JP3255904B2 - Image forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a printing machine, a copying machine, a facsimile, and a laser printer, and more particularly to an execution of a plurality of different copy modes of an image forming apparatus and sheet processing of an original and a copy. The present invention relates to an image forming apparatus that is considered.

[0002]

2. Description of the Related Art Some image forming apparatuses form an image by setting a plurality of modes. In this case, the mode refers to a sort mode, a stack mode, a staple mode or the like as sheet processing, and a mode such as copy size, magnification, the number of copies, one-sided / two-sided copy as image formation. There is a type in which a setting is input as a reservation mode, and image formation, for example, copying is performed in accordance with the set mode.

On the other hand, as a sheet processing apparatus attached to an image forming apparatus, a sorter or a stacker using a bin is generally known. These sorters and stackers are provided, for example, on the downstream side of the fixing device of the copying machine in the sheet conveying direction, and stack copied sheets in the order of pages or the same page according to the sort mode or the stack mode. . In recent years, some bins have a stapler that automatically binds sheets after sorting or stacking sheets stacked in these bins. These are also commonly referred to as sorter staplers.

[0004]

By the way, even if a conventional image forming apparatus, for example, a copying machine is provided with the above-mentioned mode, when executing the mode, a mode using a so-called sheet storage bin such as a sorter or a stacker is used. When the sheets are stored in all the mode storage bins, the subsequent processing cannot be executed. In other words, when sheets are stored in all the sheet storage bins, it is impossible to proceed to the next process unless the operator removes those sheets. Therefore, even if a plurality of copy modes are set by the angle reservation mode, if the sheet storage bin to be stored is full, the operator must remove the sheet, and there is a problem that the mode reservation becomes meaningless. .

The present invention has been made in view of the above-described circumstances of the prior art, and has as its object to provide a highly productive image forming apparatus capable of executing a reservation mode regardless of the number of sheet storage bins. Is to do.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus having a sheet sorting means for sorting sheets after image formation, in which the unsorted sheets are stored in the sheet sorting means after the end of the job without stapling. Then, when a predetermined time has elapsed so that the sheet can be removed by the operator before the sheet is stapled, if the sheet remains in the sheet sorting means, the sheet is bound and then the sheet is removed. This is achieved by providing a sheet removing means for removing the sheet from the sheet storing means.

In this case, it is preferable to further provide a display means for displaying that the sheets are to be bound and removed after the preset time has elapsed.

In the above means, when a predetermined time has passed so that the operator can remove the sheet after the last sheet of the job is stored in the sheet sorting means, the sheet remains in the sheet sorting means. Since the sheet is removed by the sheet removing means, even if the sheets are stored in all the sheet sorting means, the sheet sorting means is opened after a certain time,
The processing in the next mode can be automatically performed.

When a plurality of different copy modes are set, the operator is warned by displaying in advance that a sheet is to be bound and removed after a predetermined time has elapsed.
This allows the operator to respond even if there is no sheet in the sheet sorting means.

[0010] In the present specification, the description of the above means and functions according to the present invention is mainly described in [3.
Post-processing section], [6. Operation control of each part], [8. Post-copy discharge processing] and [9. Document processing control].

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Before describing the embodiment in detail, the contents of the description of the embodiment will be schematically shown. The following is the title, and please refer to the necessary places along the title as needed.

[1. Overall Configuration] [2. Document Conveying System] 2.1 Multi-stage ADF << 2.2 Document Conveying Unit >> << 2.3 Document Inverting Unit >> << 2.4 Document Stacking Unit >> << 2.5 Document Stack Tray Unit >> << 2.6 Doggytail Section] [3. Post-processing system section] << 3.1 Sheet storage bin >> << 3.2 Staple mechanism >> << 3.3 Sheet dropping mechanism >> << 3.4 Jogger mechanism >> << 3.5 Sheet deflection mechanism >> [4. Control circuit] [5. Overall control concept] [6. Operation Control of Each Section] << 6.1 Overall Control of Overall >> << 6.2 Reservation Mode >> << 6.3 Execution of Reservation Mode Job >> << 6.4 Processing with Original Processing Key >> << 6.5 Copy Processing Key Process> [7. Difference in flow due to difference between original and transfer paper modes] [8. Post-discharge processing] << 8.1 Initial processing >> << 8.2 Jogger driving processing >> << 8.3 Switching wheel initial processing >> << 8.4 Switching wheel driving processing >> << 8.5 Up / down check of sheet storage bin >> << 8.6 Lifting / lowering control of sheet storage bin >> << 8.7 Stapler movement processing >> << 8.8 Staple processing >> << 8.9 Sheet dropping processing >> [9. Document Processing Control] << 9.1 Initial Processing >> << 9.2 Moving Document Bin >> << 9.3 Document Bin Feeding Position Set >> << 9.4 Feed-in Processing >> << 9.5 Paper Jam Check Processing << 9.6 Document Discharge Processing >> << 9.7 Document Stack Processing >> << 9.8 Refeeding Processing >> << 9.8 Jam Check Timing >> << 9.10 Document Transport Operation Timing >> << 9.11 Document Flow and Timing ”[10. Overall Flow of Job Execution] The following description will proceed in accordance with this sectioning.

[1. Overall Configuration] First, a copying machine according to an embodiment of the present invention will be described.

FIG. 1 is a schematic configuration diagram showing an outline of the entire internal structure of a copying machine according to an embodiment.

In FIG. 1, the copying machine 1 mainly comprises an optical system unit 3, an image forming system unit 5, a paper feeding system unit 6, a control system unit 7, a document conveying system unit 9, and a post-processing thread unit 11. I have.

The optical system section 3 includes a known light source, a movable and fixed mirror group 13 and a lens 15, and irradiates a document placed on the contact glass 17 from behind the contact glass 17 with irradiation light. Reflected light to mirror group 1
A latent image is formed on the surface of the photoconductor by irradiating the photoconductor, which will be described later, via the lens 3 and the lens 15.

The image forming system unit 5 forms an image by a known electrophotographic process. The image forming system unit 5 includes a photosensitive drum 19 as a photosensitive member, and a charger 21 disposed along the image forming direction of the photosensitive drum 19. It comprises a developing device 23, a transfer charger 25, a separation charger 27, a cleaning device 29, and a fixing device 31 provided along a later-described transport path of the paper feeding system unit 6.

The paper feed system 6 includes two paper feed trays 33, 3
5, and a transfer path 39 for picking up transfer paper 37 from one of the paper feed trays 33 and 35, transferring the image in the image forming system unit 5, and transferring the image to the post-processing system unit 11. The transfer charger 25, the separation charger 27, and the fixing device 31 are provided along the path 39, and a branch claw 41 for duplex copying is provided downstream of the fixing device 31 in the transport direction.
And an intermediate tray 43. Needless to say, along the transport path 39, various transport rollers including the pickup roller 45 and the registration roller 47 and a group of rotating claws used for switching the transport path are provided.

The control system section 7 is provided with a control circuit, which will be described later, which controls image forming control, transport control of the transfer paper 37, transport control of the original, and control of post-processing of the transfer paper 37 and the original. Is set in advance so that it can be automatically performed by setting in advance in the manual operation or the reservation mode. This control will be described later in detail.

The document conveying system 9 includes a multi-stage document feeder (multi-stage ADF-multi-stage automatic document feeder) 49 and a document reversing unit 52. The multi-stage ADF 49 further includes a document bin 2
And a document conveying unit (document conveying unit) 51. The multi-stage unit 50 is set so that a five-stage document bin can be moved to a paper feed port by a Geneva wheel described later, and the documents stored in the bins of each stage can be individually sent to the document transport unit 51. . In the document transport unit 51, the document sent from each bin is transported by the transport belt 53 to the contact glass 17.
After being conveyed upward and exposed, the document is conveyed to the document discharge unit 55 side or the post-processing system unit 11 side. In the document discharge section 55, the document is turned over and transported again onto the contact glass 17 so that copying on the back side can be performed.
It can also be used as Details will be described later.

The post-processing system section (finisher) 11 includes a 20-stage sheet storage bin 57 as storage means for storing sheets (in this embodiment, referred to as sheets including transfer papers and originals), and a sheet storage bin 57 for storing the sheets. A paper discharge tray (proof tray) 59 for storing the discharged sheets other than the bin 57
A transfer sheet or a document is introduced from the transport path 39 of the paper feed system unit 6 or the document discharge unit 55 of the document transport system unit 9 to set a sheet storage bin 57 or a discharge tray 59 set in advance.
And a stapler 65 for binding the sheet bundle prepared by the jogger 63, a switching unit 61 for switching the sheet conveyance direction to the right side, a jogger 63 as alignment means for aligning the sheet bundle stored in the sheet storage bin 57, and a stapler 65. The stacker 67 is of a so-called stapler type mainly composed of a stack tray 67 for detaching (falling) the stacked sheet bundle from the sheet storage bin 57 and stacking.

Hereinafter, each part will be described in detail. In this copying machine, the image forming system unit 5 and the paper feeding system unit 6 are well-known copying machines, and therefore will not be described in any particular way. Only control will be described.

[2. Document Conveyance System Section] First, as a copying order, copying cannot be performed unless a document is set.

<< 2.1 Multi-stage ADF >> FIG. 2 is an enlarged view of a main part of the document transport system section 9. The document transport system, that is, the multi-stage ADF 49 has five-stage document bins 201a, 201b, 201c,
The multi-stage unit 50 includes 201d and 201e (hereinafter, the reference numeral 201 is used when a document bin is generally indicated), and a document transport unit 51 also illustrated in the detailed view of FIG. The multi-stage unit 50 is shown in FIG.
As shown in the main part plan view and the explanatory view showing the structure and operation of FIG. 4A, a document bin 201 as a document placing table on which a document 69 is placed, and a document transport of each document bin 201 203a, 203b, 203c, 2 which also function as actuated members formed at the distal end on the downstream side in the direction.
A Geneva wheel 207 that engages with any one of the original bins 03d and 203e (hereinafter, the stopper 203 is generally referred to by a reference numeral 203) to move any of the original bins 201 to the original feeding position; Document bin 2 when fed
A bottom plate 211 that pushes up the original 69 placed on the original 01 to the pickup roller 209 side, a separation roller 215 provided along the transport path 213, and a pull-out (registration) roller 217 that regulates the transport timing of the leading end of the original 69. It is mainly composed.

The original bin 201 is provided on the Geneva wheel 20.
7, a bin guide path 219 provided on a side plate 261 supporting the Geneva wheel opposite to the rotation locus of the notch formed in the notch 7, and the side plate 261 partially opposing the rotation locus.
The stopper 203 is set so as to be guided by being engaged with upper and lower bin guide paths 220 and 221 provided substantially vertically (in the vertical direction) on the upper bin guide path 220.
Of the original bins 201 to the lower bin guide path 221 on the center side of the Geneva wheel 207 from the Geneva wheel 2
A bin switching claw 223 is provided along the lower bin guide path to be guided away from 07. Bin 20 for each document
1 is located at a position adjacent to the stopper 203.
A bottom plate raising hole 225 is formed so that the document plate 1 can push up the document 69 placed on the document bin 201. A tension spring 2 is provided at the bottom of the lower bin guide path 221.
27, the stopper 20 located on the bin guide path 221
A push-up member 229 for constantly urging the upper portion 3 elastically is mounted. The Geneva wheel 207 is driven to rotate in forward and reverse directions by a wheel motor 231 composed of a stepping motor.

Call roller 209 and separation roller 215
Are driven by a conveyance motor 233 via a pickup roller drive belt 210 and a separation roller drive belt 216, respectively, and the driving force of the conveyance motor 233 is transmitted to a registration clutch 237 which controls the drive of a pull-out roller 217 via a gear 235. Is transmitted. The registration clutch 237 is driven by a registration solenoid 238. Further, a bin switching solenoid 240 that drives the bin switching claw 223 is disposed further below the lower bin guide path 221.

The bottom plate 211 is oscillated by a bottom plate drive arm 239, and is driven by a bottom plate drive motor 241 that can rotate forward and reverse. Also, the transport path 21
3, a leading edge detection sensor 243 for detecting the leading edge position of the document 69 and a registration detecting sensor 245 for detecting the registration state of the document 69 are provided.
0, and the document bin 201 is
A document set detection sensor 249 is provided to detect whether or not the document bin 201 is set at a position corresponding to the upper surface when it enters the 47 side. Below the bottom plate 211, a bottom plate home position sensor 251 for detecting a home position retracted from the bottom plate raising hole 225 of the document bin 201 is provided. Standby home position sensor 257 and paper feed home position sensor 25 for detecting the home position
9 is provided at a position facing the Geneva wheel 207. Each of these mechanisms is housed in a side plate 261 that supports the document bin 201 via guide paths 220 and 221.

FIGS. 4B and 4C show the original bin 20.
FIG. 3 is an explanatory diagram for explaining an ascent / descent operation and a movement operation to a document feeding position in FIG. At the initial position, as shown in FIG. 4A, the original bin 201 group includes five original bins 201a to 201e and a dummy bin (corresponding to the push-up member 229) located below the Geneva wheel 207. Push-up member 229
Is constantly urged upward by a tension spring 227 that elastically urges the first-stage original bin 201a to the Geneva wheel 2
07 is pressed against the outer periphery. Further, the bin switching claw 223 is in a state of being lowered downward.

When the wheel motor 231 rotates counterclockwise from this state, the Geneva wheel 207 is also rotated counterclockwise by the wheel motor 231. When a not-shown notch provided on the Geneva wheel 207 comes to a position facing the stopper 203a of the document bin 201a, the stopper 203a fits into the notch by the elastic force of the tension spring 227. During this time, since the Geneva wheel 207 continues to rotate, the document bin 201a is raised along the bin guide path 219 provided on the side plate 261 as the Geneva wheel 207 rotates. When the document bin 201a comes to the position of the paper feed home position sensor due to this rise, the paper feed home position sensor 259 detects this. This detection output stops the wheel motor 231 (this position is indicated by A4 in FIG. 4B showing the operation of the third-stage original bin 201c).
Position), this time rotating in the opposite direction, ie, clockwise. With this rotation, the Geneva wheel 207 also rotates clockwise, and the stopper 203a of the document bin 201a is rotated.
The document bin 201a is advanced in the direction of the document feeding position in a state in which is engaged. In the process of this rotation, Geneva wheel 2
The reason why the stopper 203a engaged with the notch 07 moves to the B4 position without detaching from the notch 219 is that the stopper 203a comes to a position facing the lower bin guide path 221 in the second stage. This is because the stopper 203b of the document bin 201b stands by while being elastically urged upward at the opening of the lower bin guide path 221, and the bin guide path 221 is closed by the next bin. .

When the document bin 201a is advanced in the direction of the document feeding position in this manner, the document set detection sensor 2
49 detects the original set position, that is, the original feeding position, and stops the wheel motor 231 (this position is 3
B in FIG. 4B showing the operation of the original bin 201c in the lower row.
4 positions). As a result, the document bin 201a is set at the document feeding position. When the document bin 201a is set at the document feeding position in this manner, the bottom plate lifting motor 241 starts rotating as will be described later, and the bottom plate 2
The original 69 is pressed against the page roller 209 with the upper part 11 raised, so that the original 69 can be fed.

In this manner, the first-stage original bin 201
When the job a is completed, the original bin for the next job is selected according to the previously input mode. Therefore, it is necessary to retract the bin 201a for which the job has been completed. This retreat operation is performed by rotating the wheel motor 231 counterclockwise from the document feeding position (B4 position). That is, when the wheel motor 231 rotates counterclockwise, the Geneva wheel 207 also rotates in the same direction, and the rotation causes the stopper 203a of the document bin 201a to move in the same direction. Thereby, when returning to the A1 position, the upper bin guide path 220 is opened this time,
When the stopper 203a engages with the opening, the Geneva wheel 207 is separated from the notch. Then, when the notch is rotated counterclockwise and comes to a position facing the stopper 203b of the document bin 201b located at the upper end of the lower bin guide path 221, the stopper 203b fits into the notch. The document bin 201b is fed to the document feeding position or the upper bin guide path 220 by the same operation. When the document bin 201 located on the upper bin guide path 220 is returned to the lower bin guide path 221 in this manner, the wheel motor 231 is rotated clockwise, and the Geneva wheel 207 is rotated in the same direction. Then, when the notch of the Geneva wheel 207 comes to a position facing the opening of the upper bin guide path 220, the stopper 203 of the document bin 201 falls into the notch due to its weight and engages. On the other hand, the bin switching claw 2 retracted from the rotation locus of the Geneva wheel 207
As shown in FIG. 4C, 23 rises to a position where the rotation locus of the notch is cut off by the driving means (not shown). Accordingly, when the stopper 203 that has descended while rotating clockwise while engaged with the stopper 203 comes into contact with the bin switching claw 223 when it comes to a position facing the opening of the lower bin guide path 221. Will be. By this contact, the stopper 203 is pressed against the contact surface of the bin switching claw 223, and further moves downward along the lower bin guide path 221 against the elastic biasing force of the tension spring 227, thereby turning off. Break away from the chip. When you leave in this way,
Next time, the outer peripheral surface of the Geneva wheel 207 is
, So that the stopper 203 is connected to the lower bin guide path 22.
Never leave 1 This state is the state shown in FIG.

FIG. 5 is a schematic explanatory view showing a mechanism for raising the bottom plate. In the figure, the bottom plate 211 is a bottom plate raising arm 22.
9 are provided on the original bin 201 from below the original bin 201 by the bottom plate elevating motor 241 and press the original 69 to the retrieving roller 209 side. When set to the position, the bottom plate raising motor 241 starts rotating, and the bottom plate 211 rises. The document 69 lifted by the bottom plate raising motor 241 abuts on the page rollers 209, and the page rollers 209 are slightly lifted in this state. Then, the rising detection shielding plate 265 releases the shielding state of the rising detection sensor 263 (the direction of arrow A). As a result, the bottom plate raising motor 241 is turned off, and the raising of the document 69 is stopped. Also,
When the copy is executed and the upper surface of the document 69 is lowered, the rising detection shield plate 265 gradually rises (in the direction of arrow B).
1 is turned on, and the original 69 is raised.

The rotation speed of the bottom plate raising motor 241 is reduced to about 1/10 by two gears. This is because the torque of the bottom plate raising motor 241 is increased through the gear, and the document 69 is slowly lifted, and the upper limit detection sensor 2
This is for improving the detection accuracy of 63. A worm gear is used as the first stage gear of the bottom plate raising motor 241 in order to prevent a force in the reverse direction from acting on the sector gear 235 due to the weight of the document in the document bin 201.

FIG. 6 shows a call roller 209 and a separation roller 21.
5, FIG. 7 is a schematic configuration diagram showing the structure near the pull-out roller 217, and FIG. 8 is an explanatory diagram showing the vicinity of the call roller 209. In these figures, after the original 69 is inserted, the print key 663 of the copying machine 1
When is pressed, the calling solenoid 267 is turned on. When the calling solenoid 267 is turned on, the plunger is pulled, and the operating shaft 269 and the assembly 271 of the operating lever 270 fixed to the operating shaft 269 rotate in the direction of arrow C, and the calling roller 209 descends and comes into close contact with the document 69. I do. Next, the conveyance motor 233 is turned on, and transmitted to the separation roller 215 via the separation roller drive belt 216,
The separation roller 215 rotates. This rotational driving force is transmitted to the page roller 209 via the page roller drive belt 210, and the page roller 209 rotates to feed the original 69.

Since the registration solenoid 238 is turned on at the same time as the transfer motor 233 is turned on, the transfer motor 23 is turned on.
The driving force of No. 3 is transmitted to the registration clutch 237, further transmitted to the gear 235, the pull-out roller 217 rotates, and the original 69 is sent to the original transport unit 51.
The registration clutch 237 uses a spring clutch. When the document 69 is sent to the document transport unit 51 and the registration detection sensor 245 is turned off, the registration solenoid 238 is also turned off, and the registration clutch 237 is stopped by the stopper claw. Pullout roller 21
7 also stops, and the feeding of the original 69 stops.

In the automatic document feed mode (ADF mode), the calling solenoid 267 is set to
When the leading edge detection sensor 243 is turned on, it is turned off. In the semi-automatic document feed mode (SADF mode), the registration solenoid 245 is turned on to turn off the calling solenoid.

The separation roller 215 separates the original 69, and as shown in the side view of FIG. 9A and the front view of FIG. 9B, upper and lower separation rollers 215a and 215b (hereinafter referred to as the (When a reference is made to the separation roller, the reference numeral 215 is attached), the steps are formed alternately in the circumferential direction, and the steps are formed so as to bite in steps. Thus, the original 69 is separated by the frictional force, thereby improving the transportability of the original and preventing double feeding.

As shown in FIG. 10, the separation rollers 215 are used to separate the original
5, the support shaft 27 of the lower separation roller 215b
3 rotates in the feed direction by the rotation of the operating lever 275 provided at one end, and securely holds the original 69. The lower separation roller 215b prevents the wear of the separation roller 215 and the double feed of the original 69. Therefore, while the transport motor 233 is ON, the motor is gradually rotating in the reverse direction. Transport motor 233
Is turned on, the drive is transmitted to the upper separation roller 215a via the separation drive gear 277. Separation drive gear 2
As shown in FIGS. 10 and 11, the boss portion 77 is an eccentric cam. The boss portion comes into contact with the operating lever 275 by the elastic force of the spring 278 so that when the eccentric cam rotates, it follows the cam shape. The operation lever 275 swings. A one-way clutch 279 is press-fitted into the operation lever 275, and when the operation lever 275 moves upward, the lower separation roller 215b also rotates.

These separation rollers 215 are designed to prevent contamination by a manuscript such as a pencil document by releasing the gap between the separation rollers 215 for each copy. That is, as shown in FIG. 12, the upper separation roller 215a
Is provided with a release shaft 282 to which a separation roller release eccentric cam 281 is attached.
3 is fitted in the concave portion 284. This adjustment plate 283
Is inserted into the shaft of the lower separation roller 215b.
Another eccentric cam 278 is provided at one end of the release shaft 282, and the lever 27 of the separation roller release solenoid 285 is provided.
6 can be driven. With this configuration, the separation roller release solenoid 285 is turned on.
Then, the plunger of the solenoid 285 is sucked,
As a result, the lever 276 operates and the eccentric cam 278 rotates. This rotation also causes the release shaft 282 to rotate, and the rotation of the release shaft 282 causes the separation roller release eccentric cam 28 to rotate.
1 also rotates. Then, the adjustment plate 283 rotates about the support shaft 286 by the rotation of the eccentric cam 281 for separating roller release, the lower separating roller 215b moves downward, and the gap between the upper and lower separating rollers 215 is released. You.

FIGS. 13 to 16 show the original transport unit 5.
Release unit 1 (in other words, opening of pressure plate 288 (lift))
It is explanatory drawing which shows the detail of closure detection. As shown in FIG. 13, the document conveying unit 51 is provided with a set detection sensor 289 for the pressure plate 288. This set detection sensor 289 is composed of a micro switch. When the tip of an arm 291 protruding from the base 290 side lowers the pressure plate 288, as shown in FIG.
Is turned on by pressing the movable end, and the setting detection of the pressure plate 288 is performed. In setting the pressure plate 288, a spring 292 is used in this embodiment instead of a general brake shoe. That is, as shown in FIG. 15, the spring 292 is extended to hold the pressure plate 288 at the non-set position at the time of non-setting.
When the number 8 is lowered, it is compressed as shown in FIG. 16 so as to limit the descending speed. On the upper surface of the pressure plate 288, a pressure plate side document discharge tray (not shown) (which is a part of the cover) is provided.

<< 2.2 Document Transport Unit >> The document transport unit 51 having the transport path 301 following the transport path 213 of the multi-stage unit 50 described above is driven by the drive roller 303 and the driven roller 303 as shown in the schematic explanatory view of FIG. A plurality of pressing rollers 30 stretched between rollers 305 and further disposed behind
9, a conveyer belt 53 pressed toward the contact glass 17, a branch claw 313, a turn roller 315, and a turn gate for inverting the original 69 discharged from the conveyer belt 53 to the convey path 311 and guiding it again to the contact glass 17. 317, a paper discharge roller 319 provided at the entrance side of the turn gate 317, and first and second paper discharge detection sensors 321 and 322 for detecting the discharge of the document 69. I have.

The driving roller 303 is, as shown in FIG.
The document transport motor 323 is set to drive the transport belt 53 via the timing belt 325 and the gear group 327, and the document 69 is transported onto the contact glass 17 by the transport belt 53. Thereafter, when the designated pulse is reached, the conveyance motor 323 is turned off, so that the fed document stops at the designated position on the contact glass 17. After stopping at the designated position, the exposure is performed. After the exposure is completed, the transport motor 323 is turned off again by the paper discharge signal from the main body.
N, and the document is conveyed from the stop position. FIG.
As shown in FIG. 9, the paper discharge motor 330 is also turned on, and the driving force is transmitted to the paper discharge roller 319 via the intermediate gear 331, and the paper discharge roller 319 is rotated. 69 is discharged.

The ON / OFF control of the motor is performed by detecting a document size. That is, as shown in FIG. 20, the document size is detected by detecting the length by the registration detection sensor 245 and detecting the width by the size detection sensor 332. In this case, the length refers to a pulse from ON to OFF of the registration detection sensor 245. These data are transmitted to the copier main body as size data in the paper designated scaling and automatic paper selection mode.

<< 2.3 Document Reversing Unit >> FIG. 128 shows the details of the document reversing unit 310 of the document transport unit 51. The original 69 conveyed from the original conveying section 54 can perform four operations as shown in FIGS. 129A to 129D by the original reversing section 310.

FIG. 129 (a) shows the original 69 transferred to the original transporting section 5.
4 to the document stacking section 52. In this mode, since the reversing solenoid 316 is in the OFF state, the switching claws 318a, 318b, and 318c are located at the positions indicated by the one-dot chain lines shown in FIG. 128, and are sent from the document feeder 54 by the normal rotation of the turn roller 315. The document 69 passes through the conveyance path 311, is cut off the sheet discharge detection sensor 321, and is sent to the document stack unit 52. When the paper discharge detection sensor 321 detects the rear end of the document 69, the turn roller 315 and the transport belt 53 stop.

FIG. 129 (b) shows a mode in which the original 69 sent from the original transport section 54 is inverted and sent to the original stack section 52. In this mode, since the reversing solenoid 316 is in the ON state, the switching claws 318a, 318b, 3
Reference numeral 18c denotes a position indicated by a solid line in FIG. 128, and the paper discharge roller 319 meshed via the gear is also rotated forward by the normal rotation of the turn roller 315, and the original 69 passes through the transport path 311 and is discharged. The sheet is cut off the detection sensor 321 and then 322, and is sent to the sheet discharge roller 319 side. Here, when the paper discharge detection sensor 322 detects the rear end of the original 69, the reversing solenoid 316 is turned off, and at the same time, the turn roller 31 is turned off.
5 stops. Thereafter, since the turn roller 315 rotates in the reverse direction, the original 69 is again cut off the sheet ejection detection sensor 322 and sent to the original stacking section 52. The original discharge sensor 3
When 22 detects the trailing edge of the original 69, the turn roller 315
Stops.

FIG. 129C shows a mode in which the original 69 sent from the original transport unit 54 is reversed and returned to the original transport unit 54. In this mode, the reverse solenoid 316 is ON
In this state, since the turn roller 315 and the transport belt 53 are rotating forward, the original 69 is cut off the paper discharge detection sensor 321 and sent to the paper discharge detection sensor 322 side. Here, when the paper discharge sensor 322 detects the leading end of the document 69, the reversing solenoid 316 is turned off, and the document 69 is sent to the turn gate 317 side. At this time, the original 69 is sent onto the contact glass 17 because the transport belt has been reversed in advance.

FIG. 129 (d) shows a state where the original 69
4 This is a mode in which the light is discharged onto the upper cover. In this mode, since the turn roller 315 and the paper discharge roller 319 are normally rotating with the reversing solenoid 316 turned on, the original 69 is cut off the paper discharge detection sensors 321 and 322 and discharged from the paper discharge roller 319 to the outside. You. When the paper discharge sensor 322 detects the trailing end of the document 69, the turn roller 315 and the transport belt 53 stop after a predetermined time. For the operation control, see the flowchart of FIG. 127 described later.

<< 2.4 Document Stack Unit >> The document stack unit serving as the document stack unit 52 is a document transfer unit 351 following the document transport unit 51 as shown in FIG.
And a document stack tray section 353 and a doggy tail section 355.

The original stacking unit 52 is an original receiving port 35 which follows the end of the original conveying unit 51 on the sheet discharging side of the conveying path.
7, a stack tray side conveyance path 359 toward the stack tray section 353, a doggy tail side conveyance path 361 toward the doggy tail section 355, and the finisher 11 described above.
And three transfer paths 359, 361, and 363, which are connected to the finisher side transfer path 363.
65 can be arbitrarily switched. A document 69 is sent from the document receiving port 357 to the switching member 365 via an entrance-side transport path 367. A pair of transport rollers 369 are provided along the entrance-side transport path 367 for transporting the original 69. A first entry detection sensor (entry detection 1) 370 for detecting entry of the document 69 into the transport path 367 is provided. Further, a second entry detection sensor (entry detection 2) 368 for detecting entry of the document 69 from the stack tray 353 side is also provided on the transport path 359. Conveyance paths 359 and 36
1 is also provided with conveying rollers 371, 372, 373,
Further, the stack tray section 353 and the doggy tail section 3
Discharge rollers 374 and 375 are provided at the discharge port on the 55th side.

The switching member 365 has a substantially pentagonal shape in a side view, and has first to third switching transport paths 365 therein.
a, 365b, 365c are formed. The first switching conveyance path 365a connects the entrance side conveyance path 367 and the doggy tail side conveyance path 361 (FIG. 23), or the entrance side conveyance path 367 and the stack tray side conveyance path 359 (FIG. 2).
2), the second switching transport path 365b is the entrance-side transport path 3
67 and the finisher side conveyance path 363 (FIG. 24), and the third switching conveyance path 365c is the stack tray side conveyance path 3
59 and the finisher-side transport path 363 (FIG. 23).
a, 365b, 365c
76 are provided. The switching member 365 is rotated by a switching stepping motor 377, and can freely switch between the three paths. At the time of this switching, the position can be detected by a switching home position sensor 378 provided above the switching member 365 in the drawing.

The stack tray side transfer path 359
Also, original discharge detection sensors 379 and 380 are provided at the ends of the doggy tail side conveyance path 361, respectively.

<2.5 Document Stack Tray Section> The document stack tray section 353 is provided with a leading roller 381 and a leading roller driving solenoid 383 as shown in FIG. 3
The document 69 discharged onto the stack tray 382 by 74 is fed back by the leading edge roller 381 to align the leading edge of the document. The leading edge roller 381 is used until the trailing edge of the document has passed the detection portion of the discharge detection sensor 379 in FIG.
As shown in FIG.
When the document 69 is completely positioned on the stack tray 382 in the upper position in the FF state, the leading end roller driving solenoid 383 is turned on, and is lowered to the lower position to contact the document 69. After that, the leading end roller 381 rotates and the original 69
Is sent in the reverse direction, and is sent up to the document call roller 384. Immediately after the document 69 is fed backward, the leading roller driving solenoid 383 is turned on, the leading roller 381 rises from above the stack tray 382, and waits for the next document 69 to be discharged.

As shown in FIG. 26, the calling mechanism of the original 69 includes a calling roller 384 and the calling roller 38.
A drive device (not shown) for rotating the document 4 and a call lever 385 for pressing the original 69 against the call roller 384
And a calling solenoid 386 for driving the calling lever 385. As a result, the leading end of the original 69 is transported to the call roller 384 by the leading end roller 381, and when a paper feed signal is input from the copying machine main body, the call solenoid 386 is turned on, and the call lever 385 presses the original 69 onto the call roller 384. ,
The original 69 is brought into close contact with the call roller 384. Next, a paper feed spring clutch (not shown) is turned on, and the pick roller 384 starts rotating, and the stack tray portion 382
The lowermost document 69 is sent out of the document stack stacked in the stack.

In this embodiment, a separation belt 389 and a separation roller 390 as shown in FIG. 27 are used to separate the lowermost document 69 from the document bundle.
That is, the separation belt 389 contacts the separation roller 390,
It is stretched by the elastic force of the spring 391. Thus, the original 69 is separated by the frictional force, and the separation rollers 3
The paper is conveyed along the 90 rotation direction.

<2.6 Doggy Tail Part> As shown in the front view of the main part of FIG. 28 and the side view of the main part of FIG.
93. The drive mechanism 393 includes a shift tray drive motor 393a, a worm 394 fixed to a drive shaft 393b of the drive motor 393a, a worm wheel 395 meshing with the worm 394, and a rotation shaft from the outer peripheral side of the side surface of the worm wheel 395. An engagement protrusion 395a protruding in parallel and a first engagement groove 396a engaging with the engagement protrusion 395a are formed.
The link bin 396 is swingably supported by a link 96c. The engagement bin of the shift tray 392 is formed through a second engagement groove 396b formed on the opposite side of the first engagement groove 396a of the link 396. 392a. Also, on the side of the worm wheel 395 opposite to the protruding engagement projection,
The home position of the shift tray 392 In other words,
A home position sensor shielding plate 395b for detecting the home position of the worm wheel 395 is protruded, and the home position sensor 397 is located at a position where the home position of the shift tray 392 corresponding to the position of the home position sensor shielding plate 395b can be detected. Are arranged.

With this configuration, when the shift tray drive motor 393a is turned on and the drive shaft 393b rotates, the worm 394 rotates, and the rotation of the worm 394 is transmitted to the worm wheel 395 to rotate. When the worm wheel 395 rotates, the home position sensor shielding plate 395a shields the optical path of the home position sensor 397 to obtain the home position.
At this time, the link 396 is inclined as indicated by the symbol F, and the shift tray 392 is in a state of being moved to the front side, that is, to the document transfer unit 351 side. Then, after the original 69 is sent,
The shift tray drive motor 393a rotates by a preset number of pulses until the worm wheel 395 rotates 180 °, and the link 396 becomes inclined as indicated by the symbol R. As a result, the shift tray 392 is brought to the rear side. As described above, the shift tray 392 is set to slide with a stroke of 30 mm in this embodiment due to the inclination between the signs F and R. In addition,
The home position sensor shield plate 395a can be provided on the opposite side of the above embodiment when the home position may be on either the front or rear side.

[3. Post-Processing System Unit] After the transfer paper 37 is copied by the image forming system unit 6, it is conveyed to the finisher 11 and post-processed according to a mode instructed (input) by the operator. In parallel with this, the original 69 may be conveyed to the finisher 11 depending on the input mode, and post-processing may be performed according to the input mode. This post-processing refers to the original 69 or the transfer paper 37 after copying.
Processing such as sorting and stapling. In this embodiment, a bin-movable saw / stapler is used,
The transfer paper 37 and the original 69 can be processed by the saw / stapler. The details will be described below.

<< 3.1 Sheet Storage Bin >> As shown in FIG. 30, the sheet storage bin 57 has one end integrally joined along the longitudinal direction of the sheet storage bin drive shaft 401.
At a position adjacent to the sheet storage bin 401, a first
Hole 4 for the dropout 431 to advance
Nos. 03 are formed at three positions, and a staple notch 405 is formed at one of the edges adjacent to the same sheet storage bin 401 so that staples can advance.
Further, a notch 407 for taking out a sheet is formed on the other end side so that the operator can take out the sheet by hand, and a notch 407 is provided so that the jogger can advance to a substantially central portion of the sheet storage bin 57. Long hole 40 for paired joggers
9 are drilled. The lower edge in FIG. 30 is a rising portion 411 as shown in FIG. 34. The edge of the sheet is intended to be applied to the rising portion 411 so that the sheets can be aligned. I have. In addition, what is shown by a two-dot chain line in the figure is the outer shape of the arranged sheet.

As described above, in the present embodiment, 20 sheet storage bins 57 are prepared, and as shown in FIG.
The other than the last bin is loosely fitted in the third guide groove 415 so as to freely move up and down, and is driven by the helical wheel 417 shown in FIG.

A pair of helical wheels 417 are provided as shown in FIG. That is, the helical wheel 417 rotates integrally with the coaxial rotation shaft 420, and the rotation detection plate 422 and the bin driving pulley 40
6 are each mounted on the shaft. A bin drive pulley 408 is mounted on the lower end of the other helical wheel 417. Then, a pulley shaft-mounted on the rotation shaft of the bin motor 418 and the two bin driving pulleys 406 and 40
The driving force of the bin motor 418 is transmitted via a bin drive belt 410 stretched between the bin motor 8 and the drive motor 8. In order to transmit the driving force satisfactorily, a bin driving belt pressing pulley 412 is provided between these pulleys, and an appropriate pressing force is applied to adjust the tension of the bin driving belt 410.

A notch is provided in a part of the rotation detecting plate 422 in the circumferential direction, and light transmitted through the notch is detected by a bin detecting sensor 404 composed of a photo interrupter. The bin detection sensor 404 detects the position of the notch every predetermined rotation of the rotation detection plate 422, for example, every rotation, and generates a pulse. Therefore, the number of rotations of the helical wheel 417 can be determined by counting these pulses, and the number of stages of the sheet storage bin 57 can be detected from the number of counts from the initial position.

A spiral groove 419 for three rotations is formed in the helical wheel 417. When the helical wheel 417 rotates, the upper and lower two sheet storage bin driving shafts 4.
01 is bitten by the spiral groove 419 of the helical wheel 417 and rises. In addition, the bin holder drive shaft 421 protruding from the top of the bin holder 413 also rises at the same time,
The helical wheel 417 stops, overlapping the drive shaft 401 of the upper sheet storage bin 57 (up) that has fallen from the notch and has risen. At this time, the lower sheet storage bin is stopped at the position of the drive shaft 401 at 57 (down). In FIG. 32, the upper sheet storage bin 57 (u
The position p) corresponds to a staple standby position described later.

<< 3.2 Staple Mechanism >> FIG. 33 is a front view of the stapler 65 as viewed from the paper discharge side, and FIG. 34 is a side view of the same. In both figures, stapler 65 is 1
The sheet storage bin 5 is formed by the pair of lead screws 423.
7 is supported so that it can approach and separate from the side surface. The lead screw 423 is driven to rotate by a stapler moving motor 427 via a gear group 425, and this rotation causes the above-described approach / separation operation of the stapler 65 (arrow M3).
3 directions). In FIG. 33, the interval W33 between the one-dot chain line L33 on the left and the one-dot chain line R33 indicating the end of the right sheet storage bin 57 indicates the width of the staple notch 405 in FIG. At times, the stapler 65 is retracted from the staple notch 405 by driving the stapler moving motor, and enters the staple notch 405 during stapling. In addition,
The retracted position of the stapler 65, that is, the home position is the lead screw 423, the stapler moving motor 427.
And a home position sensor 429 attached to a side plate supporting the gear group 425.

As shown in FIG. 41 which is a perspective view of the stapler main body, the stapler 65 has a hammer 424, a link 42
6, a cam 428, a drive gear 430, a driven gear 432, and a drive motor 434. The hammer 424 includes a drive gear 430 driven by a drive motor 434, and a driven gear 432 meshing with the drive gear 430.
Is driven by a link 426 that operates in accordance with the rotation of a cam 428 that is rotationally driven through. In this stapler 65, when the sheet is set to the staple position, the hammer 424 starts to rotate, and when it rotates once, the hammer 424 shown in FIG.
The stapler home position sensor 436 is pushed as shown in the side view of the stapler of FIG.
Rotation stops. During this time, stapling is performed. In addition,
As shown in FIG. 43, this stapling is performed such that the upper end of the staple is located 5 mm from the upper edge and the side edge of the sheet.

<3.3 Sheet Drop Mechanism> The finisher 11 is provided with the stack tray 67 for dropping the stapled paper bundle out of the stapler 65 from the sheet storage bin 57 and stacking the stack as described above. . A mechanism as shown in FIGS. 35 to 37 is provided for dropping a bundle of sheets, that is, sheets, on the stack tray 67.

FIG. 35 is a structural view of a main part viewed from the front of the main body of the copying machine, FIG. 36 is a plan view of a main part showing a drop, and FIG. 37 is a perspective view showing a drop and a drive mechanism of the drop. In these figures, the rollers are composed of three first rollers 431 and three second rollers 433, and the first rollers 431 are lower arms 43.
5, and is rotatably supported by the second roller 5. The second roller 433 is coaxially supported by a roller driving shaft 437. A transmission rubber 439 is stretched between the second roller 433 and the first roller 431, and the rotation of the roller driving shaft 437 is transmitted from the second roller 433 to the first roller 431. ing.

The dropping roller raising arm 435 is loosely fitted on the outer periphery of the dropping roller drive shaft 437, and is rotatable along the outer periphery of the dropping roller drive shaft 437 separately from the dropping roller drive shaft 437 as described later. ing. A pulley 443 is attached to one end of the drop roller drive shaft 437, and the rotation of a drop roller drive motor 441 provided separately is transmitted by a drop roller drive belt 445. In addition, a gear 447 is axially attached to one end of the dropping arm 435,
A sector gear 449 meshes with this gear 447 via an intermediate gear 448. The sector gear 449 is driven by a dropping roller moving motor 451, meshes with a driving gear 453 concentrically supported by its driving shaft, and obtains a driving force from the driving gear 453 by rotation of the dropping roller moving motor 451. The drive range of the sector gear 449 is set to 120 ° in this embodiment, so that the drop-down lift arm 435 can also rotate 120 °. With this configuration, the first and second set rollers 431 and 433 rotate by 120 ° from the position shown by the two-dot chain line in FIG. 35 while rotating, and the first set rollers 431 are dropped. It protrudes from the roller hole 403. As a result, as can be seen from the operation explanatory view showing the dropping operation of the stapled sheets in FIG. 132, the stabled sheets S stored on the sheet storage bin 57 come off the paper stopper (not shown), and the sheet storage bin 57 From the stack tray 67 side.

As shown in FIG. 132, the stack tray 67 has an inclined surface 455 for returning the sheets S stored in the sheet storage bin 57 to the opposite side in the sheet conveying direction and turning the sheets S by 90 ° and dropping them on the front surface of the main body. . This drop will be apparent from the operation explanatory diagrams of (1) to (6) in FIG. In the operation explanatory diagrams from (1) to (6), the left side is a front view as viewed from the discharge side, and the right side is a corresponding side view, that is, a front view as viewed from the front of the copier. ing.

<< 3.4 Jogger Mechanism >> In order to staple and stack the sheets S as described above, the sheets S
Need to be aligned. For this purpose, a sheet aligning mechanism, that is, a jogger mechanism is provided. FIG. 38 is a front view of a main part including a jogger mechanism viewed from the front of the copying machine, and FIG. 39 is a schematic configuration diagram showing a driving mechanism thereof. The jogger mechanism includes front and rear jogger rods 461 and 462 loosely inserted from the uppermost sheet storage bin 57 into the above-described long hole 409 for jogger, and a pair of the jogger rods 461 and 462. And a motor (hereinafter, referred to as a jogger motor) 463 for driving the jog rods 461 and 462 along the long hole 409 for jogger by the rotation of the jogger motor 463. It has become.

The jogger motor 463 is composed of a stepping motor, and has a driving pulley 467 mounted on its rotating shaft.
And the long hole 40 for the jogger in the longitudinal direction.
Driven pulley 469 provided at a position facing each other across
The drive belt 465 is stretched between them. The jogger rods 461 and 462 are at the home position detected by the jogger home position sensor 471 when the main switch is ON, and move to a position based on the cassette size data or a position based on the document size data when the start key is ON.

This position is a position L40 (= 15 mm) larger than the paper size P40 on the back side as shown in FIG. 40. In this state, the paper is prepared to enter the sheet storage bin 57. When the paper has been discharged, the jogger fence moves to the paper size and aligns the paper.
This paper alignment operation is performed every time paper advances into the sheet storage bin 57.

<< 3.5 Sheet Deflection Mechanism >> The sheet deflecting device 475 installed in the switching section 61 is provided between a plurality of transport rollers, and the switching wheel 477 arranged in the sheet arranging device 475 is turned. By moving, a plurality of transport paths including an entrance path and a discharge path can be communicated. In this embodiment, the transport path is the one shown in FIG.
As shown in the figure, the entry side means the document entry path Gin and the transfer sheet entry path Pin, and the discharge side means the tray conveyance path Tout and the bin conveyance path Bout. Therefore, the following combinations of [1] to [4] can be obtained as communication paths.

[0075] The switching of the sheet guide paths in the above [1] to [4] is shown in FIG. 96 described later, and the movement angle (pulse) data of the switching wheel is shown in FIG. 95 described later.

As shown in the perspective view of FIG. 44, the switching wheel 477 is composed of two parts, a front switching wheel 479 and a rear switching wheel 481, which are located on the front side when viewed from the front of the main body of the copying machine 1. A switching wheel rotation shaft 483 is provided. This switching wheel rotating shaft 4
A switching wheel driving pulley 485 is pivoted at one end corresponding to the rear side of the motor 83 and is driven by a switching wheel driving motor 487 via a switching wheel driving belt 491 stretched between the pulley 489 and the motor side pulley 489. The pulley in contact with the switching wheel drive belt 491 in the figure is a tensioner 493 for adjusting the tension of the switching wheel drive belt 491. In addition, a face plate 497 is fixed to a front end of the switching wheel rotation shaft 483 via a knob 499 screwed to the switching wheel rotation shaft 483 via a switching wheel fixing spring 495.

As shown in the perspective views of FIGS. 1 and 45, the outer periphery of the switching wheel 477 is provided so as to face openings of guide paths 525 and 527 in the switching wheel 477 described later. Document entry path Gin, transfer paper entry path Pin, tray transport path Tout, and bin transport path Bo
ut, two pairs of transport rollers 501 and 5 respectively.
03, a pair of paper discharge rollers 505 and 507 are provided.
These transport roller pairs 501 and 503 and discharge roller pair 5
05 and 507 are driven by the drive motor 517 via conveyance belts 521 and 523 stretched between pulleys 513 and 515 fitted on the support shaft 509.511 of one roller and a pulley 519 of the drive motor 517. The sheet entering from one of the document entry path Gin and the transfer sheet entry path Pin is transferred to the tray transport path Tout and the bin transport path Bo.
ut.

As shown in FIGS. 44 and 46, inside the switching wheel 477, there are formed two guide paths 525 and 527 slightly touched before. This guideway 525
Is for setting the combinations of the above-mentioned transport paths [1] to [4], and the combination of the transport paths can be changed by driving the switching wheel drive motor 487.
The switching wheel 477 is composed of two parts, a front switching wheel 479 and a rear switching wheel 481, as described above, and both of them are provided with positioning holes 531 formed in the end face of the front switching wheel 479. Wheel 48
Positioning pins 529 erected on one end face are fitted to synchronize the two when positioning and rotating. This takes into account the jam of the seat, and if the knob 499 is removed from the switching wheel rotation shaft 483 by adopting the above configuration, the face plate 497 and the front switching wheel 479 are pulled out along the switching wheel rotation shaft 483 and the hand is pulled out. The sheet jammed in the guide paths 525 and 527 can be easily taken out.

FIG. 133 is a view mainly showing sensors arranged around the switching wheel 477. FIG. 133 shows a case where a document is stored in the sheet storage bin 57.

In the figure, a transfer paper entry detection sensor 534, 504 is provided immediately before the conveyance roller pair 533 and the conveyance roller pair 503 in the transfer paper entry path Pin in the conveyance direction. Similarly, the document entry detection sensor 53 is located at the same position of the pair of transport rollers 535 and 501 in the document entry path Gin.
6, 502 is a transport roller pair 5 of the tray paper path Tout.
37 and 539 are located at the same position.
And a tray discharge relay detection sensor 540, and a discharge detection sensor 542 at the same position of the pair of transport rollers 541 in the bin paper path Bout. Also,
A bin home position sensor 543 is provided at the home position of the support portion of the sheet storage bin 57, a stapler home position sensor (429 position), a staple needle end detection sensor (429 position) for stapling,
A staple rotation detection sensor (429 position) is provided with a jogger home position sensor 471 in the case of a jogger, and a switching wheel home position sensor 545 for detecting a rotation position of the switching wheel in the case of a switching wheel 477.

The switching wheel 477 is driven by the switching wheel drive motor 487 as described above, whereby the number of pulses is counted from the current position data of the switching wheel 477 to thereby newly input the guide path 5.
25 or 527 can be selected.

[4. Control Circuit] FIG. 47 is a block diagram schematically showing a control system of the copying machine main body. The block diagram is roughly divided into three sections. They are an operation unit / AC control system, a copying process control system, and an optical control system.

The operation unit / AC control system mainly includes the operation unit / AC control system.
It comprises a central control device (hereinafter, referred to as CPU) 551 for controlling the entire control system, an AC drive circuit 553, a read-only memory (hereinafter, referred to as ROM) 555, and a gate array 557. The AC drive circuit 553 is connected with an AC power supply 559, a fixing heater 561 and a drive motor 563 to which electric power is directly supplied from the AC power supply, and controls these, and also controls the lamp 565. This AC drive circuit 553
The CPU 551 is connected to the N port and outputs the output of each output system.
Is being entered. The CPU 551 receives an instruction input from the key input matrix in addition to the instruction, and displays the guidance display 567.
To the ROM 557 directly and via the latch 569,
The gate array 557 and the decoder 571 connected to the display matrix are connected to and control these.

The copying process control system includes the CPU 573 and the ROM 5
75, a nonvolatile random access memory (hereinafter referred to as a nonvolatile RAM) 557, two serial data transmitting / receiving elements 579 and 581, and two gate arrays 58
3,585. These are input / output via the bus, respectively, and can be controlled by the CPU 573. Reference numerals 587 and 589 are a decoder and a latch, respectively.

The serial data transmission / reception element transmits / receives data to / from a CPU of a document feeder described later. The gate array 583 has various outputs 584 for the copying process.
The gate array 585 is for various inputs 586 for the copying process.

The optical control system is a CPU 59 having a built-in ROM.
1. Programmable timer 593, servo motor 596
Mainly composed of the drive circuit 595 of FIG. The programmable timer 593 and the drive circuit 595 are connected via a bus, respectively, and the output of an encoder 599 for detecting the rotational position of the servomotor 596 is input to the CPU 591. The CPU 591 receives an input of a detection output from the document size detection sensor and the document density detection sensor 592, and further from various position detection sensors 594, and performs various controls belonging to an optical control system including a variable magnification stepping motor 598. The CPU 573 for the copying process control system includes a CPU 551 for the operation unit / AC control system and a CPU 551 for the optical control system.
591 are connected via the TxD terminal and the RxD terminal, respectively.

FIG. 48 is a block diagram schematically showing an original supply control system of the original transport unit 11. A document supply control system includes a CPU 601 that controls the overall control system,
ROM 603 and gate array 60 connected to U 601
5, two motor controllers 607 and 609, drivers 611 and 613, and a latch 615. In this control system, the CPU 601 controls the document discharge unit 5
5. In other words, each control element of the document stack unit, the first to third door detection sensors 617 and 61
9, 621, driver 611 and motor controller 60
, A driver (H-type driver) 623 for the original conveying belt driving motor, that is, the original conveying motor 323, and an encoder 62 for detecting the rotational position of the original conveying motor 323.
5. Document output motor 330, size sensor 332, document leading edge detection sensor 2 via motor controller 609
43, registration sensor 245, document set detection sensor 2
89, paper ejection sensors 321 and 322, and a lift-up switch 289 are directly connected. Gate array 6
05 is called via the driver 613 and the solenoid 2
67, separation release solenoid 285, registration solenoid 238, reversing solenoid 316, and bottom plate raising motor 2
41 are connected to each other, and further, each control element of the multi-stage ADF 49 is connected.

FIG. 49 is a block diagram schematically showing a control system of the finisher 11. As shown in FIG. The control system of the finisher 11 includes a CPU 651 that controls the overall control system and a ROM 6.
53, a gate array 655, and a latch 657. The finisher 11 is included in the CPU 651.
The output signal 659 of each control element is input to enable various controls to be described later, and the roller drive motor 434, the jogger motor 463, the switching wheel drive motor 487, and the drop-down roller drive motor 44 are provided via the gate array 655.
1. It is connected to various control elements of the stapler 65 and the like.

The CP of the document supply unit control system
U601 is connected to the serial data transmitting / receiving element 579 of the copying process control system through the TxD1 terminal and the RxD1 terminal, and the CPU 651 of the finisher control system is connected to the serial data transmitting / receiving element 581 of the copying process control system through the TxD2 terminal and the RxD2 terminal. This allows
The CPU 573 of the copy process control system and all the CPUs 551, 591, 601, 651 of each section can communicate with each other, and the control elements of each section can be integrally controlled by the CPU 573 of the copy process control system.

[5. Overall Control] The following is a brief description of what kind of control is performed by combining the components configured as described above.

FIG. 134 shows a conceptual diagram of the control. As can be seen from this figure, the copying machine body 1 and the multi-stage A
The DF 49 and the finisher 11 perform various checks or processes when the power is turned on.

That is, in the copying machine main body 1, the initial processing 134-1 is first executed, and then the standby processing 134
-2, pre-processing and copy processing 134-3, post-processing 13
4-4 are respectively executed. Each of these processes includes an error mode 134-
5 is set so that various errors can be handled. The initial process 134-2 mainly includes a display initial process and a flag initial process. The standby process 134-2 includes a key input process and a mode setting process. Further, the pre-process and the copy process 134-3 include a repeat process, and the post-process 13
4-4 indicates the processing after the end of the repeat. If the copy is completed or interrupted, the processing shifts from this processing to the standby processing 134-2, and if there is an error, the processing shifts to the error mode processing 134-5.

In the multi-stage ADF 49 and finisher 11, mode processing and abnormality check 134-6, 134-8
And timing processes 134-7 and 134-9 are performed, and these are repeatedly executed.

[6. Operation Control of Each Unit] Control of the overall operation of each unit configured as described above and the copying machine system formed by these units will be described with reference to flowcharts.

<< 6.1 Overall Control >> The copier 1 according to this embodiment has a five-stage multi-stage ADF on the document feeding side.
49, a plurality of jobs can be executed sequentially. That is, a plurality of, in the embodiment, up to five jobs are input as the reservation mode, the input is stored, and the execution order of the copy is selected so that the copy productivity is increased, and the processing according to the job contents is performed. Can be set to In addition, a normal copy mode can of course be selected, and the reservation mode and the normal copy mode are selected by nonvolatile RAM data or a dip switch on a printed wiring board.

The processes in the reservation mode and the normal mode include a copy operation process, a post-copy discharge process, and a document process. In the copy operation processing, the copy operation is performed according to the set mode in both the reservation mode and the normal mode. In the post-copy discharge process, sorting, stapling, and other processes are performed according to a preset mode. In addition,
In the sort mode, the lowermost bin among the 20 bins of the finisher 11 is the first bin, and in the staple mode, the uppermost bin is the first bin. In the document processing, the document is discharged to the shift tray 392 or the sort bin (sheet storage pin 57) or the like in accordance with a preset mode. When discharging onto a sort bin, this processing is executed after all copy discharge processing is completed.

<< 6.2 Reservation Mode >> The reservation mode is as follows.
A mode in which a plurality of jobs are set in advance, and the start timing of the job (copy operation) is determined and executed by the copying machine side. The job processing method and the like are the same as those in the normal copying operation.

As conditions for setting the reservation mode, there are two conditions: a peripheral device (each option group) is designated; and a reservation mode is selected.

The condition in this case is determined based on whether each option group is connected online by serial communication. When this condition is satisfied, both the reservation mode and the normal copy mode can be selected and executed.
As described above, the data in the nonvolatile RAM 577 is rewritten,
One of them is selected using a means such as a dip switch on the printed wiring board.

The outline of the setting of the reservation mode is as follows. It should be noted that each unit of the operation unit should be referred to FIG. 53 described later.

(1) At the time of input ・ The reservation mode key 661 is turned ON.

The reservation (acceptance) LED 677 blinks. (Receive LED 667 blinks / Escapes from reservation mode when lit) ・ After entering a 3-digit number (PIN), select reservation key 6
The target key of P1, P2, P3, P4 and P5 of 71 is turned ON.

When an input error occurs, the mode clear key 665 is kept in a valid state.

If it is not three digits, it is evacuated from the reservation mode. (If P1 to P5 are already ON, the mode is cleared and the mode is changed.) ・ If the 3-digit code input is OK, the reservation selection key 66
LEDP for display corresponding to each key P1 to P5
1, LEDP2, LEDP3, LEDP4, LEDP5
Make one of them blink.

Turn on the reservation LED 677.

After entering the reservation mode, enter key 673
Turn ON.

The reservation mode is entered, and the enter key 6
If 73 is ON, the LED 675 corresponding to the key selected for reservation selection is turned on.

The reservation LED 677 is turned off.

(2) Mode clear and change ・ The reservation mode key 661 is turned ON.

After entering a three-digit number, enter the reservation mode key 6
One of the keys P1 to P5 of 61 is turned ON.

When an input error occurs, the mode rear key 665 is kept in a valid state.

If the three-digit numbers at the time of input do not match, the reservation error LED 679 is turned on and then the system is evacuated from the reservation mode.

If it matches the three-digit number at the time of input, it is OK.

The LED corresponding to P1 to P5 of the LED 675 blinks.

Change to the setting mode.

Turn on the reservation LED 677.

(3) At the time of mode clear ・ The mode clear key 665 and the enter key 673 are simultaneously turned on (for 0.5 seconds).

The corresponding LED 675 and the reservation 677 are turned off.

(4) At the time of mode correction ・ Enter the change mode by key and turn on enter key 673
To

At the end of the job, the LEDs 675 of P1 to P5 corresponding to the job are turned off.

During the execution of the job, the stop key is kept in a valid state.

The reservation is made possible.

Details of the processing at this time are shown in FIGS.
This will be described with reference to the flowchart of FIG. FIG. 50 shows a processing procedure for setting the reservation mode.
After executing a subroutine of serial transmission / reception processing with a peripheral device at -1, whether the document stacker 52 is connected to the finisher 11 (step S50-2; Connected (S50-3), whether the multi-stage unit 50 is connected (S50-4),
2 are connected (S50-5), and each is determined.
If all are connected, the setting of the reservation mode is permitted in step S50-6, and the routine returns. In addition, the above step S
If there is a peripheral device that is not connected in each of steps 50-2 to S50-5, the setting of the reservation mode is prohibited in step S50-7, and the process returns.

Then, the processing shifts to the processing in FIG. 51, and in step S
If the setting of the reservation mode is permitted in 51-1, the reservation mode is selected in step S51-2. The selection of the reservation mode can be made by using the nonvolatile RAM 577, the dip switch or other means as described above. If the reservation mode has been selected, step S
In step 51-3, copy control is executed as a reservation mode. If the setting of the reservation mode is not permitted in step S51-1 and if the reservation mode is not selected in step S51-2, step S51-4 is performed. Is used to perform normal key input copying.

When the reservation mode is selected in step S51-2, input, change, and clear of the reservation mode job all require a three-digit number input (password).
This is to prevent the job from being cleared or changed by another operator. The processing at this time is shown in FIG.
This will be specifically described with reference to FIG.

In this processing, first, the reservation mode key is
It is determined whether or not N is set. Reservation mode key 661
Is located above the print key 663, as shown in the front view of the main part of the operation unit in FIG. 53, and a mode clear key 665 is provided between the reservation mode key 661 and the print key 663.
And an interrupt key 667 are provided. A numeric keypad and a clear / stop key group 669 are arranged on the left side of the print key 663, a reservation selection key group 671 for selecting five kinds of reservation modes is arranged above the print key 663, and an enter key 673 is arranged on the right side thereof. . Reservation selection key group 6
Above each key 71, an LED group 675 composed of five display elements (LEDs) for displaying the status of the reservation is displayed. On the right side, a reservation LED 677 as a display element for confirming the reception of the reservation and a reservation error are displayed. Reservation error L indicating
ED679 is provided respectively.

If it is determined in step S52-1 that the reservation mode key 661 has been turned on, the process proceeds to step S52-1.
At 52-2, it is determined whether or not the reservation LED is turned off. If it is off, the reservation LED 677 is turned on (S5).
2-3) The ten-key 669 is operated to input a three-digit password (S52-4). If the mode clear key 669a has not been turned on after code input (NO in S52-5), it is determined whether any of the keys P1 to P5 of the reservation selection key group 671 has been turned on (S52-).
6). If it is determined in step S52-6 that any key is ON, the LED 6 corresponding to that key is turned on.
It is determined whether 75 is OFF (S52-
7). If it is OFF, the LED 675 corresponding to the key is blinked in step S52-8, and step S52-8 is performed.
At 52-9, the reservation LED 677 is turned ON. Then 3
The digit code data is stored in the memory (S52-10),
A code input flag is set (S52-11). And
A subroutine of step S52-12 is executed to set a mode with each reservation mode key 661, and a mode check process is performed by a subroutine of step S52-13. This process ends (YES in S52-14), and if mode clear key 665 is not ON (S52).
(NO at -15), timer 1 is stopped and cleared (S52-
16), the timer 1 start flag is lowered (S52-1)
7). Thereafter, it is determined whether or not the enter key 673 is turned on (S52-18). If it is turned on, the LED 675 of the target reservation selection key 671 is turned on (S52-19) and the reservation LED 677 is turned off (S52-19). S5
2-20) After storing the mode data and the set number in the memory (S59-21), the process returns. FIG. 54 is a memory map schematically showing the code data stored in the memory. If it is determined in step S52-18 that the enter key 673 is OFF, the process returns.

If the mode clear key 665 has been turned on in the judgment of step S52-15, the mode clear processing of step S52-22 is performed, and it is judged whether or not the enter key 673 is turned on (S52-23). . If it is determined in this step that the enter key 673 has been turned ON, it is determined in step S52-24 whether or not a timer start flag has been set, and if it has been set, whether or not the timer 1 has been counted up is further determined in step S52. Judge at -25. If the timer 1 is counting up, the mode setting corresponding to the key selected by the reservation selection key 671 is cleared (S
52-26), and turns off the corresponding LED 675 (S52-
27) Then, the reservation LED 677 is turned off (S52-2).
8) Then, the code input flag is lowered (S52-29).
Next, the timer 1 is stopped and cleared (S52-30),
The timer 1 start flag is lowered (S52-31) and the routine returns. If it is determined in step S52-23 that the enter key 673 is OFF, step S52-
The processing after 30 is executed as it is.

If it is determined in step S52-23 that the timer start flag has not been set, the value
The second timer 1 is started, the timer 1 start flag is set (S52-32), and the process returns to step S52-
If it is determined in step 25 that the timer 1 has not counted up, the process returns.

If it is determined in step S52-14 that the mode check processing has not yet been completed, in step S52-33, a check is made to see if the number of prints in each mode is over, and the check state is checked. Is displayed, and if the mode clear key 665 is ON (YES in S52-34), the process proceeds to step S52.
Executes the process after the mode clear process of -22 and turns off.
If it remains (NO in S52-34), step S52
The process after -12 is executed.

Also, in step S52-7, the target LED 67 selected by the reservation selection key 671 is selected.
If the LED 5 is ON, it is determined whether the LED 675 is blinking (S52-35). If the LED 675 is blinking, the LED 675 is turned off (S52-36). Is cleared (S52-3)
7). Thereafter, the code input flag is lowered (S52-3).
8) After clearing all modes (S52-39),
The reservation LED 677 flashes (S52-40) and the process returns.

On the other hand, in step S52-35, the LED 67
If it is determined that 5 is not blinking, 3-digit code data is loaded from the memory (S52-41), and whether the 3-digit code input and the 3-digit code loaded from the memory match each other. Is determined (S52-4)
2). If it is determined in step S52-42 that they match, the LE corresponding to the key to be selected is selected.
D675 is turned on and off (S52-43), the mode data stored in the memory is loaded (S52-44), and the setting according to the mode data is performed (S52-45). Then, a code input flag is set (S52-46), and the LED 675 corresponding to the selection target is turned on (S52-4).
7). After that, the process from step S52-13 is executed. If it is determined in step S52-42 that the codes do not match, the process proceeds to step S52-48 described later.
Move to the subsequent processing. It is also possible to set so that the reservation error LED 679 and other display elements are turned on for a certain period of time before proceeding to the processing after step S52-48.

If the mode clear key 665 has been turned on in step S52-5, the key input of the three-digit password is cleared (S52-48) and the routine returns.
Further, the reservation selection key 6 to be processed in step S52-6
If 71 is OFF, the process returns.

Further, the reservation LED 677 sets the step S5.
If it is determined in 2-2 that it is ON, the blinking of the reservation LED 677 is confirmed in step S52-49.
75 is turned off (S52-50), the 3-digit code data in the memory is cleared (S52-51), and the code input flag is set to 0 (S52-52). Next, a subroutine for clearing all the reservation modes is executed (S52-5).
3) Return after turning off the reservation LED 677. If it is determined in step S52-49 that the reservation LED 677 is blinking, the reservation LED 677 is turned off (S52-54) and the process returns. The first step of this flowchart, that is, step S52
When it is determined that the reservation mode key 661 is in the OFF state in -1, it is determined whether or not the code input flag is set in a step S52-55. If the code input flag is set, the process from the step S52-13 is executed. If it has descended, the flashing of the reservation LED 677 is further confirmed (S52-5).
6). Then, if the reservation LED 677 is blinking, the process from step S52-4 is executed, and if not, the process returns.

When the reservation job is set as described above, the selected job number, that is, the reservation selection key 6
71, corresponding bins 201, 202, 20 of the multi-stage ADF 49 corresponding to the keys P1, P2, P3, P4, P5.
Originals are set on 3, 204, and 205. Then, an execution job is selected and executed according to each reservation mode.

<< 6.3 Execution of Reservation Mode Job >> When the copying machine 1 is in the reservation mode and in the standby state, the execution order of the five reservation modes (jobs) is determined by the following factors.

If all are in the staple mode, the order of input is the same.

In the non-staple mode, if the next job can be executed with the number of empty sheet storage bins of the finisher 11, that is, the number of bins not used in the non-staple mode, the non-stable mode is executed.

In this embodiment, in the non-staple mode, the setting is made so that the job remains on the sheet storage bin 57 of the finisher 11 for 5 minutes after the end of the job.
This is intended so that the operator can remove the sheet from the sheet storage bin 57 in the meantime. However, if the sheet is left on the sheet storage bin 57 for more than 5 minutes, the execution of the next job will be delayed.
7 to make the sheet storage bin 57 empty so that another job can be executed. Therefore, the processing time of the entire job is determined by how to utilize the time of 5 minutes.

FIG. 55 is an explanatory diagram showing the relationship between job reservation and execution in the reservation mode. This figure shows the order of receiving the reserved jobs, the reserved mode, the number of bins to be used, the number of bins with remaining sheets, and the order of executing the reserved jobs. The following modes are set in this reserved job.

1) (a) Five staples of copies (b) Staples of originals (c) The number of bins used is 5 (d) The number of bins with sheets remaining is 0 2) (a) Eight copies of copy staples (b ) Documents are sorted bins. (C) The number of bins used is 8 + 1. (D) The number of bins with remaining sheets is 93. (3) (a) Five copies of staples. (B) The staple is also used for documents. (C) The number of bins used is 5 (d). ) The number of bins with sheets remaining is 0 4) (a) 15 sorts of copies (b) Documents are shift trays (c) The number of bins used is 15 (d) The number of bins with sheets remaining is 155) (a) Copy (B) Original is a shift tray. (C) The number of bins to be used is 10. (d) The number of bins where sheets remain is 06.) (a) 15 copies of copies. (B) Originals are sorted bins. The number of bins to be used is 15 + 1 (d) The number is 16 7) (a) 15 copies of sorts (b) Documents are sorted bins (c) The number of bins to be used is 15 + 1 (d) The number of bins with sheets remaining is 168) (a) 20 staples of copies (b ) Documents are on the shift tray. (C) The number of bins to be used is 20. (d) The number of bins where sheets remain is 09.) (a) 10 copies of staples. (B) The staples for documents. (C) The number of bins to be used is 10 ( d) The number of bins with sheets remaining is 0 10) (a) 5 copies of sorts (b) Documents are sorted bins (c) The number of bins to be used is 5 + 1 (d) The number of bins with sheets remaining is 6 , When the jobs are executed in the input order of the job reservation, when the jobs up to 5) are completed, the job time of 1) + the job time of 2) + the 5-minute timer (waiting time in the non-staple mode) +3)
Job time + 4) job time + 5 minute timer + 5) job time. However, since the 5-minute timer is a timer from the end of the job, it is set so that the job in which the timer starts, that is, the non-staple mode, is set to be processed later.
If the job is executed in the order of 2) → 3) → 5) → 4),
1) Job time + 2) Job time + 5 minute timer +
The job time of 3) + the job time of 5) + the job time of 4) is completed, and the job ends 5 minutes earlier, which is the time of the 5-minute timer. Similarly, the job after 6) is executed. The order of this execution is shown in the rightmost column of FIG.
The completed jobs are sequentially shifted as shown in FIG.

The processing for executing these reserved jobs will be described in detail with reference to flowcharts. FIG. 57 is a flowchart showing the means for determining the execution order of jobs in the reservation mode.

In this procedure, first, at step S57-1
And any one of the keys P1 to P5 of the reservation selection key 671 is O
It is determined whether or not N is set. If it is turned on, the mode data and numeric data set by the turned-on reservation selection key are called in step S57-2. Then, it is determined whether or not the staple mode is set based on whether or not the staple mode flag is set (S57-3). If the staple mode is not set, it is further determined whether or not the mode is the sort mode with the sort mode flag (S57-4). If the sort mode is set, the set data which is data of the number of copies is set in the remaining paper bin counter (S57-5), and the sort flag is set (S5).
7-6). Next, the staple flag is lowered (S5).
7-7) Numerical data, which is data of the number of copies, is set in the used bin counter. Step S57-
If it is determined in step 3 that the staple mode is set, the remaining paper bin counter is reset (S57-9), the staple flag is set (S57-10), and the sort flag is set down (S57-11). Proceed to step S57-8.

When the processing in step S57-8 is completed,
This time, it is determined whether or not an ORG sort mode flag indicating whether or not the mode is for storing the document in the sheet storage bin 57 is set (S57-12). The step S
If the sort mode flag is not set in the judgment of 57-4, the staple flag (S57-13) and the sort mode flag (S57-14) are lowered, and the remaining paper bin counter and the used bin counter are reset (S5).
After 7-15), it is determined whether or not the sort mode flag is set (S57-12).

If it is determined in step S57-12 that the ORG sort mode flag has been kept down, the ORG sort flag is set to 0 (S57-16), and the keys P1 to P1 of the target reservation selection key 671 are set. The P5 number is expressed in binary notation as the FP ○ H address (P ○ is P1, P
2, P3, P4 and 5) (S57-17) and return.

If it is determined in step S57-12 that the sort mode flag is set, the ORG sort flag is set (S57-18), the remaining paper bin counter is incremented by one (S57-19), and the used bin counter is also set to one. The step is advanced (S57-20). And the remaining paper bin counter is 2
It is determined whether it is greater than 0 (S57-2).
1) If it is larger, 20 is set in the remaining paper bin counter (S57-22). Next, it is determined whether or not the used bin counter is larger than 20 (S57).
-23), if it is larger, the used bin counter will be 20
Is set. If it is determined in step S57-21 that the remaining paper bin counter is equal to or less than 20, and if it is determined in step S57-23 that the use bin counter is equal to or less than 20, the next step is jumped to the next step. After performing the processing of step S57-17, the process returns.

The upper 3 bits of the FP ○ H address in step S57-17 are as follows. Refers to that.

Step S57-2, step S5
7-17 and the above P ○ are the reservation selection keys 671 (P1,
2, 3, 4, 5) shows the state of the reservation mode selected.

As shown in the flowchart of FIG. 58, the selection of a job starts by first determining the state of the job selection memory. If the job selection memory is not 0 in step S58-1, the process returns. If it is 0, it is determined in step S58-2 whether the staple flag of FPM1L is set. If it is set, step S58-10 is performed.
Store the numerical value of the number (P1-5) of the job to be executed first in the upper 4 bits of the job selection memory. The staple flag is transmitted from the CPU 573 of the copying machine 1 and
“1” indicates execution of the stapling operation. If step S
If the staple flag is not set in 58-2, it is determined in step S58-3 whether the sort flag of FPM1L is set. If not, the process proceeds to step S58-.
The process of step 10 is performed, and if it stands, the remaining paper bin counter of FPM1H and the used bin counter of FPM1L are called in step S58-4. Next, in step S58-5, it is determined whether or not the sum of the number of used bin counters of FPM1H and the number of used bin counters of FPM1L is 20 or less. If it is less than 20, the process of step S58-10 is executed, and if it exceeds 20, it is determined in step S58-6 whether the staple flag of the FPM2L of the second job is set. If it stands, that is, if stapling, the numerical value of the job number (P1 to 5) corresponding to the second job is stored in the upper 4 bits of the job selection memory, and the routine returns.

If the staple flag has been lowered in step S58-6, it is determined in step S58-8 whether the staple flag of the FPM3L of the third job is set. If the staple flag is set, the job corresponding to the third job is determined. Is stored in the job selection memory and the routine returns. If it has descended, the process of step S58-10 is executed and the process returns.

<< 6.4 Processing by Original Processing Key >> FIG.
Reference numeral 9 denotes a mode selection key and an example of display of the selected mode. The copy processing key 701 and the original processing key 703 are shown.
Are provided above the staple mode display LED 701a, the sort mode display LED 701b, the stack mode display LED 701c, the staple mode display LED 703a, and the sort bin mode display LED 703.
b, a shift tray mode display LED 703c is provided.

Therefore, in the mode set by the document processing key 703, as can be seen from the flowchart of FIG. 60, the CPU 573 first checks the finisher connection flag and the document reversing unit connection flag (S60).
-1, Step S60-2). If the respective connection flags are 0, that is, if either the finisher or the document reversing unit is not connected, the process returns.
If connected, it is determined in step S60-3 whether the setting of the reservation mode has been completed. If the reservation mode is being set, the process returns. If the reservation mode has been set, it is determined in step S60-4 whether the current mode is the interrupt mode. If not in the interrupt mode, it is determined in step S60-5 whether the document processing key 703 is further turned on. If it is determined in step S60-5 that the document processing key 703 has been turned on, the process proceeds to step S60.
At -6, it is determined whether the staple mode display LED 703a is ON. If step S60-5
If the document processing key 703 is not turned on in the judgment of (3), it is judged whether or not the staple prohibition flag is set (S
60-14) If the flag is set, that is, if the staple is prohibited, the process returns. If the staple prohibit flag is set, it is determined whether or not the reservation mode is set (S60-15). Step S60
If it is determined in the step -15 that the mode is not the reservation mode, the process returns. If the mode is the reservation mode, it is determined whether the mode is the sort bin mode (S60-16). Step S
If it is determined in step S60-16 that the sort bin mode is set, the process returns. If the sort bin mode is not set, it is determined whether the shift tray mode is set (S60).
-17). If the shift tray mode has been set in step S60-17, the process returns. If not, the subroutine of the staple (ORG) mode shown in the flowchart of FIG. 62 described later is executed (S60-18) and the process returns.

If the staple mode display LED 703a is ON in the judgment of step S60-6,
The subroutine of the sort bin mode shown in the flowchart of FIG. 63 described later is executed (S60-19). Also,
If the staple mode display LED 703a is not ON, it is determined whether the sort bin mode display LED 703b is ON (S60-7). The sort bin mode display LED 703 is determined in step S60-7.
If b is not ON, it is determined whether the shift tray mode display LED 703c is ON (S60-8). If the shift tray mode display LED 703c is ON in the determination in step S60-8, it is further determined whether or not the reservation mode is set (S60-9). If the reservation mode has not been set in step S60-9, a normal mode subroutine shown in the flowchart of FIG.
-10) Return after discharging the original, and if the mode is the reservation mode, execute the staple mode subroutine shown in the flowchart of FIG. 62 described later (S60-1).
1) The original is stapled, and then the process returns.

On the other hand, if it is determined in step S60-7 that the sort bin mode display LED 703b is ON,
It is determined whether the document stack unit 52 is connected (S60-12). If it is determined in step S60-12 that the document stack unit 52 is not connected,
The processing of step S60-8 is jumped to step S6.
The processing from 0-9 onward is executed, and the original stack unit 52
If is connected, the subroutine of the shift tray mode shown in the flowchart of FIG.

If it is determined in step S60-4 that the current mode is not the interrupt mode, the process proceeds to step S6.
When 0-8, the shift tray mode display LED 703c is OF
If it is determined that the state is F, step S
The normal mode subroutine of 60-10 is executed and the routine returns.

The normal mode subroutine in step S60-10 is processing as shown in the flowchart of FIG. In this processing, the staple mode flag, the sort pin mode flag, and the shift tray mode flag are set to 0 (S61-1, S61-
2, S61-3), and staple mode display LED
703a, sort bin mode display LED 703b and shift tray mode display LED 703c
This is the process to return to F.

The staple mode subroutine in steps S60-11 and S60-18 described above is a process as shown in the flowchart of FIG. In this process, a staple staple end check subroutine shown in the flowchart of FIG. 65 described later is executed (S62-1), and then it is determined whether or not the mode is the reservation mode (S62-2). If it is determined in step S62-2 that the mode is not the reservation mode, it is further determined whether there is any remaining paper in the finisher bin (sheet storage pin 57) (S62).
-3). If there is any remaining paper, the guidance "Remove the bin sheet" is displayed (S62-
4) The staple mode flag is set and the staple mode is set (S62-5). Subsequently, the sort bin mode flag and the shift tray mode flag are respectively lowered (S62-6, S62-7), the staple mode display LED 703a is turned on, and the sort bin mode display LE is set.
D703b and shift tray mode display LED 703
c is turned OFF (S62-8), and the process returns.

If it is determined in step S62-2 that the reservation mode is set, and if it is determined that there is no remaining paper in the sheet storage bin 57, the process jumps to step S62-5 and the subsequent processing is executed. I do.

The subroutine of the sort bin mode in step S60-19 described above is a process as shown in the flowchart of FIG. In this process, first,
It is determined whether or not the mode is the reservation mode (S63-1). If the mode is the reservation mode, a guidance display of "staples are made in 5 minutes after the end of JOB" is displayed (S63-2),
The staple mode flag is lowered (S63-3) to cancel the staple mode. Then, the sort bin mode flag is set (S63-4), the sort bin mode is set, and the shift tray mode flag is lowered (S63-4).
-5) Eliminate the shift mode. Next, the staple mode display LED 703a and the shift tray mode display LED 703c are turned off, and the sort bin mode display LED is turned off.
703b is turned ON (S63-6) and the routine returns.

If the judgment in the step S63-1 is not the reservation mode, the process from the step S63-3 is executed without displaying the guidance in the step S63-2.

The subroutine of the shift tray mode in step S60-13 described above is a process as shown in the flowchart of FIG. In this process, the staple mode flag and the sort bin mode flag are respectively lowered (S64-1, S64-2), the shift tray mode flag is set (S64-3), the shift mode is set, and the shift tray mode display LED 703c is turned on. ,
The staple mode display LED 703a and the sort bin mode display LED 703b are turned off to display the shift tray mode (S64-5), and then return.

The staple staple end check subroutine in step S62-1 is a process as shown in the flowchart of FIG. That is, in this process, first, it is determined whether the mode is the staple mode (S65-1). If it is the staple mode in this determination, it is determined whether the end of the staple has been reached (S65-2). This end detection is determined based on whether the staple abnormality 1 flag is set. If the staple abnormality 1 flag is set in step S65-2, the staple end has been reached, so the staple end flag is set (S65-3), and the staple end display is turned ON (S65). -4), input of the reservation mode is prohibited (S65-5), and the routine returns.

On the other hand, if it is determined in step S65-1 that the mode is not the staple mode, it is determined whether the mode is the reservation mode (S65-6). If the mode is not the reservation mode, the needle end display is turned off (S65-7), The flag is lowered (S65-8). Next, it is determined whether the reservation mode is set (S65-9). This step S65
If the reservation mode is set in the judgment of -9, the reservation mode input is permitted (S65-10) and the process returns. If the reservation mode is not set, the process returns.

If it is determined in step S65-2 that the staple abnormality 1 flag has not been set, since the staple end has not been reached, the processes in step S65-7 and subsequent steps are continuously executed, and in step S65-6. If it is determined that the mode is the reservation mode, the processes in and after step S65-2 are continuously executed.

<< 6.5 Processing by Copy Processing Key >> In the mode set by the copy processing key, the processing shown in the flowchart of FIG. 66 is executed. In this process, it is first determined whether or not the finisher flag is set (S66-1). If the finisher flag is set, it is determined whether or not the preheating mode is set (S66-2).
Return if not standing. If it is determined in step S66-2 that the mode is the preheating mode, the process returns. If not, it is further determined whether or not the preheating mode is being set (S
66-3). If it is determined in step S66-3 that the preheating mode is being set, the process returns. If not, it is determined whether or not the double-sided backside copy mode is in progress (S66-4). If it is a double-sided back side copy, the process returns. If not, it is determined whether or not the double-sided front side copy mode is being performed (S66-5).
If it is in the double-sided front copy mode, it is further determined whether or not the copying is stopped during the copying (S66-).
6) Return if it is stopped, and if copying is continued, determine whether the duplex mode is set (S66).
-7). If the determination in step S66-5 is not in the double-sided front copy mode, the process proceeds to step S66-7 without performing the process in step S66-6.

If the determination in step S66-7 is the duplex mode, it is further determined whether or not there is copy paper in the duplex tray 43 (S66-8). It is determined whether or not there is (S66-9). If step S66-
If the determination at 7 is not the duplex mode, step S66-
The processing directly proceeds to step S66-9 without performing the processing of step S8. If the determination in step S66-9 is the interrupt mode, the process returns.
It is determined whether the copy processing key 701 is ON. If the copy processing key 701 is in the OFF state, the routine returns. If the copy processing key 701 is in the ON state, it is determined whether or not the staple mode display LED 701a is ON (S66-11). This step S66-
If the determination in step 11 is ON, the subroutine of the sort mode shown in the flowchart of FIG. 69 to be described later is executed (S66-14), and if it is OFF, whether or not the sort mode display LED 701b is further ON is determined. A determination is made (S66-12). Step S66-12
If it is determined to be ON, the subroutine of the stack mode shown in the flowchart of FIG. 70 described later is executed (S6).
6-17) Return. If it is OFF, it is determined whether or not the stack mode display LED 701c is ON (S66-13). Step S66-1
If the stack mode display LED 701c is ON in the determination of 3, the subroutine of the normal mode shown in the flowchart of FIG. 68 described below is executed (S66-16), and if OFF, the process returns to the flowchart of FIG. The staple mode subroutine shown is executed (S66-15), and the routine returns.

The normal mode subroutine in step S66-16 is a process as shown in the flowchart of FIG. In this processing, the sort mode flag, the stack mode flag, and the staple mode flag are respectively lowered (S68-1, S68-2, S6).
8-3), sort, stack, staple MAX
The flag is lowered (S68-4), and finally the staple mode display LED 7
01a, the sort mode display LED 701b and the stack mode display LED 701c are turned off (S68-5).

The subroutine of the sort mode in step S66-14 described above is a process as shown in the flowchart of FIG. In this process, first, it is determined whether or not the mode is the reservation mode (S69-1). If the mode is the reservation mode, it is further determined whether or not the sort prohibition flag and the stack prohibition flag are set (S69-2). if,
If it is determined in step S69-2 that the sort prohibition flag and the stack prohibition flag are set, the mode is not the sort mode, and the flow shifts to the processing shown in the flowchart of FIG. 68, and executes the processing from step S68-1. If the flag is not set, the guidance display "Staple after 5 minutes after the end of JOB" is displayed (S69-
3). Thereafter, the staple mode flag and the stack mode flag are lowered (S69-4, S69-5), the sort mode flag is set (S69-6), and the staple mode display LED 701a and the stack mode display L
Turn off the ED 701c and turn on the sort mode display LED.
N (S69-7) and the routine returns.

If the determination in step S69-1 is not the reservation mode, the flow directly advances to step S69-4, and the subsequent processing is executed.

The staple mode subroutine in step S66-15 described above is a process as shown in the flowchart of FIG. In this process, first, the staple staple end check subroutine shown in FIG. 65 is executed (S67-1), and it is further determined whether or not there is any remaining paper in the sheet storage bin 57 (S67-2).
If there is remaining paper, it is determined whether or not it is in the reservation mode (S67).
-3) If the mode is not the reservation mode, a guidance display of "Please remove the sheet in the bin" is displayed, and the sort mode flag is lowered (S67-5). Step S6 described above
If it is determined in 7-2 that there is no remaining paper in the sheet storage bin 57, or if it is determined in step S67-3 that the mode is the reservation mode, the process directly proceeds to step S67-5. Then, the stack mode flag is lowered in step S67-6, the staple mode flag is set in step S67-7, and the staple mode display LED 701 is set.
Only a lights up and returns.

The subroutine of the stack mode in step S66-17 described above is a process as shown in the flowchart of FIG. In this process, first, it is determined whether the mode is the reservation mode (S70-1). If it is the reservation mode, step S68 in the flowchart of FIG.
The processing after -1 is executed. If the mode is not the reservation mode, the staple mode flag and the sort mode flag are lowered (S70-2, S70-3), and the stack mode flag is set (S70-4). Then, the stack mode display L
Only the ED 701c is turned on (S70-5), and it is determined whether the mode is the reservation mode (S70-6). This step S
If the judgment in 70-6 is the reservation mode, the guidance display "Stapling in 5 minutes after the end of JOB" is displayed (S70-7) and the routine returns. If it is not the reservation mode in step S70-6, the process returns.

Further, in the present embodiment, since the number of the sheet storage bins 57 is only 20 in connection with the above-described processing, it is necessary to consider the number of copies, that is, the number of copies input by the ten keys.

The process for checking the number of copies, that is, for checking the number of copies, is shown in FIGS. 71 and 72.
Shown in FIG. 71 is a flowchart of the process in the staple mode. In this processing, since the number of sheet storage pins is only 20 bins as described above, only 20 copies can be processed in the sort mode and the staple mode. Therefore, first, it is determined whether the sort mode flag and the staple mode flag are set (S7).
1-1) If not standing, return; if standing, determine whether copy number exceeds 20 (S7)
1-2). If the determination in step S71-2 exceeds 20, the display of "copy number exceeded" is turned ON (S
71-3), and further set the copy constant to 20 (S71-
4) Return. If the determination in step S71-2 does not exceed 20, the display of "copy number over" is turned off and the routine returns.

On the other hand, in the stack mode, as shown in the flowchart of FIG. 72, first, it is confirmed whether or not the stack mode flag is set (S72-1).
It is determined whether the copy number is larger than 50 (S7).
2-2). The copy number is 5 as determined in step S72-2.
If it exceeds 0, the display of "copy number over" is turned ON (S72-4), and the copy number is set to 50 (S72-4). If it is determined in step S72-2 that
If the copy number is 50 or less, the display of "copy number over" is turned off and the routine returns. The numeral 50 indicates the number of sheets that can be stacked.

In the reservation mode, since the number of stacks is limited, it is necessary to warn of the maximum value of the number of originals. Therefore, in the case of the reservation mode, the processing according to the flowchart of FIG. 73 is executed. In this process, first, it is confirmed whether or not the original (ORG) staple mode flag is set (S73-1).
Next, it is confirmed whether the sort pin mode flag is set (S73-2). If the sort bin mode flag is not set, the routine returns. If the sort bin mode flag is set, it is determined whether the mode is the reservation mode (S73-3). If the reservation mode is selected, a guidance display that "When the number of documents exceeds 50, the document is discharged to the proof tray" is displayed (S73-
4) If not in the reservation mode, return as it is.

If it is determined in step S73-1 that the document staple mode flag is set, the process from step S73-3 is performed without performing the process in step S73-2.

Further, even in the staple mode for copying, 50
Since there is a limit to the number of copies, it is necessary to warn the user of the maximum number of copies of 50 in the reservation mode. Therefore, in this processing, it is confirmed whether or not the staple mode flag is set as shown in the flowchart of FIG.
1) If the flags are not set, it is determined whether the sort mode flag and the stack mode flag are set (S).
74-2). If it is not standing, it returns as it is, and if it is standing, it is further determined whether or not it is in the reservation mode (S74).
-3). If the reservation mode is set, the guidance display that "if the number of sheets exceeds 50, the remainder is discharged to the proof tray" is displayed (S74-4).

If it is determined in step S74-1 that the staple mode flag is set, step S74 is performed without performing step S74-2.
-3 is executed.

[7. Difference in Flow Due to Difference between Original and Transfer Paper Modes] FIG. 75 shows a schematic configuration of the copying machine 1 shown in FIG. 1, and the multi-stage ADF 49 and the original discharge unit 52 relate to processing of sheets including originals and copy sheets. , A stack tray 382, a dog tail 382, and a discharge tray (proof tray) 5.
9, sheet storage bin 57, stack tray 67, and paper feed trays 33 and 35 on which copy papers are stacked. Since the copier body is the same as a general known one, its description is omitted, and here, the original 69, the transfer paper 37,
That is, the mode and flow of the sheet will be described.

FIG. 76 is an explanatory diagram showing a data format of copy mode reception data instructed by the CPU 573 of the copying machine main body to the document supply device 12. This command signal is composed of 4 bits, and is instructed from the CPU 573 of the copying machine main body to the CPU 601 of the document conveying unit 51 via the serial data transmitting / receiving element 579. The command signal and the command content are as shown in the figure.

On the other hand, a command based on the 3-bit mode reception data as shown in FIG. The data format and command contents are as shown in the figure. Note that manuscript 6
For the transport pattern of No. 9, the section of “9.11 Document Flow and Its Timing” described later, and FIG.
See FIG.

(1) FIG. 78 shows that the content of the copy mode reception data is "101" from the copying machine side to the document supply apparatus side.
1 indicates from the copying machine side to the finisher side the case of “000” for the original 69 and “011” to “101” for the transfer paper 37. Specifically, it is as follows.

The document 69 is supplied from the multi-stage unit 50 and is discharged as it is to a document discharge tray on the pressure plate 288 (R78a in the figure). The transfer ore 37 is discharged to the proof tray 59 (“011” —R78b shown). The document 69 is supplied from the multi-stage unit 50 and is pressed by the pressure plate 288.
The document is directly discharged to the upper document discharge tray (R78 in the figure).
a). The transfer paper 37 is discharged to the sheet storage bin 57 in the sort mode ("100" -R78c in the figure). In the case of the sort mode, the lowermost sheet storage bin 57 is the first bin.

The document 69 is supplied from the multi-stage unit 50 and is discharged as it is to a document discharge tray on the pressure plate 288 (R78a in the figure). The transfer belt 37 is discharged to the sheet storage bin 57 in the stack mode ("R" 101c in FIG. 1).

(2) FIG. 79 shows that the content of the copy mode received data is “1100” from the copying machine 1 to the document transport unit 51 side, and “000” for the document 69 from the copying machine 1 to the finisher 11 side. The case of “100” or “101” is shown for the transfer paper 37. Specifically, it is as follows.

The original 69 is supplied from the multi-stage unit 50, and after reversing, is discharged to a dog tray (shift tray) 355 (R79a in the figure). The transfer paper 37 is discharged to a blue tray 59 (“011” -R78 in the figure).
b).

The original 69 is supplied from the multi-stage unit 50, and after reversing, is discharged to a dogtail (shift tray) 355 (R79a in the figure). For the transfer paper 37, in the sort mode or the staple mode, the sheet storage bin 5
7 ("100" or "101"-R as shown)
79b).

(3) FIG. 80 shows that the content of the copy mode received data is "1100" from the copying machine 1 side to the document transport unit 51 side, and "000" for the original 69 from the copying machine side to the finisher 11 side. "1" for the transfer paper 37
00, 110 ". Specifically, it is as follows.

The original 69 is supplied from the multi-stage unit 50, and after reversing, is discharged to a dogtail (shift tray) 355 (R80a in the figure). The transfer paper 37 is discharged to the sheet storage bin 57 in the sort mode ("100").
Then, after stapling, the sheet is discharged to the stack tray 67 ("110" -R80b in the figure).

(4) FIG. 81 shows that the content of the copy mode received data is "1100" from the copying machine 1 side to the document transport unit 51 side and "000" for the original 69 from the copying machine 1 side to the finisher 11 side. The case of “011” is shown for the transfer paper 37. Specifically, it is as follows.

The original 69 is supplied from the multi-throw unit 50, and after reversing, is discharged to a shift tray 355 (R81a in the figure). The transfer paper 37 is discharged to a blue tray 59 ("100").

(5) FIG. 82 shows that the contents of the copy mode reception data are dummy data "000" from the copying machine 1 side to the document conveying unit 50 side (since only the back side is copied), and the copy machine 1 side to the finisher 11 "000" for the original 69 and "110,
101 ". Specifically, it is as follows.

The original 69 is set in the multi-stage unit 5 in the reverse mode.
0, the original is copied from the back side of the original, and two-sided copy is performed. When the original is copied on the front side, new data is received again and output to the output destination corresponding to the code (R in the figure).
82a). The transfer paper 37 is temporarily stored in the intermediate tray 43, reversed, and the copy operation is performed again.
("100, 101"-R82b shown).

(6) FIG. 83 shows that the content of the copy mode received data is "1011" from the copying machine 1 side to the document transport unit 51 side and "000" for the original 69 from the copying machine side to the finisher 11 side. The case of “100, 110” is shown for the transfer paper 37. Specifically, it is as follows.

The document 69 is supplied from the multi-stage unit 50, and is discharged as it is to a document discharge tray on the pressure plate 288 (R83a in the figure). The transfer paper 37 is discharged to the sheet storage bin 57 (“100”) in the sort mode, and is discharged to the stack tray 67 after stapling (“110”).
-R83b shown).

(7) FIG. 84 shows that the content of the copy mode received data is "1101" from the copying machine 1 side to the document transport unit 51 side, and "010" for the original 69 from the copying machine side to the finisher 11 side. The case of “100, 110” is shown for the transfer paper 37. Specifically, it is as follows.

The document 69 is supplied from the multi-stage unit 50, temporarily stored in the document stack tray 382, transferred to the sheet storage bin 57, stapled, and then stored in the stack tray 67 (“1101” —R8. 4
a). The transfer paper 37 is discharged to the sheet storage bin 57 (“100”) in the sort mode, and is discharged to the stack tray 67 after stapling (“110” —R84 in the figure).
b).

(8) FIG. 85 shows that the content of the copy mode received data is "1101" from the copying machine 1 side to the document transport unit 51 side and "010" for the original 69 from the copying machine 1 side to the finisher 11 side. The case of “100” or “101” is shown for the transfer paper 37. Specifically, it is as follows.

The original 69 is supplied from the multi-stage unit 50, temporarily stored in the original stack tray 382, and then transferred to the sheet storage bin 57 (“1101” —R85 in the figure).
a). The transfer paper 37 is discharged to the sheet storage bin 57 in the sort mode (“100”), or discharged to the sheet storage bin 57 in the stack mode (“101” —R85b in the drawing).

FIG. 86 shows an example of a mode relating to the processing of the original 69 and the transfer paper 37.

[8. Processing after Copy Discharge] Next, processing control after discharging the copy-completed transfer paper 37 will be described in detail. The timing of this processing is based on the timing chart of FIG. 87, and a detailed description is omitted.

<< 8.1 Initial Processing >> FIG. 88 is a flowchart showing a schematic processing procedure for setting an initial operation. In this process, first, an initial setting subroutine is executed (S88-1) to clear the port mode and the RAM, and further clear the flag and the counter. Next, a finisher connection flag is set (S88-2),
The CPU 573 of the copying machine is received (S88-3). Thereafter, the bin home request flag is set (S88-
4), an initial process of the switching wheel 477 is performed (S88-5), and the process returns. The bin home request flag is a flag indicating that the sheet storage bin 57 is moved to the home position, and "1" indicates a state in which the sheet storage bin 57 is being returned to the home position.

FIG. 89 is a flowchart showing a more detailed procedure of the initial setting operation. In this processing, first, it is checked whether or not the initial request flag is "1", that is, whether or not the flag is set (S89-1). If not, the routine returns. It is determined whether it is 0N (S89-2). The initial request flag means that the copying machine 1
Then, the jogger 63, the sheet storage bin 57, the dropping rollers 432, 433, the initial jam, etc. are checked with a flag which is transmitted to the first side and set to "1" on the finisher 11 side. And send it to the copier body.

If the staple home position sensor 429 is not ON in step S89-2, the stapler home request flag is set (S89-3), and
If not, it is determined whether or not a jogger ready flag, which is a flag indicating that the jogger 63 has been set to the designated jogging position ("1" indicates the end of movement), is set (S89-4). . If the jogger ready flag is set in the judgment of step S89-4, the jogger home flag is set (step S89).
89-5) If the jogger ready flag is not set, it is determined whether or not the drop roller home position sensor is ON (S89-6). The jogger home return flag is a flag indicating an operation of returning the jogger 63 to the home position, and “1” indicates that the jogger 63 is being returned to the home position.

If it is determined in step S89-6 that the drop roller home sensor is not ON, a flag for returning the drop roller to the home position ("1" indicating that a return operation is being performed) is performed. A return flag is set (S89-7), and if the drop roller home sensor is ON, it is determined whether or not the bin home detection sensor 542 is ON as it is (S89-8). If the bin home detection sensor 543 is not on, the bin home request flag is set (S89-9), and if the bin home detection sensor 543 is on, the first transfer paper entry detection sensor (transfer paper entry detection) Sensor 1) The detection signal of 534 is
It is determined whether or not there is entry into the vehicle (S89-1).
0). If the determination in step S89-10 is that there is no paper, it is further determined whether or not the detection signal of the second transfer paper entry detection sensor (transfer entry detection sensor 1) 504 indicates that the transfer paper 37 has entered ( S89-11). If step S89-10 or step S89
If the determination at -11 indicates that there is paper, a copy conveyance jam flag is set (S89-13), and the CPU 573 side is notified that the transfer paper 37 is jammed. If there is no paper, the copy conveyance jam flag is lowered. (S89-12), the CPU 573 is notified that the transfer paper 37 is not jammed. The copy conveyance jam flag corresponds to a jam detected by the first or second transfer paper entry detection sensor 534, 504, and "1" indicates that a jam has occurred and "0" indicates that no jam has occurred.

Then, the first and second original entry detection sensors 536 and 502 (the original entry detection sensors 1 and 2)
It is determined whether the detection signal of 2) indicates that paper is present (S89-14). If there is no paper, the document jam flag is lowered (S89-15), and if there is paper, the document jam flag is raised (S89-1).
6) Further, it is determined whether or not the detection signal of the discharge sensor is in a paper present state (S89-17). The document jam flag corresponds to a jam detected by the first and second document entry detection sensors 536 and 502, and "1" indicates that a jam has occurred and "0" indicates that no jam has occurred. Step S89
If the judgment at -17 is that there is no paper, the jam corresponds to the jam detected by the discharge detection sensor 542, and "1" indicates that there is a jam and "0"
To release the release jam flag indicating no jam (S89).
-18) If the paper is present, a release jam flag is set (S89-19), and then the tray paper ejection detection sensor 53
8. It is determined whether or not the detection signal is in a paper present state (S89-20). If there is no paper, the tray discharge detection sensor 538. In response to the detected jam, the paper discharge jam flag indicating that there is a paper jam with "1" and no paper jam with "0" is lowered (S89-21), and if there is paper, the paper discharge jam flag is set (S89- 22) Further, it is determined whether or not the door open sensor is ON (S89-23).

If it is determined in step S89-23 that the door open sensor is in the OFF state, it corresponds to the door open of the finisher 11, "1" indicates the open state, and "0" indicates the open state.
, The door open flag indicating close (normal) is lowered (S89-24). If the door is open, the door open flag is set (S89-25), and it is determined whether the jogger home return flag is set (S89-25). S89
-26). If the jogger home return flag is not set, it is further determined whether or not the bin home request flag is set (S89-27). If not, it is checked whether there is any remaining paper in the sheet storage bin 57 (S89-28). . If there is no remaining paper in the tray, the tray remaining paper flag is lowered (S89-29), and if there is any remaining paper in the tray, the tray remaining paper flag is raised (S89-30) and whether the staple staple end sensor is ON. It is determined whether it is (S89-31).

If the needle end sensor is in the OFF state, the needle end flag is lowered (S89-32). If the needle end sensor is in the ON state, the needle end flag is raised (S89-33), and the subroutine of the switching wheel initial processing is executed. (S8
9-34). If the jogger home return flag is set in the judgment in step S89-26, and if the bin home request flag is set in step S89-27, step S89-3 is performed directly.
Proceed to step 4. When the processing of step S89-34 is completed, it is determined whether or not the bin home request flag is set (S89-35). If the bin home request flag is set, the flag is transmitted to the CCPU 573 on the copying machine side (S89-34). 39) If the bin home request flag is down, it is determined whether or not the jogger home return flag is up (S89-36). If the jogger home return flag is set, the flag is transmitted to the CPU 573 of the copying machine 1 (S89-39), and if it is set down, it is determined whether the wheel home request flag is set (S89-37). The wheel home request flag is a request flag for setting the switching wheel 477 to the control home position. If the wheel home request flag is set in the judgment at step S89-37, the CPU of the copying machine 1
The flag is transmitted to 573 (S89-39), and if it has been lowered, the initial request flag is lowered (S89-3).
8) After transmitting the flag to the CPU 573 of the copying machine 1 (S89-39), the process returns.

<< 8.2 Jogger Driving Process >> FIG. 90 is a flowchart showing the processing procedure of the jogger driving process. In this process, first, the count-up of the timer 2 is checked (S90-1), and if not, it is checked whether or not the jogging flag is set (S90-2). The jogging flag is a flag that becomes “1” during the operation of arranging the sheets by the jogger fence 472. If the jogging flag is not set, it is checked whether the jogger home return flag is set (S90-3). If the jogger home return flag is not set, the transmission data from the CPU 573 of the copying machine is decoded (S90-4), and it is determined whether the mode reception data is 2 or 4 (S90-).
5). The mode reception data 2 is the code “001” in FIG. 77 described above, and the mode reception data 4 is the code “011” in FIG.
Is sent to the blue tray.

If it is determined in step S90-5 that the mode reception data is not 2 or 4, the process returns. If it is determined that the mode reception data is 2 or 4, it is further checked whether or not the stapler home request flag is set ( S90-6). If the stapler home request flag is set, the process returns. If the stapler home request flag is not set, it is determined whether or not the emission notice sensor 542 is further set down (S90-7). If it has fallen, the timer 1 is started (S90-
8), lowers the jogger ready flag (S90-9),
A jogging flag is set (S90-10). And
The jogging data on the data table is selected according to the sheet size data (S90-11), and the selected jogging data is stored in the jogging memory (S90).
After -12), return. Step S90-1
Processing 1 shows a state where the sheets are arranged. The jogging memory indicates a position where the jogger fence 472 is moved with the jogger home position set to “0”, and controls the movement of the jogger fence 472 together with the jogging counter.

If the emission detection sensor 542 has not fallen in the determination in step S90-7,
The jogger ready flag is lowered (S90-13), and jogging data on the data table is selected from the sheet size data (S90-14). This process is in a standby state, and the jogger is retracted from the sheet. Step S9
The jogging data selected in 0-14 is stored in step S9.
It is stored in the jogging memory at 0-15, and it is further determined whether or not the data of the jogging memory and the value of the jogging counter indicating the position of the jogger fence 472 are equal, with the jogger mom position set to "0" (S90).
-16). If the two values are equal in the determination in step S90-16, the jogger ready flag is set (S90-
17), the value of the jogging memory is substituted into the jogging counter (S90-18). And jogger motor 4
63 is turned off (S90-19), the jogger forward flag is lowered (S90-20), and the jogger reverse flag is also lowered (S90-21), and the routine returns.
Jogger forward flag means jogger 6
Reference numeral 3 denotes a flag indicating movement in the direction in which the sheets are aligned, and the jogger reverse flag is a flag indicating movement in the evacuation direction from paper alignment.

If the data of the jogging memory and the value of the jogging counter are not equal in the judgment in step S90-16, the values of the jogging memory and the value of the jogging counter are further compared (S90-22). Therefore, if the value of the jogging memory is larger than the value of the jogging counter, the jogger forward flag is set (S90-23), the jogger reverse flag is lowered (S90-24), and the jogging counter is added in accordance with the jogger motor drive pulse. After performing (S90-25), the process returns.

On the other hand, if it is determined in step S90-22 that the value of the jogging counter is equal to or larger than the value of the jogging memory, the jogger forward flag is lowered (S90-
26) The jogger reverse flag is set (S90-2).
7) Decrement the jogging counter in accordance with the jogger motor drive pulse (S90-25) and return.

If the jogger home return flag is set in step S90-3, it is determined whether the home position sensor 471 is at H level (S90-29). If it is at the L level, the jogger reverse flag is set (S90-30), the jogger reverse flag is lowered (S90-31), and the rising of the home position sensor 471 of the jogger 63 is checked (S90-32). If it is determined in step S90-32 that the home position sensor 471 has not risen, the process returns as it is. If it is determined that the home position sensor 471 has risen, the jogger 63 is moved in the reverse direction by three pulses (S90-33 in FIG. 92). The motor 463 is stopped (S90-33), the jogger reverse flag is lowered (S90-35), and the routine returns.

On the other hand, if the home position sensor 471 is at the H level in the judgment of the above-mentioned steps S90-29,
The jogger reverse flag is set down (S90-36), the jogger forward flag is set (S90-37), and the falling of the home position sensor 471 of the jogger 63 is checked (S90-38). If it has not fallen, it returns as it is, and if it has fallen, it lowers the jogger forward flag (S90-39) and stops the jogger motor 463 (S90-40). Thereafter, the jogger home return flag is lowered (S90-
41), and sets the jogger ready flag (S90-4)
2), reset the jogging counter (S90-4)
3) Return later.

If the jog flag is set in step S90-2, it is checked whether the timer 1 is counting up (S90-4).
4) If not counting up, return; if counting up, stop timer 1 (S90-4)
5). Then, it is checked whether the value of the jogging memory is equal to the value of the jogging counter (S90-4).
6) If not equal, execute the above-described processing from step S90-22. On the other hand, if the value of the jogging memory is equal to the value of the jogging counter, the jogger motor 463 is stopped (S90-47), and the jogger forward flag and the jogger reverse flag are lowered (S90).
-48. , S90-49), and further determines whether the timer 2 has started (S90-50). If the timer 2 has started, the process returns as it is, and if not, the timer 2 is started (S90-
51), set a discharge OK flag (S90-52) and return.

Finally, if the timer 2 has already counted up in the above-mentioned determination in step S90-1, the jog flag is lowered (S90-53), and the timer 1 and the timer 2 are cleared (S90-54). After that, the process from step S90-13 is executed.

It should be noted that the above Step S90-32 or Step S90-38. Checks the rise and fall of the jogger home position sensor 471 for the following reason. That is, FIG.
As shown in FIG. 1, a jogger fence 4 is attached to a jogger home position sensor 471 composed of a photointerrupter.
The jogger home position sensor filler 424 protruding from 72 moves forward and backward, that is, on the reverse side (arrow 4).
The jogger's home position is set to fall (D92 in the drawing) of the home position sensor 471, as shown in the timing chart of FIG. 92.
This is because a deviation in the sensor characteristics occurs between the rise and fall of the sensor, so that the processing is performed so that the fall of the sensor output always becomes the home position from any position in FIGS. 92A92 and B92.

<< 8.3 Switching Wheel Initial Processing >>
Next, the control of the switching wheel 415 will be elaborated.

FIG. 93 is a flow chart showing the initial processing procedure of the switching wheel 47. In this process, first, it is determined whether or not the switching wheel home request flag is set (S93-1). Step S93-1
If the flag is not set, the routine returns. If the flag is set, it is checked whether the switching wheel 477 is rotating forward (S93-2). If not, the switching wheel 477 is rotated forward (S93-3), the drive pulse counter is reset (S93-4), and the routine returns. The drive pulse counter indicates the position of the switching wheel 477, and "0" is the home position. When the switching wheel 477 is driven, it is used together with the drive pulse memory. The driving pulse memory indicates a position at which the switching wheel 477 is driven, and performs the same processing as the jogging counter and the jogging memory.

On the other hand, if the motor is rotating forward, the driving pulse output is turned off (S93-5), and it is checked whether the home position sensor 545 of the switching wheel 477 has risen (S93-6). If not, it is checked whether the drive pulse counter is 0, that is, whether it is reset (S93).
7) If it has been reset, the operation returns as it is; if it has not been reset, the driving pulse counter is advanced by one step and the operation returns.

If it is determined in step S93-6 that the home position sensor 545 has risen, it is checked whether or not the driving pulse counter has become 0, that is, whether or not the driving pulse counter has been reset (step S93-).
9). If reset, 1 is set in the drive pulse counter.
Is substituted (S93-10) and the routine returns. If it has not been reset, the driving pulse counter is set to 1
Check whether it is larger than 50 (S9).
3-11) If it is 150 or less, 1 is substituted for the driving pulse counter (S93-12) and the routine returns. 150
If so, it is checked whether the drive pulse counter is 360 or less (S93-13).
If it is less than 360, the driving pulse output is stopped to stop the rotation of the switching wheel 477 (S93-14), the wheel home request flag is lowered (S93-15), and the driving pulse counter is reset (S93-16), and then the return is made. I do.

On the other hand, if the value of the drive pulse counter is determined to be 360 or more in step S93-13, the drive pulse output is stopped (S93-17), and the drive pulse counter is reset (S93-18). ), A switching wheel rotation abnormality flag is set (S93-19), and the routine proceeds to an abnormality processing routine. The switching wheel rotation abnormality flag is a flag of “1” when the home position cannot be detected even when the switching wheel is driven for a certain number of pulses or more, and is usually a flag of “0”.

<< 8.4 Switching Wheel Driving Process >> When the initial process of the switching wheel 477 ends, the switching wheel 477 can be driven. The processing at this time is shown in FIG.
This will be described with reference to the flowchart of FIG.

In this processing, it is first checked whether or not the initial request flag is set (S94-
1). If the flag is set, the home request flag of the switching wheel 477 is set (S94-2), and it is determined whether the transfer paper transport flag is set (S94-).
3). If it does not stand, the jam of the transfer paper 37 has not occurred, so it is determined whether or not the document jam flag has been set (S94-3). Is performed (S94-5) and the routine returns. Also,
If the jam flag is set in the determinations in steps S94-3 and S94-4, the transfer paper 37 or the original 6
Since the jam of 9 has occurred, the process returns.

If it is determined in step S94-1 that the initial request flag has been lowered, the
The transmission data from the U573 is transmitted to the finisher 11 on the C side.
The data is decoded by the PU 651 (S94-6), and it is determined whether or not the mode reception data is 0 (S94-7). If it is 0, the process returns. If it is not 0, it is further determined whether the mode reception data is 5 or less (S94-8). If the determination in step S94-8 is not 5 or less, the process returns.
If it is 5 or less, the mode execution flag is set (S94-
9), It is determined whether or not the switching wheel 477 is rotating (S94-10). The mode-in-progress flag is a flag transmitted from the CPU 573 of the copying machine and requiring a relatively long time to be set to "1" during the process. If the switching wheel 477 is not rotating, the drive pulse counter data is loaded (S94-11). When the driving pulse counter data is loaded in step S94-11, the data table of the driving pulse counter shown in FIG. 95 is searched from the mode reception data and the driving pulse counter data. The pulse data for moving the switching wheel 477 in this data table is set such that one pulse of the stepping motor corresponds to one time of the switching wheel 477. Further, [a] to [d] in FIG. 95 correspond to the states (a) to (d) of the switching wheel 477 shown in FIG. The position of the switching wheel 477 in FIG.
(B) shows the case where the original 69 is conveyed to the proof tray 59, and FIG. (C) shows the case where the copied transfer paper 37 is stored in the sheet storage bin 57. d) shows a case where the copied transfer paper 37 is stored in the blue tray 59, respectively.

When the search is completed in step S94-12, the data in the data table is stored in the drive pulse memory (S94-13), and the rotation of the switching wheel drive motor 487 composed of a stepping motor is started according to the drive pulse memory (S94). -14). Thereafter, it is checked whether the switching wheel 477 is rotating forward (S94).
-15) If it is rotating forward, add 1 to the drive pulse counter and return (S94-16). If not rotating, check if the switching wheel 477 is rotating in reverse (S94-17), and If it is rotating, 1 is subtracted from the drive pulse counter and the routine returns.

If the switching wheel 477 is rotating in the judgment of the step S94-10, it is checked whether or not the value of the drive pulse counter is equal to the value of the drive pulse memory (S94-19). Step S
Steps 94-15 and subsequent steps are executed, and if they are equal, the rotation of the switching wheel 477 is stopped (S94-20), that is, the driving pulse output is turned off. Subsequently, the mode execution flag is lowered (S94-21), the drive pulse memory is cleared (S94-22), and the routine returns.

<< 8.5 Up / Down Check of Sheet Storage Bin >> The sheet storage bin 57 for storing sheets such as the transfer paper 37 and the original 69 is a sheet storage bin 5
When accepting on the 7 side, when stapling the sheet,
When the sheet is discharged to the stack tray 67, it is necessary to move the sheet up and down. This is because the finisher 11 according to the present embodiment does not fix the sheet storage bin 57 to perform the sheet processing, but moves the sheet storage bin 57 to perform various sheet processing as can be understood from the above description of the mechanical configuration. Because it is intended to do so. Therefore,
Hereinafter, the processing related to the elevation of the sheet storage bin 57 will be described.

FIG. 97 is a flowchart showing a routine for checking whether the sheet storage bin 57 is to be raised or lowered in response to a command from the copy block. In this process, first, when "1" is set in the copying machine 1, it is checked whether or not a bin movement flag for performing a process of matching the bin position counter with the bin position data is set (S97-).
1) If the bin movement flag has been lowered, the process returns as it is, and if it is standing, the CPU 651 of the finisher 11 receives data related to bin control transmitted from the CPU 573 of the copying machine body (S97-2). The bin position counter is a counter that indicates the bin position currently set by the finisher 11. If the data is received, it is checked whether or not a bin home request flag indicating that the sheet storage bin 57 is to be moved to the home position is set (S97-3). It is checked whether the down flag is set (S97-4). The state where the bin home request flag is set indicates a state where the sheet storage bin 57 is returned to the home position. Step S9
If it is determined in step 7-4 that the bin home request flag is set, it is checked whether the bin raising flag for raising the sheet storage bin 57 by one bin is set (S).
97-5) Since the bin is rising when standing, the bin position counter indicating the bin position of the finisher 11 currently set must be set to the finisher 1 which must be set.
Compare with the bin position data indicating the bin position of No. 1 (S9).
7-6). If the value of the bin position counter is smaller than the value of the bin position data in the judgment of step S97-6, the bin raising flag is set, and the bin lowering flag for lowering the sheet storage bin 57 by one bin is lowered (S97-7). To return. If the value of the bin position counter is equal to or larger than the value of the bin position data in the judgment of step S97-6, both the bin rising flag and the bin falling flag are lowered (S97-
8, S97-9) Return.

If it is determined in step S97-5 that the bin rising flag has been lowered, it is checked whether the bin position counter is set to 1 (S97-10). If the bin position counter has become 1, the step S97-
8. And executing step S97-9 and returning;
If it is not 1, the bin raising flag is lowered, the bin lowering flag is set (S97-11), and the routine returns.

If the bin raising / lowering flag is determined to be down in step S97-4, it is checked whether the value of the bin position count is 0 (S97-12), and if it is 1, the bin raising flag is set. Return (S97-13), and if it is not 1, lower the bin lowering flag (S97-
14) Return.

<8.6 Control of Up / Down of Sheet Storage Bin> When the above check routine ends, the operation of raising and lowering the sheet storage bin 5T is actually performed. The processing procedure in this case is shown in the flowchart of FIG. In this process, first, it is determined whether or not the stapling execution flag which becomes “1” is set during execution of the stapling operation including the movement of the stapler 65 (S98-1). It is determined whether the bin home request flag is set (S98-
2). If the bin home request flag has been set down in step S98-2, it is determined whether or not the paper discharge OK flag has been set (S98-3). This sheet discharge flag is set to “1” when the sheet conveyed from the copying machine 1 and the document conveying unit is discharged through the discharge detection sensor 542.
Becomes “0” due to the movement of the sheet storage bin 57 or the like.
Is a flag that becomes If it is determined in step S98-3 that the discharge OK flag is set, the process returns. If it is set, it is determined whether the bin movement flag is set.
4). If it is descended, the process returns. If it is standing, it is determined whether a stapler home position request flag for returning the stapler 65 to the home position (set to "1" while returning to the home position) is set (S98-5). ). If it is standing, it returns. If it is down, it returns to the home position. It is determined whether or not the falling home return flag ("1" while returning to the home position) is set (S98).
-6). If it is standing, it returns, and if it is down, it is determined whether or not the bin rising flag is further standing (S98).
7).

If it is determined in step S98-7 that the bin rising flag is down, it is determined whether the bin down flag is down (S98-8). If the bin lowering flag is down, the movement of the sheet storage bin 57 is stopped (S98-9), the discharge OK flag is lowered, and the process returns (S98-10). If the bin lowering flag is set in the judgment in step S98-8, the bin is lowered by one bin (S98-11), and the bin position counter is decremented by one (S98-11).
98-12) Clear the discharge 0K flag (S98-1)
3) Return.

On the other hand, if the bin raising flag is set in the judgment at the step S98-7, the bin is raised by one bin (S98
-14), 1 is added to the bin position counter (S98-1).
5), the discharge OK flag is lowered (S98-16), and the process returns.

If the bin home request flag is set in step S98-2, it is determined whether or not the stapler home request flag is set (S98-17).
If it has descended, it is determined whether or not the home return flag has been set (S98-18). If the home return flag is set in this judgment, the process returns. If the home return flag is lowered, the bin motor 418 is turned ON to lower the sheet storage bin 57 (S98-19).

Next, the sheet storage bin 57 is lowered to determine whether or not the bin home position sensor 543 is ON (S98-20). If the bin home position sensor 543 is OFF in this determination, the process returns. If ON, the bin motor 418 is turned OFF to stop the movement of the sheet storage bin 57 (S98-21), and the bin position counter is reset (S98-). 22) Then, lower the bin home request flag (S98-23)
To return.

8.7 Stapler Movement Processing The stapling operation is executed in accordance with the movement of the sheet storage bin 57. To execute the stapling operation, the stapler 65 needs to be advanced from the home position to the staple position. . For this reason, a stapler moving process is required.

FIG. 99 is a flow chart showing the stapler movement process. In this process, first, it is determined whether or not the stepper home request flag is set (S99-1). If the stapler home request flag has been lowered in this determination, the state of the staple abnormality 1 flag ("1" at the stapler needle end, usually "0") indicating the presence or absence of the stapler 65 is determined (S99-).
2). If the staple abnormality 1 flag is set in this determination, the process returns as it is. If the staple abnormality 1 flag is set down, it is determined whether a staple abnormality 2 flag indicating an abnormality of a staple motor (not shown) is set. If the stapler abnormality 2 flag is set, the routine returns. If the stapler abnormality flag is down, the stapler 65 has no abnormality. It is determined whether it is located (S99-4). If the value of the counter is not 0 in this determination, it is further determined whether or not the value of the stapler position counter is 50 (S99-5). If the value of the counter is 50, the stapler reverse flag for returning the stapler to the home position (reverse side) To “1” when moving to
99-6) Further, the stapler forward flag ("1" when moving to the forward side, "0" during normal operation) that causes the stapler 65 to protrude from the home position to the stapling position is lowered (S99-7), and the routine returns.

If it is determined in step S99-5 that the value of the stapler position counter is not 50, it is determined whether the stapler reverse flag and the stapler forward flag are set (S99-8). In this judgment, if both flags are up, return is performed, and if down, the stapler home request flag is lowered (S99-
9) Return. If the stapler position counter is 0 in the judgment in the step S99-4, the step S9 is executed.
The processing after 9-9 is executed.

On the other hand, if the stapler home request flag has been set in step S99-1, it is further determined whether or not the staple home position sensor 429 is ON (S99-10). If it is OFF in this determination, the stapler reverse flag is set, and the stapler forward flag is lowered (S99).
-14) Return. If it is ON, the stapler home request flag is lowered (S99-1).
1), the stapler reverse flag and the stapler forward flag are lowered (S99-12), the stapler position counter is reset (S99-13), and the routine returns.

<< 8.8 Stapling Processing >> The stapling processing executed in accordance with the movement of the stapler is performed according to the processing procedure shown in FIG.

In this processing, first, it is determined whether or not a jogger ready flag indicating that the jogger 63 has been set at the designated jogging position is set (S10).
0-1). If it is determined that the jogger ready flag is down, the process returns as it is, and if it is standing, the staple abnormality 1 flag and the staple abnormality 2 flag are checked (S100-2, S100-3). If the staple abnormality 1 flag or the staple abnormality 2 flag is set, the process proceeds to the abnormality processing routine. If both flags are lowered, it is determined whether the sheet storage bin 57 is moving (S100-4). If it is determined that the sheet storage bin 57 is moving, the process returns. If not, it is determined whether or not the sheet discharge OK flag is set (S100).
-5). If the sheet discharge OK flag is set in this determination, the process returns. If it is lowered, the state of the return flag is determined (S100-6). If the return flag is set, the process returns. If the return flag is set, the status of the stapler home request flag is determined (S100-7). If the stapler home request flag is set, the process returns. If the stapler home request flag is set, the status of the staple flag is checked (S100-8). This staple flag is the CPU 573 of the copying machine 1 main body.
This is a flag for executing the stapling operation with "1" transmitted from. If the staple flag is set, the process returns. If the staple flag is set down, it is determined whether the stapling flag is set to "1" during execution of the stapling operation including the movement of the stapler 65 (S100-9).
If the stapling-in-progress flag has been lowered in this judgment, it means that stapling has not been performed, so the stapler forward flag is set, the stapler 65 is moved to the stapling position (S100-10), and stapling is performed on the sheet. (S100-11). Then, a stapling execution flag is set (S100-12), the jogger fence 472 is jogged (S100-13), and the process returns.

On the other hand, if it is determined in step S100-9 that stapling is being performed, it is further determined whether or not stapling has been completed (S100-14). If completed, set the stapler reverse flag and stapler 6
5 from the staple position (S100-1).
5). Then, the jogger fence 472 is jogged (S100-16), the staple executing flag is lowered (S100-17), and the process returns.

<< 8.9 Sheet Dropping Process >> When the stapling of the sheet is executed, the sheet dropping process is executed according to the set mode. FIG. 101 is a flowchart showing the procedure of the sheet dropping process. In this sheet dropping process, first, the state of the dropping home return flag is determined (S101-1). If the home return flag is lowered by this judgment,
The status of the staple abnormality 1 flag (S101-2), the staple abnormality 2 flag (S101-3), and the staple flag (S101-4) are determined. And step S
If the corresponding flag is down in any of 101-2, S101-3 or S101-4, the process returns. If all the relevant flags are up, it is determined whether or not a sheet is stored in the sheet storage bin 57 ( S101-5).
If a sheet exists in this determination, it is further determined whether or not the sheet storage bin 57 is moving (S101-).
6). If it is moving, the process returns. If it is not moving, the status of the staple executing flag is determined (S10).
1-7). If it is determined that the staple-in-progress flag is set, the process returns.
Is determined (S101-8). If the mode reception data is 6 in this determination, a dropping process for dropping the stapled sheet onto the stack tray 67 is executed (S101-9), and the process returns.

On the other hand, if it is determined in step 101-1 that the dropping roll home return flag is set, a dropping roll reverse flag indicating that the dropping roll moves away from the sheet storage bin 57 is set ( S
101-11), a dropping roller forward flag indicating that the dropping roller falls down to the sheet storage bin 57, that is, moves to the dropping operation side is lowered (S101-12), and it is determined whether the home position sensor 438 during the dropping roller standby is ON. A determination is made (S101-13).

If it is determined in step S101-13 that the home position sensor 438 is in the standby state, the process returns if the home position sensor 438 is OFF. If the home position sensor 438 is ON, the reverse flag is lowered (S101-14). The drop counters indicating the positions of the drop rollers 431 and 433 are reset (S101-
15). Thereafter, the downturn home return flag ("1" during the downturn return operation) for returning the downsides 431 and 433 to the home position is lowered (S101-1).
Return to 6).

If it is determined in step S101-5 that there is no sheet in the sheet storage bin 57, the roller drive motor 441 is turned off (S103).
-4) Stop and clear the 5-second timer (S103-
5). Then, the dropping roller forward flag and the dropping roller reverse flag are lowered (S103-6, S10).
3-7), a home return flag and a mode end flag are set (S103-8, S103-).
9). Next, the 1-second timer is stopped and cleared (S103).
−10), home position sensor 4 waiting for dropping
The state of 38 is determined (S101-10). With this judgment, the home position sensor 438 is turned off while the roller is waiting to be returned.
If so, the processing after step S101-11 is executed, and
If N, steps S101-11 to S10
The processing of 1-13 is jumped to step S101-14.
Execute the following processing.

FIG. 102 is a flowchart showing a processing procedure during the execution of dropping a stapled sheet. In this process, first, the state of the dropping-inside forward flag is determined (S102-1), and if this flag is down, the state of the dropping-down reverse flag is determined this time (S1).
02-2). If it is determined in this determination that the reverse roller flag is down, the drive motor 441 is checked (S102-3). If the dropper drive motor 44
If 1 is in the OFF state, the drop-down drive motor 44
1 is turned on (S102-4), the loop counter is reset (S102-5), and the routine returns. The loop counter is a counter that counts the number of times the rollers have been protruded and retreated, and this count is performed six times per sheet. If the sheet still does not reach the sheet discharge sensor, a jam occurs. On the other hand, the drive motor 441 is
If the state is N, the dropping-off flag is set (S102-6), and the dropping-down reverse flag is lowered (S102-17).
It is determined whether or not the number is equal to or greater than the pulse (S102-
9). If the drop counter is greater than or equal to 120 pulses in this determination, the drop flag forward flag is lowered (S102-10), and the sheet discharge sensor 545 is further released.
Is determined (S102-11). If the sheet release sensor 545 is OFF in this determination, it is determined whether or not the one-second timer has been started (S102-12), and if not, it is started (S102-13).
To return.

On the other hand, if the one second timer has started,
It is checked whether the one-second timer has counted up (S102-14), and if it has counted up, the process returns. If not, a reverse flag is set (S102-15). Then, the drop-down counter is decremented in accordance with the drop-down drive pulse (S102-16).
It is determined whether the value is 0 or less (S102-1).
7). If the value is larger than 80, the process returns. If the value is 80 or less, the reverse flag is lowered (S10).
2-18), 1 is added to the loop counter (S102-).
19). Next, it is checked whether the value of the loop counter is 6 or more (S102-20), and if it is less than 6, the 1-second timer is stopped and cleared (S102-21).
Return later. If it is 6 or more, the flow shifts to the flowchart of FIG. 103 to lower the down-rolling forward flag and the down-rolling reverse flag (S103-12, S1).
03-13). Note that this 6 means the sixth sheet dropping operation for one sheet. Next, the dropping roller drive motor 441 is turned off (S103-1).
4) The 5-second timer and the 1-second timer are each stopped and cleared (S103-15, S103-16), and the sheet discharge jam flag is set (S103-17), and the process proceeds to the abnormality processing routine. The sheet discharge jam flag is a flag that becomes “1” when the stapled sheet does not fall on the stack tray 67.

If it is determined in step S102-11 that the sheet discharge sensor is ON,
The process proceeds to the flowchart of 3, and it is determined whether the 5-second timer has started (S103-1). If not, start the 5-second timer (S103-
2) Return, and if it has started, check whether the sheet ejection sensor has fallen (S10).
3-3). If it has fallen, the aforementioned step S
The processing after 103-4 is executed, and if it has not fallen, it is determined whether or not the 5-second timer has counted up (S103-11). If it is determined that the timer has not counted up for 5 seconds, the process returns. If the timer has counted up, the process from step S103-12 is executed.

If it is determined in step S102-2 that the downside-down reverse flag is set, it is determined whether the sheet discharge sensor 545 is set down (S103-21). If the sheet ejection sensor 545 has fallen in this determination, the above-described step S1 is performed.
03-4 and subsequent processes are executed, and the sheet ejection sensor 545 is executed.
If has not fallen, the processing after step S102-16 is executed. If it is determined in step S102-1 that the dropping forward flag is set, the process from step S102-6 is executed.

[9. Original processing control] Transfer paper 3
7 and the control of the post-processing of the original 69 have been described. The document processing control for feeding and processing the document 69 according to the plurality of input mode settings will now be described in detail. The timing of setting, feeding, and discharging the original 69 is based on the timing chart of FIG.

<< 9.1 Initial Processing >> As the initial processing, the door open check of the document reversing unit, the option connection check for the document conveying unit, the bin home request processing in the multi-stage unit, the lifting of the conveying section (pressing plate) of the document conveying unit. There are up check and initial jam check.

Checking of Door Opening of Document Reversing Unit 52 First, a check is made regarding opening of a door in the document feeder, that is, in the document transport system 9 in this embodiment. FIG. 105 is a flowchart showing the procedure of a door open check process.

In this process, the state of the document reversing unit connection flag (“1” when connected, and “0” when not connected) indicating whether the document reversing unit 52 is connected to the document transport unit 51 is set. Judge (S105)
-1). If the document reversing unit connection flag is not set in this determination, the process is resumed. If the document reversing unit connection flag is set up, it is determined whether or not the door of the document reversing unit 51 is open. −
3) Set the document reversing unit door open flag (S
105-4) Further, the original reversing jam flag and the original reversing unit door open flag are transmitted as serial data to the CPU 573 of the copying machine main body, respectively.
To return. If it is determined in step S105-2 that the document reversing unit door is closed, the document reversing unit door open flag is lowered (S105-6), the flag is transmitted to the CPU 573, and the process returns.

The document reversing unit jam flag is a flag for the first entry detection sensor 370 and the second entry detection sensor 368 of the document in the document reversing unit 52, and the document reversing unit door open flag is This flag is “1” when the door of the reversing unit is open and “0” when the door is closed.

Optional Connection Check for Document Conveying Unit 51 The document feeding unit 51 is optionally connected to the document stack tray 353, the multi-stage unit 50, and the like. Check if is connected. This processing procedure is shown in the flowchart of FIG.

In this processing, first, the port mode and the RAM are cleared, and an initialization subroutine for resetting a flag and a counter is executed to perform initialization (S106-1). Next, it is determined whether or not the document reversing unit 52 is connected (S106-2). This determination is made by using the input port of the gate array 605 on the document transport unit 51 side and checking the level of the input port. In this case, the level is "L" level when connected, and "H" level when not connected. Therefore, step S
If it is determined in step 106-2 that the document reversing unit 52 is connected, the document reversing unit connection flag is set (S106-3), and if not, the document reversing unit connection flag is lowered (S106-3). S106-
4), it is determined whether or not the multi-stage unit 50 is connected (S106-5). The connection of the multi-stage unit 50 is performed in the same manner as the connection of the document reversing unit 52.

If it is determined in step S106-5 that the multi-stage unit 50 is connected, the multi-stage unit connection flag is set (S106-6), and if not, the multi-stage unit connection flag is lowered (S106-7). The reversing unit connection flag and the multi-stage unit connection flag are transmitted as serial data to the CPU 573 side of the copying machine body (S106-8). The multi-stage unit connection flag indicates the connection state of the multi-stage unit 50 to the document transport unit 51, and is “1” when the multi-stage unit 50 is connected to the document transport unit 51, and “0” when the multi-stage unit 50 is not connected. Become. Needless to say, in this embodiment, the multi-stage ADF 49 includes a multi-stage unit 50 and a document transport unit 51.

When the processing in step S106-8 ends, it is checked whether or not there is a transmission error (S106-
9) If there is no error, return. If there is an error, execute the transmission error processing routine (S106-10) and return.

Bin Home Request Processing in Multi-Stage Unit This processing is a document bin 201 for feeding the document 69.
Is returned to the home position to determine the initial position. This processing procedure is shown in the flowchart of FIG.

In this processing, first, the state of the bin home request flag is determined (107-1). The bin home request flag means that when the bin home request flag of the copying machine main body becomes "1", the CPU 601 of the document conveying unit 51 receives this and sets the bin home request flag to "1", that is, sets the bin home request flag. The document bin 201 is moved to the home position, and when the document bin 201 is moved to the home position, the flag is lowered and transmitted to the CPU 573 side of the copying machine main body. If the bin home request flag is set in step S107-1, the state of the bottom plate home position sensor 251 is determined (S107-2). If the bottom plate home position sensor 251 is OFF in this determination, the bottom plate raising motor 241 is rotated in the reverse direction, the bottom plate 211 is lowered (S107-3), and the process returns. Bottom slope motor 24
1 is turned off to stop the bottom plate 211 at the home position (S107-4). Next, the tip detection sensor 2
43 to determine whether there is any remaining paper (S107-
5) If there is remaining paper, a paper jam flag is set in the flowchart of FIG. 108 (S108-15), and the routine from step S108-1 onward described below is executed. It is determined whether there is any remaining paper (S107-6). If there is any remaining in this determination, the same process is performed in step S1 in the flowchart of FIG.
The routine after 08-15 is executed, and if there is no remaining sheet, the state of the bin home sensor 222 is checked (S107-
7) If the bin home sensor 222 is ON, the reverse rotation of the wheel motor 231 is stopped and the bin 2
01 at the home position (S107-
8). Then, the bin switching solenoid 240 is turned off (S107-9), and the paper jam flag of the document transport unit 51 is lowered (S107-10). This paper feed jam flag is a jam flag for the leading end detection sensor 243 and the registration detection sensor 245, and is normally “0” and “1” at the time of a jam.

When the paper jam flag is cleared in step S107-10, the bin counter (DF
The bin counter) and the bin counter memory (DF bin counter memory) are reset (S107-11). The DF bin counter is a counter that indicates the position of each document bin 201 of the above-described five-stage multi-stage unit 50, and the count has the following meaning.

0: All 5 bins are located at the lower bin home position.

1: Job processing for the first bin, ie, the top bin, and moving processing for that bin.

2: At the time of job processing of the second bin, and the movement processing of that bin.

3: At the time of job processing of the third bin and the movement processing of that bin.

4: At the time of job processing of the fourth bin and the movement processing of that bin.

5: At the time of job processing of the fifth bin, ie, the bottom bin, and the moving processing of that bin.

The DF bin counter memory is for storing the DF bin counter at the time of interrupt processing and at the time of reservation mode processing.

Upon completion of the process in step S107-11, a bin rising flag is set (S107-S12).
The bin home request flag is lowered (S107-1)
3), execute a subroutine of initial jam check (S107-14) and return.

On the other hand, if it is determined in step S107-7 that the bin home sensor 222 is OFF, the rotation of the wheel motor 231 is checked (S107-1).
5). If it is determined in step S1077-15 that the wheel motor 231 is rotating in the reverse direction, the process returns. If the wheel motor 231 is rotating in the forward direction, the state of the wheel standby home position sensor 253 is checked (S107-16). If the wheel standby home position sensor 253 is OFF in the check, the wheel motor 231 is rotated forward to move the Geneva wheel 207 to the wheel standby home position (S107-17), and if ON, the wheel motor 231 is turned off. Stop the forward rotation and set the Geneva wheel 20
7 at the wheel standby home position (S1
07-18). Thereafter, the bin switching solenoid is turned ON (S107-19), the wheel motor 231 is rotated in the reverse direction to lower the document bin 201, and the routine returns.

Lift-Up Check and Initial Jam Check of the Transport Unit of the Document Transport Unit FIG. 108 is a flowchart showing the processing job of the lift-up check and the initial jam check of the transport unit of the document transport unit. In this check routine,
First, it is determined whether the transport unit of the document transport unit (hereinafter also referred to as DF) is lifted up, in other words, whether the pressure plate 288 is open (S108-).
1) If not lifted, the DF lift-up flag is lowered (S108-2).
At 22, it is checked whether there is any remaining paper (S108-3). If the original 69 remains at the sensor position, an inverted jam flag (normally "0", normally "1" at the time of jam) is set as a jam flag for detection before the paper ejection sensors 321 and 322 are inverted (S108-). 4) If it does not remain, the first
The original 69 is detected by the second entry detection sensors 370 and 368.
It is determined whether or not remains (S108-5). If it is determined in step S108-1 that the pressure plate 288 has been lifted up, the reverse jam flag is lowered (S10).
8-108-6), an ADF lift-up flag ("1" if the DF pressure plate is lifted, and "0" if the DF pressure plate is closed) is set (S108-7). Turns the reverse solenoid 316 off
Then, the size data and the counter are cleared (S10
8-8) Proceed to step S108-5.

In step S108-5, the first or second original entering sensor 370, 368 outputs the original 69.
Is left, the document reversal jam flag is set (S108
-9) If there is no remaining document, the original sheet discharge sensor 32
1, 322 to determine whether or not there is a paper discharge. If the original discharge sensors 321 and 322 are turned on, the original 69 remains in the discharge section, and the original reverse jam flag is set (S1).
08-11), if it is OFF, it is determined whether or not the document 69 is present on the document stack tray 382 (S11).
108-12). If the document 69 is present, the stack tray paper end sensor 376 detects the document, and sets a remaining paper check flag to “1” when remaining paper is present in the document stack tray 382 and to “0” when no remaining paper is present (S
If not, the respective flags are transmitted to the CPU 573 of the copier body as it is (S108-14), and the process returns.

If the process has proceeded from step S107-5 or step S107-6 in the flowchart of FIG. 107 as an initial jam check routine, a paper jam flag is set (S108-15).
After that, the processing after step S108-1 is executed.

<< 9.2 Movement of Original Bin >> The five original bins 20 corresponding to the job determined by the copying machine main body side.
1 is selected or moved. The processing related to the selection and movement of the document bin 201 includes bin number data input processing of the multi-stage unit, bin moving processing based on data received from the copying machine body, bin raising processing, and bin lowering processing.

Hereinafter, each case will be described in detail.

Bin Number Data Input Processing of Multi-Stage Unit FIG. 109 is a flowchart showing a processing procedure regarding bin number data input of a multi-stage unit. In this processing, first, the state of the multi-stage unit connection flag is determined in order to confirm the connection state of the multi-stage unit 50 (S109-1). If the multi-stage unit connection flag is down, dummy data is output and the process returns. If the user stands, the data transmitted from the CPU 573 of the copying machine is decoded (S
109-2). When the transmitted data is decoded, it is checked whether the copy mode received data is 0 (S109-3). If it is 0, the process returns as it is. If it is not 0, it is checked whether the copy mode received data is 5 or less (S109).
-4). Therefore, if the value is larger than 5, the process returns. If the value is 5 or less, the document bin 201 corresponding to the mode reception data is set at the sheet feeding home position (S109-5), and the process returns. The number "5" in the copy mode received data, which is the judgment criterion in step S109-4, comes from the fact that the multi-stage unit 50 has five stages. Therefore, it goes without saying that the difference will be different if the multi-stage ADF 49 has a different floor.

Bin Movement Processing Based on Received Data from Copying Machine Main Body FIG. 110 is a flowchart showing processing for bin movement based on data received from the copying machine main body. In this process, the state of the tweezer end flag is checked (S110-1). Bin set end flag is the bin 2 for the original from the standby home position to the paper feed home position.
A flag indicating whether 01 has been set. The flag is "1" when set, and "0" when not set. If the bin set end flag is set in this step S110-1, since the sheet is set at the paper feeding home position in the original bin 201, the flow returns as it is. It is stored in the memory (S110-2). Then, the status of the bin home request flag is checked (S110-3). If the bin home request flag is raised, the process returns as it is. If the bin home request flag is lowered, the status of the wheel standby home position sensor 257 is checked (S110-4). . The bin home request flag is received by the DF side when the bin home request flag on the copying machine main body becomes "1", and the binge home request flag on the DF side is set to "1" to return to the home position of the document bin 201. Is a flag for executing the return.

If it is determined in step S110-4 that the Geneva wheel 207 is not at the standby home position, the bin home request flag is set down (S110).
110-5) Return and determine whether the value of the DF bin counter is equal to the value of the request bin memory (S11).
0-6). If both are equal in this judgment, bin 2 for the original
Then, a subroutine for moving 01 to the sheet feeding position, that is, the sheet feeding home position is executed (S110-10), and if it is not equal, then it is determined whether the value of the DF bin counter is larger than the value of the request bin memory. (S110-7). If the value of the DF bin counter is equal to or smaller than the value of the request bin memory, the DF bin raising subroutine described later is executed to raise the document bin 201 (S110-8), and the value of the DF bin counter is stored in the request bin memory. If the value is larger than the value, the DF bin lowering process subroutine described later is executed to lower the original bin 201 (S110-9), and the above-mentioned step S110-10 is performed.
After executing the sub-reaching, return.

Bin Elevation Process The contents of the subroutine of the bin elevation process in step S110-8 are as shown in the flowchart of FIG. In this process, first, it is checked whether the value of the DF bin counter is equal to the number of bins stored in the request bin memory (S111-1). If they are the same, a standby set end flag is set and the process returns (S111-
2). The standby set end flag is defined as C on the copying machine main body side.
This flag is set to “1” when the movement is completed by the number of bins transmitted from the PU 573 and the original bin 201 specified by the standby home position sensor 257 is set. On the other hand, if it is determined in step S111-1 that the value of the DF bin counter is not equal to the number of bins stored in the request bin memory, the wheel motor 231 is rotated forward to raise the document bin 201 (S111-
3) Check whether timers 1 and 2 have started (S111-4). If timers 1 and 2 have not started, start both timers (S111-5) and return. If the timers 1 and 2 have started, it is checked whether the timer 1 has counted up (S111-
6), return if not counted up, standby home position sensor 25 if counted up
7 is checked (S111-7). If the standby home position sensor 257 is ON in this check, the forward rotation of the wheel motor 231 is stopped and stopped at the standby home position (S111-8), and the DF bin counter is incremented by 1 (S111-9). Timers 1, 2
Are stopped and cleared (S111-10), and the process returns.

On the other hand, if the standby home position sensor 257 is in the OFF state in the check in step S111-7, it is checked whether the timer 2 has counted up. If the count has not been counted up, the process directly returns. If the count has been counted up, the rotation of the wheel motor 231 is stopped to stop the movement of the document bin 201 (S111-12). Next, timers 1 and 2
Is stopped and cleared (S111-13), a bin abnormality flag is set (S111-14), and the routine proceeds to an abnormality processing routine. The bin abnormal flag is a flag of “1” when there is an abnormality in the movement operation of the original bin 201, and is usually a flag of “0”.

Bin Lowering Process The contents of the subroutine of the DF bin lowering process in step S110-9 are as shown in the flowchart of FIG. In this process, first, the bin switching solenoid 240
Is turned on (S112-1), and it is determined whether the value of the DF bin counter is equal to the value of the request bin memory (S112).
112-2). If the two values are equal in this determination, a standby set end flag is set (S112-3), and the routine returns.
If the values are not equal, the wheel motor 231 is rotated in the reverse direction to lower the document bin 201 (S112-
4). Next, it is checked whether the timers 1 and 2 have been started (S112-5). If not started, the timers 1 and 2 are started (S112-6) and the routine returns. If the timers 1 and 2 have started, it is checked whether the timer 1 has counted up (S11).
2-7), return if not counting up,
If the count has been increased, the state of the standby home position sensor 257 is checked (S112-8). If the standby home position sensor 253 is ON in the check in step S112-8, the reverse rotation of the wheel motor 231 is stopped, and the document bin 201 is stopped at the standby home position (S112-9). Then, the DF bin counter is decremented by 1 (S112-10), the timers 1 and 2 are stopped and cleared (S112-11), and then the process returns.

On the other hand, if the standby home position sensor 257 is OFF in the check in step S112-8,
It is checked whether the timer 2 has counted up (S112-12). If the timer 2 has not counted up, the process directly returns. If the timer 2 has counted up, the reverse rotation of the wheel motor 231 is stopped and the movement of the document bin 201 is stopped (S112-13). Thereafter, the timers 1 and 2 are stopped and cleared (S112-1).
4), a bin error flag is set, and the process proceeds to an error processing routine.

<< 9.3 Document Bin Feeding Position Set >> In order to process a document stored in the document bin 201 in accordance with the input mode, the document bin to be processed in that mode is stored in the document bin 201. It is necessary to move the bin 201 to the original feeding position and set it. The processing procedure of this processing is shown in the flowcharts of FIGS. 113 and 114.

In the processing procedure shown in FIG. 113, first, it is determined whether or not the standby set end flag is set (S
113-1). If the standby set end flag has been lowered in this determination, the process returns as it is, and if it is standing, the state of the bin switching solenoid 240 is checked (S113-).
2). If the bin switching solenoid 240 is in the ON state, the bin switching solenoid is turned OFF (S
113-3) Return. Bin switching solenoid 240
Is already OFF, the wheel motor 231 is rotated in the reverse direction to move the document bin 201 to the sheet feeding position (S
113-4), it is determined whether or not the timer 3 has started (S113-5). If the timer 3 has not started, the timer 3 is started (S113-6), and if it has started, it is checked whether or not the timer 3 has counted up (S113-).
7). If the timer 3 has counted up, the reverse rotation of the wheel motor 231 is stopped (S113-8), the timer 3 is stopped and cleared (S113-9), and then a bin abnormal flag is set (S113-10). To return.

On the other hand, if the timer 3 has not counted up in the check in step S113-7, the state of the sheet feeding home position sensor 259 is checked (S113).
-11). In this check, if the sheet feeding home position sensor 259 is OFF, the process returns. If ON, the reverse rotation of the wheel motor 231 is stopped, and the document bin 2 is stopped.
01 at the paper feed home position (S113-1)
2). Next, the timer 3 is stopped and cleared (S113-
13), the waiting set end flag is lowered (S113-1).
4), the bin set end flag is set (S113-1)
5) Then return.

In the processing procedure shown in FIG. 114, it is first checked whether or not there is a document jam, and the processing is started (S114-1). In step S114-1, original 6
If it determines that 9 is jammed, it returns as it is,
If there is no jam, the state of the bin set end flag is checked (S114-2). If the bin set end flag is down, return is made. If it is up, the data of the DF bin counter is stored in the bin position data of the multi-stage unit 50. Yes (S1
14-3). Then, the bottom slope upper limit (ascent detection) sensor 26
The state of No. 3 is checked (S114-4). If the elevation detection sensor 263 is OFF in this check, the bottom plate elevation motor 241 is rotated forward to raise the bottom plate 211 (S1).
14-5) Return, and if the rise detection sensor 263 is ON, the bottom plate rise motor 241 is stopped to stop the bottom plate 211 (S114-6). Next, the state of the document set detection sensor 249 is checked (S114-7), and the document 69 is checked.
Is detected, the document set flag is set (S114-
8) If the original 69 is not detected, the original set flag is lowered (S114-9), and each flag is transmitted to the CPU 573 side of the copying machine main body (S114-10), and the process returns.

(9.4 Feed-in Process) The feed-in process is a process in which a document feed signal is input from the CPU 573 side of the copying machine main body to start transporting the document 69 to the document transport unit 51 side. Specifically, the processing is executed according to the processing procedure according to the flowchart of FIG.

In this process, first, the state of the paper feed jam flag is checked (S115-1). If the paper feed jam flag is set, the document 69 has jammed in the multi-stage unit 50, so Flag the CP of the copier body
The packet is transmitted to the U573 side (S115-2), and is transmitted to FIG.
After the subroutine of the paper jam check shown in the flowchart of (1) is executed (S115-4), the process returns.
On the other hand, if the paper jam flag has been lowered, no jam has occurred, so the state of the document set flag is checked next (S115-4). The document set flag is a flag indicating whether there is a document 69 on the document bin 201, and is "1" if there is a document, and "0" if there is no document. If the document set flag has been lowered in the check in step S115-4, the process returns. If the document set flag is standing, the data transmitted from the CPU 573 of the copying machine body is decoded (S115-5). Further, the CPU 573 transmits a document feed flag and checks whether the document feed flag is set (S115-6). This step S11
If the document feed flag is lowered in the check in 5-6, the process returns. If the document feed flag is standing, the status of the document double-sided flag is checked (S115-6). If the document double-sided flag is set, the document is a double-sided document, so a subroutine for double-sided document feed processing is executed (S115-8). (S115-9). After executing one of the subroutines, the state of the paper jam flag is checked (S115-10). If the paper jam flag has been lowered in this check, the copy start flag is set (S115-11), and the copy start flag and the document size data are transmitted to the CPU 573 side of the copying machine main body (S115-12), and the process returns. On the other hand, if the paper jam flag is set in step S115-10, step S115-2 and step S115-2 are executed.
The process of step 115-3 is executed, and the process returns.

<< 9.5 Feeding Jam Check Processing >> This processing is performed when the document 69 is fed-in and a paper jam occurs in order to improve the removability of the jammed paper.
This is a process for saving 1. The specific processing procedure is shown in the flowchart of FIG.

In this process, first, the original transport unit 51
Is checked (S116-1). If the lift-up is performed, the ADF lift-up flag is set (S116-2), and it is checked whether or not there is any paper at the positions of the registration change sensor 245 and the leading edge detection sensor 243 (S116-3). If there is paper, the process returns. If there is no paper, a paper jam removal flag is set (S1).
16-4) Return. On the other hand, step S116-1
When it is determined that the DF is not in the DF lift-up state, the ADF lift-up flag is lowered (S116-5),
Check the state of the document set flag (S116-
6). In this check, if the document set flag is raised, the bottom slope raising motor 241 is rotated in the reverse direction to lower the eaves plate (S116-7). If the document set flag is lowered, the state of the bottom plate home position sensor 251 is checked as it is. (S116-8). When the bottom plate home position sensor 251 is turned on in this check, the bottom plate raising motor 241 is stopped to stop the bottom plate 211 (S116-
9) The wheel motor 231 is rotated forward (S116).
-10). As a result, the document pin 201 is moved to the standby home position, and the document set flag is lowered (S1).
16-11). And the standby home position sensor 2
Wait until 53 is turned on, and when it is turned on, the forward rotation of the wheel motor 231 is stopped to stop the document bin 201 at the standby home position (S116-1).
2).

After that, the bin set end flag is lowered (S116-14), and the paper jam bin flag is set (S116-15). The paper feed jam bin flag is a flag indicating the end of the movement when the original bin 201 is moved during the paper feed jam in order to improve the jam removal property, and is “1” when the movement is completed, and is usually “0”. is there. After setting the paper jam bin flag in step S116-15 in this way, it is further checked whether the paper jam bin flag is set (S116-16). Confirm (S116-1)
7). When the paper jam removal flag is set, the paper jam flag (S116-18), the paper jam removal flag (S116-19), and the paper jam bin flag (S1).
16-20) are sequentially lowered, an initial jam check is performed (S116-21), and the process returns.

<9.6 Document Discharge Process> The document 69 having been exposed for copying is discharged to any of the document discharge tray 285, the document stack tray 382, the proof tray 59, and the sheet storage bin 57. A predetermined process is executed. This processing includes original discharge processing I, original discharge processing II, initial processing, and switching motor drive processing. Note that the two flowcharts shown in FIGS. 117 and 118, which will be described later, both perform the discharge destination (discharge method) of the original 69 based on the code data from the copying machine side. 127 and 129, and the document discharge process II is a process for selecting the three switching positions I in FIG. The following is an explanation.

Document Discharge Processing I This processing procedure is specifically shown in the flowchart of FIG.

In this process, it is first checked whether or not the paper is being discharged (S117-1). If not, the data from the CPU 573 of the copying machine is decoded (S11).
7-2) If the document is being discharged, it is checked whether the document discharge flag is set as it is (S117-3).
If it is determined in step S117-3 that the document discharge flag is set, the process returns. If the document discharge flag is set, it is checked whether the copy mode received data is between 6 and 9 (S1).
17-4). The received data in step S117-4 is for confirming whether or not the document stack tray is in the discharge mode. If it is determined in this step S117-4 that the copy mode reception data is between 6 and 9, it is further checked whether or not the document reversing unit connection flag is set (S117-5). Is connected, the document reversing unit 52
Check if the door is not open (S117-
6). If it is confirmed that the door is closed, step S
In step 117-7, a subroutine for document discharge processing is executed, and it is further checked whether or not the copy mode received data is 6 or 9 (S117-8). A subroutine for discharging is executed (S117-9). If it is 6 or 9, a subroutine for discharging to the original stack tray 382 after reversal processing is executed (S117-10) and the routine returns.

If the copy mode reception data is not between 6 and 9 in step S117-4, step S1
When the document reversing unit connection flag is lowered at 17-5 and when the door of the document reversing unit 52 is open, the subroutine of the document discharging process of step S117-11 is executed, and the document discharging tray on the DF is executed. After the original 69 has been discharged to 285 (S117-12), the process returns.

The subroutine of steps S117-7 and S117-11 is a process based on the flowcharts of FIGS. 61 to 65, and the subroutine of step S11-9 is a process based on the flowchart of FIG. The subroutine of step S117-10 is a process based on the flowchart of FIG. 106, and the subroutine of step S117-12 is shown in FIG.
This is a process based on the flowchart of FIG. These processes have already been described in detail in the above-mentioned "2.3 Original Inverting Unit".

Document Discharge Processing II This processing procedure is shown in the flowchart of FIG.

In this process, first, it is checked whether the copy mode received data is between 6 and 9 (S118-
1). If it is not between 6 and 9, return
If it is between 9 and 9, it is checked whether the document stack unit connection flag is set (S118-2).
If the document reversing unit connection flag is set, that is, if it is confirmed that the document reversing unit 52 is connected, the copy mode reception data is changed to 6 and 7 this time.
Is checked (S118-3). Then, if the copy mode reception data is 6 and 7, the subroutine of the switching motor drive processing is executed (S118-4).
To return. In this subroutine, the switching motor back flag is set, 20 is stored in the step angle memory, and the switching stepping motor 377 is driven by -20 steps. On the other hand, if the copy mode received data is not 6 or 7, the process sets the inversion unit switching home request flag which is a flag for executing the processing shown in FIG. 119 (S118-5) and returns.

Initial Processing The switching of the document reversing unit 351 is performed by a stepping motor, and the position when the switching home position sensor 378 is turned on is set as the home position. (1) No movement (FIG. 22) (2) Backward 20 steps (FIG. 23) (3) Switching processing is performed on the forward side in three patterns of 20 steps (FIG. 24).

The document transfer section 3 of the document reversing unit 52
The drive of 51 can be rotated in the forward and reverse directions. (1) Forward rotation: linear velocity equivalent to that of the DF transport belt 53, etc. (2) Reverse rotation: sheet discharge green speed on the copying machine 1 side and sheet discharge from the finisher 11 There are two patterns of linear velocity equal to the linear velocity. In this case, the forward rotation is a rotation direction in which the DF is conveyed from the paper discharge unit side to the document stack tray 382 side, and the reverse rotation is a rotation in which the DF is conveyed from the document stack tray 382 side to the reversing unit switching mechanism and further to the finisher 11 side. Direction.

The initial process is a process in which the switching mechanism is set at the home position so that the document transfer unit 351 does not move. This processing procedure is shown in the flowchart of FIG.

In this processing, first, it is checked whether or not the reversing unit switching home request flag is set (S119-1). If it is not set, the routine returns. If it is set, the switching home position sensor 378 is turned on. It is checked whether it is (S119-2). ON
If so, the switching motor forward flag and the back flag are lowered (S119-3), the step angle counter is reset (S119-4), the inversion unit switching home request flag is lowered (S119-5), and the process returns. On the other hand, if the switching home position sensor 378 is OFF in step S119-2, it is checked whether any of the switching motor forward flag and the back flag is set (S119-6). If both flags are down, the step angle counter is reset (S119-7), the switching motor forward flag is set (S119-8), and the switching (stepping) motor 377 is moved one step forward (forward rotation). It is driven (S119-9). Next, the step angle counter is incremented by 1 (S119-10), and when the count value of the step angle counter becomes greater than 50 (S119-11), the switching motor forward flag is lowered (S119-1).
2), reset the step angle counter (S119-
13) Set the switching motor back flag (S119-1)
4) Return.

When it is determined in step S119-6 that either the switching motor forward flag or the back flag is set, the state of the switching motor back flag is checked (S119-15). Then, if the switching motor back flag is down, step S119
The process after -8 is executed, and if it is standing, the switching stepping motor 377 is driven one step back (reverse rotation) (S119-16). Then, the step angle counter is further incremented by 1 (S119-17). When the step angle counter becomes 106 or more (S119-17), the switching motor back flag is lowered (S119-19), and the step angle counter is reset (S119). -20) After that, the processing shifts to the abnormality processing routine.

Switching Motor Driving Process The switching motor of the document reversing unit 351, that is, the switching stepping motor 377 is driven according to the processing procedure shown in the flowchart of FIG.

In this processing, first, it is checked whether or not the step angle counter has been reset (S120-
1) If not reset, set the inversion unit switching home request flag (S120-2) and return. If reset, it is checked whether the inversion unit switching home request flag is set (S
120-3). If the inversion unit switching home request flag is set, the process returns. If the inverted unit switching home request flag is set, it is checked whether the switching motor forward flag and the back flag are set (S120-4). If these flags are on, it is checked whether the switching motor back flag is on (S120-5). If they are on, the switching stepping motor 377 is driven one step back (S120-6). If it has descended, the switching stepping motor 377 is driven one step forward (S120-7), and then the step angle counter is incremented by one (S120-8). Next, it is checked whether the step angle memory and the step angle counter are equal (S120).
-9), if they are equal, the switching motor forward flag and the switching motor back flag are respectively lowered (S120-1).
0, S120-11), switching stepping motor 377
Is turned off (S120-12) and the routine returns. In addition,
If the switching motor forward flag and the back flag are down in step S120-4, and
If the step angle memory and the step angle counter are not equal at 120-9, the process returns.

<< 9.7 Original Stack Portion Process >> This process is a process of transporting the original to the original stack tray 382 and aligning the original 69 on the original stack tray 382 by the roller 381. Specifically, the processing is performed according to the processing procedure shown in the flowcharts of FIGS. 121 and 122.

In the processing shown in FIG. 121, first, it is confirmed whether or not the original is discharged to the original stack tray 382 (S
121-1) When the sheet is discharged, the switching stepping motor 377 is turned on to set the switching member 365 to the home position (S121-2). This is the state shown in FIG. When the switching member 365 is set at the home position, the state of the first entry detection sensor 370 is checked (S121-3), and the first entry detection sensor 370 is checked.
Is ON, that is, if the original 69 has been conveyed from above the contact glass 17 and has reached the first entry detection sensor position, the switching solenoid 380 is turned OFF (S121-4).
Next, if the timer 2 serving as the jam check timer of the first entry detection sensor 370 and the second entry detection sensor 368 has started (Y in S121-5), the process waits until the timer 2 counts up (S121-6). If the timer 2 has not been started, the DF paper discharge sensors 321 and 322
The timer 1 which is a non-sending jam check timer between the first entry detection sensor 370 and the first entry detection sensor 370 is stopped and cleared (S121-
7) Start the timer 2 (S121-8) and wait until the timer 2 counts up (S121-6). If the counting up of the timer 2 has been completed in this step S121-6, the timer 2 is stopped and cleared (S121-1).
0), the document reversal jam flag is set (S121-1).
1) The flag is transmitted to the CPU 573 side of the copying machine main body (S
121-12) Move to a jam processing routine. If the timer 2 has not counted up, the state of the second entry detection sensor 368 is checked (S121-9) and turned off.
If it is ON, the timer 2 is stopped and cleared (S121-13). Next, the energization of the calling solenoid 386 is stopped, and the timer 3 which is a jam check timer is started (S121-14), and the process returns.

On the other hand, if it is determined in step S121-3 that the first entry detection sensor 370 is OFF, it is checked whether the timer 1 has started (S121-1).
5) If not started, start (S121)
-16) and return. If it has started, wait until the timer 1 counts up (S121-17).
If the timer counts up, the timers 1 and 2 are stopped and cleared (S121-18), and the document discharge jam flag is set (S121-18).
121-19), the flag is transmitted to the CPU 573 side of the copying machine body (121-12), and the process proceeds to the jam processing routine.

In the process shown in FIG. 122, first, the state of the original feeding roller driving solenoid 383 is checked (S
122-1) If it is ON, as shown in the timing chart of FIG. 135, the count-up of the 0.3 second timer for counting the processing time for moving the original 69 is checked (S122-2). Then, at the time of counting up, the 0.3 second timer is stopped and cleared (S122-3),
The document feeding roller driving solenoid 383 is turned off (S1
22-4) Return.

On the other hand, if the original feeding drive solenoid 383 is OFF, the state of the timer 3 is checked (S122-5), and if the timer 3 is ON, the count-up of the timer 3 is checked (S122). -6).
If the count has not been counted up, it is checked whether or not the document discharge sensor 379 of the document stack unit has risen as shown in FIG. 135 (S122-7). If so, the timer 3 is stopped and cleared (S122).
-8) Return afterwards. If it has not risen, it is checked whether or not the document discharge sensor 379 of the stack tray section 677 has fallen (S122-9). If it has not fallen, it returns. If it has fallen, it starts a 0.2 second timer, which is a delay timer until the discharged document 69 falls onto the document stack tray 382 as shown in FIG. 135 (S122). -1
0), and increments the discharged document number counter by one (S122-).
11) Return.

If it is determined in step S122-6 that the timer 3 has counted up, the timer 3 is stopped and cleared (S122-17), and the document reversal jam flag is set (S122-18). CPU5
After transmitting the flag to the 73 side (S122-19), the process returns. Further, in the step S122-5, the timer 3
Is determined to be OFF, the 0.2 second timer is turned ON (S122-12) and waits until the 0.2 second timer counts up (S122-13). Stop and clear the timer (S
122-14), a 0.3 second timer is started (S
122-15). Then, the original feeding roller driving solenoid 383 is turned on and the process returns. In addition, original
81: ON / OF multiple times for one discharged document
Needless to say, it may be configured to perform F.

<< 9.8 Refeeding Process >> This process is performed for the original 6
9 is fed to the finisher 11 side.
The sheet processing after the sheet 9 is fed to the finisher 11 is the same as that for the transfer sheet 37. The refeeding process is specifically performed according to the processing procedure shown in the flowchart of FIG.

In this process, first, the state of the conveyance jam flag is checked to know the state of conveyance of the document 69 (S
123-1). If the transport jam flag is set, the process proceeds to the abnormality processing routine.
It is checked whether the second door is open (S123-
2) If it is open, the process proceeds to the abnormality processing routine, and if it is closed, it is checked whether the document reversal jam flag is set (S123-3). If the document reversal jam flag is set, the process proceeds to the abnormality processing routine. If the document reversal jam flag is set, the state of the document feeding start flag is checked (S12).
3-4). If the document feed start flag is not set, that is, if document feeding is not started, return is performed.If the document feed start flag is set, in other words, if document feeding is already started, The state of the document feeding flag is checked (S123-5). If the document feeding flag is on, the document 69 is being fed at that time, and it is checked whether it is time to repeat feeding (S123).
-6), it is confirmed whether or not the original 69 is present on the original stack tray 382 at the timing (S123-).
7). If there is no document 69 on the document stack tray 382, the document feeding flag is lowered and the process returns. If there is a document 69 on the document stack tray 382, the refeeding clutch located coaxially behind the separation roller 390 shown in FIG.
Then, the state of the second entry detection sensor 368 is checked (S123-19). When the second entry detection sensor 368 is turned on by this check, the refeed clutch is turned off (S123-20), the number of documents is counted up (S123-21), and the routine returns.

On the other hand, if it is determined in step S123-5 that the document feeding flag is set down, it is checked whether or not there is a document 69 on the document stack tray 382 (S123-9). If so, the timer 1 is started (S123-10). Thereafter, the switching solenoid is turned off (S123-11),
Turn ON the original feeding roller solenoid 383 (S123-
12), the call solenoid 386 is turned on, the document feeding flag is lowered (S123-14), and if the timer 1 has counted up, the timer 1 is stopped and cleared (S1).
23-16) If the count has not been increased, the document number counter is cleared and the process returns (S123-1).
7). After the timer 1 is stopped and cleared in step S123-16, the resupply clutch is turned on (S123-1).
8) Further, if the state of the second entry detection sensor 368 is checked (S123-19) and turned on, the refeed clutch is turned off (S123-20), the number of documents is counted up, and the routine returns.

<< 9.9 Jam Check Timing >> FIGS. 124 and 125 are timing charts showing the jam check timing. Among them, FIG. 124 shows the timing in the single-sided mode, and FIG. 125 shows the timing in the double-sided mode.

In the timing chart of FIG.
Timing 1 indicates a state of a jam check by the leading edge detection sensor 234, and the feed motor 233 is turned on to 475.
For ms, the leading edge detection jam check is performed. In this jam check, the tip detection sensor 24
If 3 is not turned on, it is determined that a jam has occurred.

The timing of J2 indicates the state of the jam check by the registration (detection) sensor 245, and the registration jam check is performed for 375 ms after the leading edge detection sensor 243 is turned on. If the registration sensor 245 is not turned on during this 375 ms, it is determined that a jam has occurred.

The timing of J3 indicates the state of the jam check by the registration sensor 245 as in J2, and the registration O is performed for 1844 pulses from the ON of the registration sensor 245.
Perform FF check. If the registration sensor 245 is not turned off during this 1844 pulse, it is determined that a jam has occurred.

The timing of J4 is determined by the discharge detection sensor 32.
1A and 1B show a state of a jam check, and a discharge jam check is performed for 675 ms from the discharge motor 330N. During this 675 ms, the sheet discharge sensor 321 or 322
If is not ON, it is determined that a jam has occurred.

The timing of J5 is also the same as the paper discharge detection sensor 32.
1A and 1B show a state of a jam check, and a discharge OFFF check is performed for 125 ms after the discharge detection sensor is turned ON. During this 125 ms, the sheet discharge detection sensors 321 and 3
If 22 is not turned off, it is determined that a jam has occurred.

In the timing chart of FIG.
The timing of J1 indicates the state of a jam check by the leading edge detection sensor 243, and the timing of the paper feed motor 233
The leading edge jam check is performed for 5 ms. In this jam check, the tip replacement sensor 2
If 43 is not turned on, it is determined that a jam has occurred.

The timing of J2 is determined by the registration sensor 245.
Shows the state of the jam check by the paper feed motor 233.
After turning OFF, a resist jam check is performed for 350 ms. If the registration detection sensor 245 is not turned on within this 350 ms, it is determined that a jam has occurred.

The timing of J3 indicates the state of a jam check by the registration sensor 245 as in J2, and the registration OF for 175 ms after the leading edge detection sensor 243 is turned off.
Perform F check. If the registration sensor 245 is not turned off during this 175 ms, it is determined that a jam has occurred.

[0327] The timing of J4 is the tip detection sensor 243.
Showing a jam check by the registration sensor 2
After 45 ON, the end detection OFF check is performed for 1250 ms. If the leading edge detection sensor 243 is not turned off during this 1250 ms, it is determined that a jam has occurred.

The timing of J5 is determined by the discharge detection sensor 32.
1 shows a state of a jam check by the switch 322 and the sheet discharge sensor is turned on for 1250 ms after the reversing solenoid 316 is turned on.
Perform a check. During this 1250 ms, the discharge sensor 32
If 1,322 is not ON, it is determined that a jam has occurred.

The timing of J6 is also the same as the discharge detection sensor 32.
1, 322 shows a state of a jam check, and the sheet discharge detection sensor O for 1250 ms after the reversal of the transport motor 323.
Perform FF check. If the paper discharge detection sensors 321 and 322 are not turned off for 1250 ms, it is determined that a paper jam has occurred.

The timing of J7 is also the same
1 and 322 show a state of a jam check. After the discharge motor 330 is turned on, the discharge detection sensor ON check is performed for 675 ms. During this 675 ms, the sheet discharge detection sensor 32
If 1,322 is not ON, it is determined that a jam has occurred.

[0331] The timing of J8 is also determined by the sheet ejection detection sensor 32.
1A and 1322 show a state of a jam check. After the sheet ejection detection sensors 321 and 322 are turned on, a sheet ejection detection sensor OFF check for 1250 is performed. If the paper discharge detection sensors 321 and 322 are not turned off during this 1250 ms, it is determined that a paper jam has occurred.

<< 9.10 Document Conveying Operation Timing >> FIG. 126 is a timing chart showing the operation timing at the time of document conveying.

In the timing chart, T1 is the original 69
, The call solenoid 26T and the discharge motor 330 are turned on. At the timing of T2, the feed motor 233 is turned on 200 ms after the feed-in.
At the timing of T3, the tip replacement sensor 243 is turned on, the calling solenoid 267 is turned off, and the conveyance motor 323 is rotated forward after 55 ms. At the timing of T4, the leading end detection sensor 243 is OFF and the separation roller release solenoid 285
Turns off. At the timing of T5, the registration detection sensor 245 is turned off, and the registration clutch 237 is turned off.
Then, the size data is transmitted to and received from the CPU 573 of the copying machine body. At the timing of T6, the discharge detection sensor 32
After 75 ms from ON of 1,322, the transport motor 323 rotates in the reverse direction. At the timing of T7, the sheet ejection detection sensor 32
After 532 pulses from 1,322 OFF, the transport motor 32
3 and the discharge motor 330 are turned off. At the same time, a paper feed start signal is transmitted to the CPU 573 of the copying machine body. At the timing of T8, after the back side copy is completed, an inversion signal is received from the CPU 573 of the copying machine body,
3 rotates forward, and the discharge motor 330 is turned on. At the timing of T9, after the discharge detection sensors 321 and 322 are turned on, 75
After elapse of ms, the transport motor 323 rotates in the reverse direction. At the timing of T10, the conveyance motor 323 and the discharge motor 330 are turned off after 532 pulses after the discharge detection sensor is turned off. At the timing of T11, C
Upon receiving a copy end signal from the PU 573, the transport motor 3
23 rotates forward, and the discharge motor 330 is turned on. At the timing of T12, the discharge motor 330 is turned off 325 ms after the discharge detection sensors 321 and 322 are turned off.

<< 9.11 Flow of Document and Timing thereof >> The 127th (a) to 127 (d) show the flow of the document 69 due to the difference in the transport pattern, the turn roller, the transport belt, the first and second paper discharge sensors, It is a timing chart which shows the operation | movement timing of a reversing solenoid, and the pattern of the figure (a) thru | or (d) is 129 (a) thru | or (d).
Corresponds to each of the explanatory diagrams specifically showing the flow of the original.

First, the structure of each part such as the turn roller will be described with reference to FIG. Although the description partially overlaps with that of FIG. 2, a driven roller 305 for stretching and driving the transport belt 53 is disposed on the side of the finisher 11 of the contact glass 17, that is, on the left side in the figure, and further on the left side thereof. The turn roller 315 is located. The first and second driven rollers 324 and 326 are in rolling contact with the turn roller 315, and the first and second paper discharge sensors 321 and 321 are provided on the conveyance paths of the rollers 324 and 326 on the finisher 11 side, respectively. 322 are provided. Further, the first to third direction switching claws 318a, 318 are clockwise moved along a transport path 311 formed on the outer periphery of the turn roller 315.
b, 318c. These direction switching claws 3
18a, 318b and 318c are oscillated by a reversing solenoid 316 to switch the transport direction of the original 69. The original 69 is set with four different transport directions so as to be sharpened as follows. Switching between these directions is performed during the transport of the original by the first and second paper ejection sensors 321 and 322, that is, when the original 69 arrives. The process is executed based on the timing at which the document 69 comes out of the falling edge sensor position.

FIG. 127 (a) shows the timing when the original 69 is conveyed to the original stack tray 382. In this case, the turn roller 315 and the transport belt 5
3 starts the normal rotation (F) at the same timing. on the other hand,
The reversing solenoid 316 is in the OFF state, and the first direction switching claw 318a holds the state indicated by the one-dot chain line. When the first sheet ejection sensor 321 detects the document 69 and the document 69 passes through the detection position of the first sheet ejection sensor 321 and the output of the sensor falls, the turn roller 31
5 and the conveyor belt 53 are simultaneously turned off. That is, the original 69 is transported from the transport belt 53 to the original stack tray 382 via the turn roller 315 as shown by an arrow in FIG. It should be noted that the reference symbol A
Is the first paper ejection detection sensor 321 of the original 69.
, Which naturally depends on the size of the original 69.

FIG. 127 (b) shows that the original 69 is
The timing when the document is conveyed to the document stack tray 382 is shown. In this case, the turn roller 315 and the transport belt 53 start the normal rotation (F) at the same timing, and the reversing solenoid 316 is turned on at the same time. Thereby, the first, second, and third direction switching claws 318a, 31
8b and 318c are in the state of the solid line. And the original 69
, The first sheet discharge detection sensor 321 is turned on, the second sheet discharge detection sensor 322 is turned on with a delay of time B, and then the first sheet discharge detection sensor 321 is turned off.
Further, when the second discharge detection sensor 322 is turned off and falls, the rear end of the document 69 is moved to the second discharge detection sensor 322.
At this timing, the turn roller 315, the transport belt 53, and the reversing solenoid 316 are turned off. Then, the first to third direction switching claws 318a, 318b, 318c are in the state indicated by the one-dot chain line. Rotate (R). With the reverse rotation of the turn roller 315, the document 69 passes above the second direction switching claw 318b and is discharged in a state of being reversed to the document stack tray 382 side of the document reversing unit 52. FIG. 1
The flow of the original 69 is indicated by an arrow in FIG.
It should be noted that the time B is equal to the first and second discharge detection sensors 32.
This is a timing difference due to a difference in arrangement positions in the transport paths 1 and 322.

FIG. 127 (c) shows the timing when the original 69 is inverted and conveyed onto the contact glass 17. In this case, the turn roller 315 and the transport belt 53 start the normal rotation (F) at the same timing, and the reversing solenoid 316 is turned on at the same time. Thereby, the first, second, and third direction switching claws 318a, 318b,
318c is in the state of the solid line. Then, when the first discharge detection sensor 321 is turned on by the conveyance of the original 69 and the second discharge detection sensor 322 is turned on with a delay of time B, the second discharge detection sensor 322 is inverted at the rising edge of the second discharge detection sensor 322. The solenoid 316 turns off. By turning off the reversing solenoid 316, the third direction switching claw 318c becomes 1
It becomes the state of the chain line. Further, the first sheet ejection detection sensor 32
Conveyor belt 53 at substantially the same timing as the fall of
Starts reverse rotation, and when the leading end of the document 69 reaches the transport belt 53, the document 69 is drawn into the contact glass 17 by the transport belt 53 and is transported onto the contact glass 17. When the document 69 has been conveyed onto the contact glass 17, the turn roller 315 and the conveyance belt 53 stop. As a result, the flow of the original 69 as shown by the arrow in FIG. The time D indicates the timing until the document 69 inverted by the turn roller 315 reaches the transport belt 53.

FIG. 127D shows the timing when the original 69 is discharged onto the original discharge tray 285 of the original transport unit 10. In this case, the turn roller 315
And the transport belt 53 rotates forward at the same timing (F)
Is started, and at the same time, the reversing solenoid 316 is turned on. Thereby, the first, second and third direction switching claws 318 are provided.
a, 318b, 318c are in the state of the solid line. And
When the original 69 is conveyed, the first paper ejection detection sensor 321 is turned ON, and the second paper ejection detection sensor 322 is delayed by time B.
Is turned ON, and the original 69 is
When the time E through which the sensor 322 falls and the sensor 322 falls and passes through the discharge roller 319 elapses, the turn roller 315 is turned off.
Then, the transport belt 53 stops, and the document 69 is discharged onto the document discharge tray 285 of the document transport unit 51. As a result, the flow of the document 69 as indicated by an arrow in FIG.

[10. Overall Flow of Job Execution] The configuration and control of each unit have been described so far. Here, the overall job execution procedure will be described. FIG. 130 is a flowchart showing the job execution processing procedure.

In this processing, the reservation mode (S130-
1), staple error 1 flag (S130-2), paper end state (S130-3), DF lift up (S
130-4), the state of each door open flag (S130)
-5) is checked, the reservation mode is set, the staple error 1 flag is turned off, transfer paper that can be transferred is still left, and the pressure plate 288 of the document transport unit 51 is set on the contact glass 17, and Copying is only possible when the door is closed. Therefore, it is checked whether the upper 4 bits of the job selection memory are 0 (S130).
-6), if 0, the lower 4 bits are shifted to the upper 4 bits in the job selection memory (S130-7), and it is checked whether the upper 4 bits of the job selection memory are 0 (S130).
130-8). If the value is not 0, the mode is set by calling the mode data, the set number, and other data of the job indicated by the upper 4 bits from the memory (S130-
9). After executing the subroutine of this step S130-9, the copy mode reception data and the mode reception data are transmitted (S130-10), and it is checked whether or not the original 69 is stored in the original bin 201 of the multi-stage unit 50 (S130). -11). If the document 69 is stored, the copy job process according to the mode setting is performed until the job ends (S130-12, S130-13).
In this step S130-12, various data are stored in the CPU 573 of the copying machine main body 1 and the C of the finisher 11.
It is transmitted and received between the PU 651 and the CPU 601 of the document transport unit 10.

The various data to be transmitted and received are as follows: (1) The CPU 573 of the copying machine main unit 1
1 Transmission data to CPU 651 Motor ON flag Copy size data (5 bits) Copy transport flag Staple flag Bin movement flag Release flag Mode reception data (3 bits) (2) From CPU 651 of finisher 11 to CPU 573 of copying machine 1 Transmission data mode end flag Staple execution flag Bin position data (5 bits) Copy transport jam flag (when jam) Discharge OK flag Release jam flag (when jam) Discharge jam flag (when jam) (3) Copy machine body 1 Data transmitted from CPU 573 to CPU 601 of document transport unit 10 Copy mode reception data (4 bits) Document double-sided flag Document feed flag Document reversal flag Document discharge flag Document feed start flag Returned number data (when jammed) (4) Document transport unit Transmission data from the CPU 601 of the printer 10 to the CPU 573 of the copier body 1 In the return mode flag Original set flag Copy start flag Original size data (5 bits) Original reverse jam flag Reverse jam flag Transport jam flag Feeding jam flag It is.

If it is determined in step S130-13 that the copy job has ended based on the value of the number-of-discharges counter,
Staples and document conveyance are repeated until the job ends according to each mode (S130-14, S130-1).
5). When the processing in step S130-15 ends, the status of the staple error flag and the sort mode flag is checked (S130-16, S130-17). If the staple error flag goes down and the sort mode flag is on, the job ends. Start the 5-minute timer (S13
0-18) Return, and return when the staple abnormality flag is on and the sort mode flag is on.

On the other hand, on the finisher 11 side, FIG.
It is confirmed whether there is any remaining paper in the sheet storage bin 57 of the finisher 11 as shown in the flowchart of FIG.
-1) If not, stop and clear the 5-minute timer (S1)
31-8) Return, if there is remaining paper, whether the job is being executed (S131-2), whether the staple abnormality flag is set (S131-3), and whether each door open flag is set (S131-3). S131-4) Whether the 5-minute timer is counting up (S131-
5) Judgment is made respectively, if the job is being executed, if the staple error flag is on, if each door open flag is on, if the 5-minute timer has not counted up, return; otherwise. Staple all sheets remaining in the bin in the sort mode job (S1
31-6, S131-7), 5 when stapling ends
The minute timer is stopped and cleared (S131-8), and the routine returns.

[0345]

As is apparent from the above description, according to the first aspect of the present invention, after the non-stapling job is completed, the non-stapled sheets are stored in the sheet sorting means and then the staples are stapled. When a time set in advance so that the sheet can be removed by the operator before the sheet is removed, if a sheet remains in the sheet sorting means, the sheet is bound and then the sheet is removed from the sheet storage means. Therefore, after a certain period of time, the sheet separating means becomes empty and the sheet sorting means does not become full and cannot be used, as if
Sheets can be sorted by infinitely many sheet sorting means. As a result, even when a plurality of different copy modes are set, image formation and sheet processing can be continuously performed without being affected by remaining sheets of the sheet sorting means, and productivity of image formation can be significantly increased. . Further, since the sheets are not separated when the sheets are removed, the handling of the sheets is simplified, and it is possible to prevent the sheets from being mixed at the place where the sheets are removed.

According to the second aspect of the present invention, the apparatus further comprises a display means for displaying that the sheet is to be bound and removed after a preset time has elapsed, so that the operator can check the flow of the sheet after the sheet processing. As a result, even if the sheet is removed from the sheet removing means, the retrieval of the sheet is facilitated and the usability is improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an internal structure of a copying machine according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of a document conveyance system.

FIG. 3 is a plan view of a main part of the multi-stage unit.

FIG. 4 is an explanatory diagram showing the outline and operation of a multi-stage unit.

FIG. 5 is an explanatory view schematically showing a mechanism for raising a bottom plate of a document bin.

FIG. 6 is an explanatory diagram showing a relationship between a call roller and a separation roller.

FIG. 7 is a schematic configuration diagram showing a structure near a pull-out roller.

FIG. 8 is a schematic configuration diagram showing a structure near a call roller;

FIG. 9 is an explanatory view showing a use state of the separation rollers.

FIG. 10 is an explanatory diagram showing an operation of a separation roller.

FIG. 11 is an explanatory diagram showing an operation of a separation roller.

FIG. 12 is an explanatory diagram showing an operation of a separation roller.

FIG. 13 is an explanatory view schematically showing an opening / closing mechanism of a pressure plate.

FIG. 14 is an explanatory view schematically showing an opening / closing mechanism of a pressure plate.

FIG. 15 is an explanatory view schematically showing an opening / closing mechanism of a pressure plate.

FIG. 16 is an explanatory view schematically showing an opening / closing mechanism of a pressure plate.

FIG. 17 is a schematic configuration diagram of a document transport unit.

FIG. 18 is a schematic configuration diagram showing a structure of a document feeding unit on a document introduction side.

FIG. 19 is a schematic configuration diagram illustrating a document discharge side structure of a document transport unit.

FIG. 20 is an explanatory diagram illustrating a document size detection method.

FIG. 21 is a schematic configuration diagram showing an internal structure of a document reversing unit.

FIG. 22 is an operation explanatory view showing a switching mechanism of the document reversing unit.

FIG. 23 is an operation explanatory view showing a switching mechanism of the document reversing unit.

FIG. 24 is an operation explanatory view showing a switching mechanism of the document reversing unit.

FIG. 25 is a perspective view showing a document stack tray section.

FIG. 26 is a schematic configuration diagram illustrating a main part of a document calling mechanism.

FIG. 27 is an explanatory diagram illustrating a document separation mechanism.

FIG. 28 is a front view of a main part of a drive mechanism of the shift tray.

FIG. 29 is a side view of a main part of a drive mechanism of the shift tray.

FIG. 30 is a plan view of a sheet storage bin.

FIG. 31 is a schematic perspective view showing a sheet storage bin portion.

FIG. 32 is a perspective view showing main parts of a helical wheel and a sheet storage bin.

FIG. 33 is a front view of the stapler portion as viewed from the sheet discharge side.

FIG. 34 is a side view of the stapler portion as viewed from the sheet discharge side.

FIG. 35 is a front view of a main part of the sheet dropping mechanism.

FIG. 36 is a front view of a main part of a dropping roller.

FIG. 37 is a perspective view showing a dropping roller and a driving mechanism thereof.

FIG. 38 is a front view of a main part of the jogger mechanism.

FIG. 39 is a schematic configuration diagram showing a driving mechanism of the jogger mechanism.

FIG. 40 is an explanatory diagram showing a relationship between a jogger rod and a seat.

FIG. 41 is a perspective view of a stapler main body.

FIG. 42 is a side view of the stapler main body.

FIG. 43 is an explanatory diagram showing staple positions.

FIG. 44 is a perspective view showing a switching wheel and its driving mechanism.

FIG. 45 is a perspective view showing a switching wheel and transport rollers around the switching wheel.

FIG. 46 is a perspective view showing a state where a front switching wheel and a rear switching wheel are separated.

FIG. 47 is a block diagram schematically showing a control system of the copying machine main body.

FIG. 48 is a block diagram schematically illustrating a document transport supply control system of the document transport unit.

FIG. 49 is a block diagram schematically showing a control system of the finisher.

FIG. 50 is a flowchart illustrating a processing procedure for setting a reservation mode.

FIG. 51 is a flowchart showing a processing procedure for setting a reservation mode.

FIG. 52 is a flowchart showing a procedure of inputting, changing, and clearing a reservation mode job.

FIG. 53 is a plan view of a main part of an operation unit showing a key input part.

FIG. 54 shows the contents of a job and a nonvolatile R for storing the contents.
FIG. 4 is an explanatory diagram showing an outline of a memory map of AM.

FIG. 55 is an explanatory diagram showing the relationship between job reservation and execution in the reservation mode.

FIG. 56 is an explanatory diagram showing a state of a job shift.

FIG. 57 is a flowchart showing a procedure for determining a job execution order in a reservation mode.

FIG. 58 is a flowchart showing a job selection processing procedure.

FIG. 59 is an explanatory diagram showing an example of a mode selection key and a selected mode display.

FIG. 60 is a flowchart showing a processing procedure in a document processing mode.

FIG. 61 is a flowchart showing a normal mode processing procedure in document processing.

FIG. 62 is a flowchart showing a staple mode processing procedure in document processing.

FIG. 63 is a flowchart showing a processing procedure in a sort bin mode in document processing.

FIG. 64 is a flowchart showing a processing procedure of a shift tray mode in document processing.

FIG. 65 is a flowchart showing a processing procedure of a staple staple end check in document processing.

FIG. 66 is a flowchart showing a processing procedure using a copy processing key.

FIG. 67 is a flowchart showing a staple mode processing procedure in the copy processing;

FIG. 68 is a flowchart showing a normal mode processing procedure in the copy processing.

FIG. 69 is a flowchart showing the procedure of a sort mode in the copy process.

FIG. 70 is a flowchart showing a processing procedure in a stack mode in the copy processing.

FIG. 71 is a flowchart showing a processing procedure for checking the number of copies in the staple mode.

FIG. 72 is a flowchart showing a processing procedure for checking the number of copies in a stack mode.

FIG. 73 is a flowchart showing a processing procedure for warning a maximum value of the number of documents in the reservation mode.

FIG. 74 is a flowchart showing a processing procedure for warning a maximum value of the number of copies in a reservation mode.

FIG. 75 is an explanatory diagram showing a schematic configuration of a copying machine.

FIG. 76 is an explanatory diagram showing a data format of copy mode reception data.

FIG. 77 is an explanatory diagram showing mode reception data from the copying machine main body side to the finisher side.

FIG. 78 is an explanatory diagram showing a flow of a document and a transfer sheet according to a reception mode.

FIG. 79 is an explanatory diagram showing the flow of the original and the transfer paper according to the reception mode.

FIG. 80 is an explanatory diagram showing the flow of a document and a transfer sheet according to a reception mode.

FIG. 81 is an explanatory diagram showing a flow of a document and a transfer sheet according to a reception mode.

FIG. 82 is an explanatory diagram showing the flow of the original and the transfer paper according to the reception mode.

FIG. 83 is an explanatory diagram showing the flow of the original and the transfer paper according to the reception mode.

FIG. 84 is an explanatory diagram showing the flow of the original and the transfer paper according to the reception mode.

FIG. 85 is an explanatory diagram showing the flow of the original and the transfer paper according to the reception mode.

FIG. 86 is an explanatory diagram showing an example of a mode relating to processing of a document and transfer paper.

FIG. 87 is a timing chart showing the timing of processing after discharging the transfer paper after copying is completed.

FIG. 88 is a flowchart showing a processing procedure of an initial setting operation of post-processing after completion of copying.

FIG. 89 is a flowchart showing a processing procedure of an initial setting operation of post-processing after completion of copying.

FIG. 90 is a flowchart showing a processing procedure in driving the jogger.

FIG. 91 is an explanatory diagram showing how a home position is detected by a jogger home position sensor.

FIG. 92 is a timing chart showing a home position detection timing of the jogger home position sensor.

FIG. 93 is a flow chart showing an initial processing procedure of a switching wheel.

FIG. 94 is a flowchart showing the procedure for driving the switching wheel.

FIG. 95 is an explanatory diagram showing a data table of the drive pulse counter.

FIG. 96 is an explanatory diagram showing a relationship between a rotation state of a switching wheel and a sheet conveyance path.

FIG. 97 is a flowchart showing a processing procedure for checking whether the sheet storage bin is moved up or down according to a command from the copying machine main body.

FIG. 98 is a flow chart showing a processing procedure for raising / lowering control of the sheet storage bin.

FIG. 99 is a flowchart showing a stapler movement processing procedure;

FIG. 100 is a flowchart illustrating a processing procedure of a stapling process;

FIG. 101 is a flowchart illustrating a processing procedure of a sheet dropping process.

FIG. 102 is a flowchart showing a processing procedure during the execution of dropping a stapled sheet.

FIG. 103 is a flowchart illustrating a processing procedure during the execution of dropping a stapled sheet.

FIG. 104 is a timing chart showing timings of setting, feeding, discharging, and the like of a document.

FIG. 105 is a flowchart showing the procedure of a door open check process.

FIG. 106 is a flowchart showing a processing procedure for checking whether or not an optional device is connected to the document transport unit.

FIG. 107 is a flowchart showing the procedure of a bin home request process for a document bin.

FIG. 108 is a flowchart illustrating a processing procedure of a lift-up check and an initial jam check of a transport unit (pressing plate) of the document transport unit.

FIG. 109 is a flowchart showing a processing procedure regarding bin number data input of the multi-stage unit.

FIG. 110 is a flowchart showing a bin moving process procedure based on data received from the copying machine main body.

FIG. 111 is a flowchart showing a document bin raising process procedure;

FIG. 112 is a flowchart showing a document bin lowering procedure.

FIG. 113 is a flowchart showing a processing procedure for setting a document bin to a paper feed position.

FIG. 114 is a flowchart showing a processing procedure for setting a document bin to a paper feed position.

FIG. 115 is a flowchart illustrating a processing procedure of a feed-in process for starting conveyance of a document from the multi-stage unit to the document conveyance unit.

FIG. 116 is a flowchart showing a paper jam check processing procedure.

FIG. 117 is a flowchart showing a processing procedure of document discharge processing I.

FIG. 118 is a flowchart showing a processing procedure of document discharge processing II.

FIG. 119 is a flowchart showing the procedure of an initial process for setting the switching mechanism of the reversing unit to the home position.

FIG. 120 is a flowchart showing a processing procedure of driving processing of the switching motor.

FIG. 121 is a flowchart showing a processing procedure of processing in a document stack unit.

FIG. 122 is a flowchart showing a processing procedure of processing in a document stack unit.

FIG. 123 is a flowchart showing the procedure of a sheet re-feeding process.

FIG. 124 is a timing chart showing a jam check timing in the one-sided mode.

FIG. 125 is a timing chart showing a jam check timing in the duplex mode.

FIG. 126 is a timing chart showing the timing of a document conveying operation.

FIG. 127 is a timing chart showing the flow of a document and the operation timing of each unit involved in the flow.

FIG. 128 is a schematic configuration diagram showing a main part of a document transport unit.

FIG. 129 is an explanatory diagram showing a flow of a document.

FIG. 130 is a flowchart showing a job execution processing procedure.

FIG. 131 is a flowchart showing a processing procedure of job execution.

FIG. 132 is an operation explanatory diagram showing an operation when a stapled sheet is dropped onto a stack tray.

FIG. 133 is a schematic diagram mainly showing sensors arranged around a switching wheel.

FIG. 134 is an explanatory diagram showing an overall control concept including communication between the copier, the multi-stage ADF, and the finisher.

FIG. 135 is a timing chart showing a detection output of a document discharge sensor and an operation timing of a document feeding roller solenoid.

[Explanation of symbols]

 11 Finisher 57 Sheet storage bin (sheet storage hand throw) 63 Jogger 65 Stapler (sheet binding hand throw) 67 Stack tray section 401 Sheet storage bin drive shaft 415 Guide groove 417 Helical wheel (step advance hand throw) 421 Bin holder drive shaft 427 Stapler movement motor 431 First drop 433 Second drop 441 Drop drive motor 451 Drop drive motor 661 Reserve mode key 665 Mode clear key 671 Reserve selection key 673 Enter key 675 LED 677 Reserve LED 679 Reserve error LED 701 Copy processing key 701a Staple mode display LED 701b Sort mode display LED 701c Stack mode display LED 703 Document processing key 703a Staple mode display LED 703 Sort bin mode display LED 703c shift tray mode display LED

Continuation of the front page (56) References JP-A-63-147775 (JP, A) JP-A-1-187178 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 37 / 04 B65H 39/11

Claims (2)

(57) [Claims] In an image forming apparatus having a sheet sorting unit for sorting sheets after image formation, after a non-stapling job is completed, a non-stapled sheet is stored in the sheet sorting unit, and then the sheet is stapled. When a time set in advance so that the sheet can be removed by the operator before the sheet is removed, if a sheet remains in the sheet sorting means, the sheet is removed from the sheet storage means after the sheet is bound. An image forming apparatus comprising a removing unit. 2. The image forming apparatus according to claim 1, further comprising display means for displaying that the sheet is to be bound and removed after the preset time has elapsed.