JP2590144B2 - Sheet binding device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a sheet binding apparatus suitable for various printers, copying machines, facsimile machines, and the like, and in particular, can stapling (binding) a sheet bundle. The present invention relates to a sheet binding apparatus having a stapling function (document binding function).

2. Description of the Related Art Conventionally, a copying apparatus or the like has provided a sheet binding apparatus having a stapling function of stapling a sheet bundle of recorded paper or the like.

[Problems to be Solved by the Invention] However, in this type of conventional apparatus, the stapler portion is fixed, so that the stapling can be performed only at a predetermined position. Further, since the width shift plate for aligning the sheet bundle is semi-fixed with a small degree of freedom of movement, stapling can be performed only at a predetermined position.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet binding apparatus capable of eliminating the above-mentioned disadvantages and stapling at an arbitrary position.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an image forming unit for forming an image on a sheet, and an arbitrary position of a bundle of sheets on which an image is formed by the image forming unit. Stapling means for stapling, instruction means for directly instructing a position to be stapled by the stapling means in an image to be formed by the image forming means, and a position instructed by the instruction means. And a changing means for changing a stapling position by the stapling means.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of the internal configuration of an image forming apparatus to which the present invention is applied. In this figure, 100 is a main body having an image reading function for exposing and scanning an original and an electrophotographic image recording function using a charged image, and 200 is a unit for reselling a recording medium (recording paper) during double-sided recording. A pedestal as a recording paper re-feeding means having a double-sided processing function and a multiplex recording function for performing multiple recordings on the same recording medium. Reference numeral 300 denotes a platen for holding down a document having an area designation function by a digitizer (hereinafter, a pressure plate with a digitizer). ). Reference numeral 400 denotes a paper folding device that folds a sheet at a predetermined position, and 500 denotes a finisher (sheet binding device) having a sorting function and a stapling function. Each of these devices 200 to 500 can be used in any combination with the main body 100.

A. Main unit (100) In the main unit 100, 101 is a platen glass on which an original is placed, 103 is an illumination lamp (exposure lamp) for illuminating the original, 1
05, 107 and 109 are scanning reflection mirrors (scanning mirrors) for changing the optical path of the reflected light of the original, 111 is an imaging lens having a focusing function and a variable power function, and 113 is a fourth reflection mirror (scanning mirror) for changing the optical path. ). Reference numeral 115 denotes an optical system motor that drives the optical system, and 117, 119, and 121 denote sensors.

131 is a photosensitive drum, 133 is a main motor for driving the photosensitive drum 131, 135 is a high-pressure unit, 137 is a blank exposure unit, 139 is a developing device, 141 is a transfer charger, 143 is a separation charger, and 145 is a cleaning device. is there.

151 is an upper cassette containing standard recording paper, 153 is a lower cassette, 154 is a manual tray having a manual paper feeding function of irregular recording paper, 155, 156 and 157 are paper feed rollers, 159
Is a registration roller. Reference numeral 161 denotes a conveyor belt for conveying the recording paper on which the image is recorded to the fixing side; 163, a fixing device for fixing the conveyed recording paper by thermocompression; and 167, a sensor used for double-sided recording.

The surface of the above-described photosensitive drum 131 is made of a photoconductor and a seamless photoconductor using a conductor. The drum 131 is rotatably supported by a shaft, and operates in response to pressing of a copy start key described later. The rotation is started by the motor 133 in the direction of the arrow in FIG. Next, when the predetermined rotation control and potential control processing (pre-processing) of the drum 131 is completed, the original placed on the original table glass 101 is illuminated by the illumination lamp 103 integrated with the first scanning mirror 105, The reflected light of the original is reflected by the first scanning mirror 105, the second scanning mirror 107, the third scanning mirror 109, the imaging lens 11, and the fourth scanning mirror 1.
An image is formed on the photosensitive drum 131 via the line 13.

On the other hand, the photosensitive drum 131 is corona-charged by the high-pressure unit 135 immediately before that. Thereafter, the image (original image) irradiated by the illumination lamp 103 is subjected to slit exposure, and the photosensitive drum 131 is exposed by a known electrophotographic copying method (for example, NP method).
An electrostatic latent image is formed thereon.

Next, the electrostatic latent image on the photosensitive drum 131 is developed by a developing roller 140 of a developing device 139 and visualized as a toner image, and the toner image is transferred onto a recording paper by a transfer charger 141 as described later. .

That is, recording paper (also referred to as transfer paper) in the upper cassette 151, the lower cassette 153, or the manual feed tray 154.
Is sent into the apparatus of the main body 100 by the paper feed rollers 155, 157 or 156, is sent by the registration rollers 159 in the direction of the photosensitive drum 131 at an accurate timing, and the leading end of the latent image coincides with the leading end of the recording paper. Then, the transfer charger 14
When the recording paper passes between 1 and the drum 131, the toner image on the drum 131 is transferred onto the recording paper. After the transfer is completed, the recording paper is separated from the drum 131 by the separation charger 143, guided to the fixing device 163 by the conveyor belt 161 and fixed by pressure and heat.
Is discharged out of the main body 100.

After the transfer, the drum 131 continues to rotate, and the surface thereof is cleaned by a cleaning device 145 including a cleaning roller and an elastic blade.

B. Pedestal (200) The pedestal 200 is detachable from the main body 100, and has a deck 201 capable of storing 2000 sheets of recording paper and an intermediate tray 203 for double-sided copying. Also, its 200
The lifter (elevator) 205 of the deck 201 capable of storing 0 sheets is configured so that the recording paper always abuts the paper feed roller 207 at a predetermined pressure.
It automatically rises according to the amount of transfer paper.

Also, reference numeral 211 denotes a discharge flapper for switching the path between the double-side recording side or multiple recording side path and the discharge side path, 213 and 215 the conveyance paths of the conveyance belt, and 217 an intermediate tray weight for holding the recording paper. The recording paper that has passed through 211 and the transport paths 213 and 215 is turned over,
Stored in 3. Reference numeral 220 denotes a width shifting plate for aligning the recording sheets stored in the intermediate tray 203.

Reference numeral 219 denotes a multiplex flapper for switching the path between double-sided recording and multiplex recording. The flapper 219 is disposed between the conveyance paths 213 and 215 and guides the recording paper to the multiplex recording conveyance path 221 by rotating upward. Reference numeral 223 denotes a multiple discharge sensor for detecting the end of the recording paper passing through the multiple flapper 219. A paper feed roller 225 feeds the recording paper to the drum 131 through the path 227. Reference numeral 229 denotes a discharge roller for discharging the recording paper outside the pedestal 200.

At the time of double-sided recording (double-sided copying) or multiple recording (multiplexed copying), first, the tip of the paper discharge flapper 211 close to the paper discharge roller 165 of the main body 100 is raised upward by turning in the counterclockwise direction to record the copied data. The paper is guided to the intermediate tray 203 via the conveyance paths 213 and 215 of the pedestal 200 and stored. At this time, the multiplex flapper 219 is lowered during double-side recording, and the multiplex flapper 219 is raised during multiplex recording. This intermediate tray 203
Can store, for example, up to 99 recording sheets.
The recording sheets stored in the intermediate tray 203 are aligned by the width shift plate 220 and pressed by the intermediate tray weight 217. The position of the width shift plate 220 can be changed by, for example, a stepping motor.

At the time of the next backside recording or multiplex recording, the recording paper stored in the intermediate tray 203 is moved one by one from the bottom by the action of the paper feed roller 225 and the weight 217 to the registration of the main body 100 via the path 227. It is guided to the roller 159 and recording is performed by the same copying operation as described above.

C. Pressure plate with digitizer (300) Second example of external view of pressure plate with digitizer 300 seen from above
These are shown in FIGS. In the figure, reference numeral 301 denotes a low antibody (hereinafter, referred to as a size designation sheet) as a planar region designation unit for reading the positions in the horizontal direction (X direction) and the vertical direction (Y direction); Writing pen-shaped lead pen switch used for input designation, 310
Is a clear key for clearing the input on the digitizer, 311 is a registration key for registering the input of the area designation, 312 is a mode key for specifying a copy mode such as trimming and masking, 31
Reference numeral 3 denotes a staple position designation key used to designate a staple position on the pressure plate 300 with a digitizer.

After the operator presses the mode key 312 with the tip of the lead pen switch 302, two points of the area designated on the size designation sheet 301 by the lead pen switch 302, for example, points A and A ', or points B and B Pressing the point 'A-B
An area surrounded by -A'-B'-A is designated, and when the registration key 311 is depressed with the lead pen switch 302, the mode and the area are registered in the internal memory.

Further, after further pressing the staple position designation key 313 with the lead pen switch 302, the inside of the oblique line on the size designation sheet 301 (see FIGS. 2A and 2B) is also pressed with the lead pen switch 302. , The staple position is designated, and by further pressing the registration key 311, the staple position is registered in the internal memory. Thereafter, when copying is performed, copying is performed by the above-described stapling function.

D. Paper Folding Apparatus (400) The paper folding apparatus 400 shown in FIG. 1 performs a Z-fold, which is a half-fold in which a recorded recording paper is folded substantially at the center thereof, and a three-fold substantially Z-shaped cross section at two predetermined positions. Things. In the paper folding device 400, reference numeral 401 denotes a flapper for guiding the recording paper downward during folding, 403 and 405 denote paths (conveying paths), and 407 and 409 denote folding rollers.

In the paper folding apparatus 400, when Z folding is designated by a Z folding key described later, the flapper 401 is turned on to guide the recorded paper to the lower path 403, and the leading end of the paper is When the sheet is stopped, the sheet portion folded into a quarter by the roller 407 abuts against the end of the path 405, and the sheet is further reduced by a half.
The sheet is again guided from the roller 407 to the finisher 500 through the roller 409.

Also, when half-folding is specified by a half-fold key described later, the recorded paper is folded in half at the path 403, and then is discharged from the rollers 409 to the finisher 500 without going to the path 405. You. On the other hand, when the folding key is not specified and the paper is not folded, the flapper 401 is turned off and the recorded paper is directly discharged to the finisher 500 as it is.

E. Finisher (500) In a finisher (sheet binding device) 500 for sorting or stapling recorded paper, 501 is for path switching for selectively switching to one of a sorting path 503 and a staple path 505. A paper discharge flapper, 507 is a staple tray for temporarily loading and storing recorded paper before being stapled, 509 is a width adjustment plate provided on the staple tray 507 for controlling a width, and 511 is width adjustment controlled by the width adjustment plate 509. A stapler (document binding machine) for stapling a plurality of recorded papers, 512 is a stepping motor for moving the stapler 511 in the direction of the arrow in the figure, and 513 is a stacker tray for storing stapled recorded paper. The drive of the shift plate 509 is controlled by a stepping motor (not shown). Reference numeral 514 denotes a home position sensor for detecting the position of the width shift plate 509. A sorting tray 515 sorts unstapled recording paper.

The recorded paper discharged from the main body 100 or from the pedestal 200 is half-folded or Z-folded by the paper folding device 400 according to the specification of the key, and then is discharged to the swing type sorting tray 515 of the finisher 500, or Then, the staple tray 507 is discharged. The width of the recorded paper discharged to the staple tray 507 is regulated by the width shift plate 509 for each part of the designated number of sheets, and the stapler 511 is moved to the designated position on the above-mentioned digitizing plate 300 with the stepping motor 512 by the stapler 512. Stacker tray 513 bound at 511
Dropped to

That is, in the finisher 500, when the staple mode is selected by a staple key described later, the discharge flapper 501 is turned on, the recorded paper is discharged to the staple tray 507 via the path 505, and when the specified number of sheets is reached. Body 1
In response to an instruction from 00, the width shift plate 509 and the stapler 511 are turned ON, and the recorded paper on the staple tray 507 is stapled. Thereafter, the stapled paper is dropped onto the stacker tray 513. By repeating this operation, a plurality of recorded documents collated and stapled are completed. Reference numeral 517 denotes a sensor for detecting the presence or absence of a staple. For example, a reflection type optical sensor is used.

When the stapling process is not selected, the discharge flapper 501 is turned off and switched to the sorting side, and the recorded paper is discharged to the sorting tray 515 through the path 503.
At that time, the recorded paper can be stacked by being shifted left and right by 30 mm alternately in units of a good number of sheets according to an instruction from the main body 100.

3 (A) to 3 (C) show examples of the arrangement configuration of an operation panel provided on the upper surface of the main body 100 described above. The operation panel has a key group 600 and a display group 700 as described below.

F. Key Group (600) In FIG. 3A, reference numeral 601 denotes an asterisk (*) key, which allows the operator (user) to set a setting mode such as a setting of a binding margin or a size setting of a document frame erasing. Used when specifying. An all reset key 602 is pressed to return to the standard mode. 603 is a preheating key, the main unit 1
This button is pressed when the machine of No. 00 is in the preheating state and when the preheating state is released. The key 603 is also pressed when returning from the auto shut-off state to the standard mode.

604 is a copy start key (copy start key),
Press to start copying.

A clear / stop key 605 has a clear key function during standby and a stop key function during copy recording. This clear key is pressed to cancel the set number of copies. Also used to cancel * (asterisk) mode. The stop key is pressed to interrupt continuous copying. After the copying at the time of pressing is completed, the copying operation is stopped.

Numeral 606 is a numeric keypad for entering numbers from 1 to 9,0, and is pressed to set the number of copies. Also used to set * (asterisk) mode. Reference numeral 607 denotes a memory key, and a mode frequently used by the user can be registered in advance.

In FIG. 3B, 608 and 609 are copy density keys which are depressed when manually adjusting the copy density. 610 is A
E (automatic density adjustment) key
Press to automatically adjust the copy density, or to cancel AE and switch the density adjustment to manual. 61
A cassette selection key 1 is pressed to select the upper cassette 151, the lower cassette 153, and the lower paper deck 201. Also, an RDF (circulation type document feeder) is attached in place of the digitizer pressure plate 300, and when a document is placed on the RDF, APS (automatic paper cassette selection) can be selected by the selection key 611. When APS is selected,
A cassette having the same size as the original is automatically selected. Also,
Reference numeral 612 denotes an equal-magnification key, which is depressed when taking an actual-magnification (original-size) copy.

In FIG. 3 (C), reference numeral 613 denotes an automatic scaling key, which is depressed when automatically reducing or enlarging the image of the original in accordance with the designated size of the recording paper. Reference numerals 614 and 615 denote zoom keys, which are pressed to specify an arbitrary magnification between 64% and 142%. Reference numerals 616 and 617 denote fixed-size scaling keys, which are pressed when designating reduction / enlargement of a fixed-size.

A double-sided key 618 is pressed to make double-sided copying from a single-sided original, double-sided copying from a double-sided original, or single-sided copying from a double-sided original. A binding margin key 619 can create a binding margin of a designated length on the left side of the recording paper. A photo key 620 is pressed to copy a photo original. 621
Is a multiplex key, which is pressed to create (combine) images on the same side of the recording paper from two originals.

Reference numeral 622 denotes a document frame erase key, which is pressed when the user erases a frame of a standard size document, and the size of the document at that time is set by an asterisk key 601 in FIG. 3A. A sheet frame erasing key 623 is pressed when erasing a document frame in accordance with the size of a cassette.

A page continuous copy key 624 is pressed when the left and right pages of the document are copied on separate sheets.

Reference numeral 625 denotes a staple key, which is depressed when stapling paper after recording. 626 is a Z-fold key, A3 or B
Press the size 4 to fold the recorded paper into a Z-shaped cross section. A half-fold key 627 is pressed to fold the A3 or B4 size recorded paper in half.

628 is a sort key, and a sorting tray (sorter) 515
Is connected in the standard mode. At this time, this key 628 is pressed to cancel the sort mode or to set the sort mode. A group key 629 copies a plurality of sheets from one document and stores the copies in the sorting tray 515 for each bin if the sorting tray 515 is connected. An interrupt key 630 in FIG. 3A is used when performing interrupt copying during a series of copying operations.

G. Display Group (700) In FIG. 3 (C), reference numeral 701 denotes an LCD (liquid crystal) type message display.
No characters and can display a 40 character message. The display 701 is a transflective liquid crystal and uses two colors for a backlight. A green backlight is normally turned on, and an orange backlight is turned on in an abnormal state or in a copying disabled state. Reference numeral 702 denotes a magnification display, and the zoom key 6
Displays the copy magnification set in 16,617 in% (percentage).

In FIG. 3B, reference numeral 703 denotes an equal-magnification display, which is turned on when an equal-magnification is selected. Reference numeral 704 denotes a color development display, which lights when a sepia development unit is set.
A copy number display 705 displays the number of copies or a self-diagnosis code. 706 is a cassette indicator for use,
Which of the upper cassette 151, the lower cassette 153, and the lower deck 201 is selected is displayed.

Reference numeral 707 denotes a document direction display, which displays the document setting direction (vertical / horizontal). 708 is an AE display, and AE
Lights when AE (automatic density adjustment) is selected with key 610.

Further, in FIG. 3 (A), reference numeral 709 denotes a preheating indicator, which lights up in a preheating state. When in the auto shut-off state, the display 709 blinks. 710 is a ready / weight indicator, two-color LE for green and orange
When D is ready (when copying is possible), green is lit, and when waiting (when copying is not possible), orange is lit.

Reference numeral 711 in FIG. 3C denotes a double-sided copy display, which is turned on when one of double-sided copy from a double-sided original and double-sided copy from a single-sided original is selected. In the standard mode, the number of copies is one, the density manual mode, the same size, and the setting of one-sided original to one-sided copy.

H. Controller (800) FIG. 4 shows an example of a circuit configuration of the controller 800 of the embodiment shown in FIG. In FIG. 4, reference numeral 801 denotes a central processing unit (CPU) for performing arithmetic control for executing the present invention.
Microcomputer μCO made by EC (NEC Corporation)
Use M87AD. FIGS. 5 and 6 show the 803 according to the present invention.
Read-only memory (ROM) in which control procedures (control programs) as shown in FIG. 9 or FIG. 9 are stored in advance.
The CPU 801 controls the components connected via the bus according to the control procedure stored in the ROM 803. 80
Reference numeral 5 denotes a random access memory (RA) which is a main storage device used for storing input data and a work storage area.
M).

Reference numeral 807 denotes an output signal transfer interface (I / O) for outputting a control signal of the CPU 801 to a load such as the main motor 133;
Reference numeral 09 denotes an interface for input signal transmission of an input signal of the image sensor 121 and the like, which is transmitted to the CPU 801. Reference numeral 811 denotes a key group 600.
And an interface for input / output control of the display group 700 and the display group 700. These interfaces 807, 809, 811 use, for example, the input / output circuit port μPD8255 of NEC.

The display group 700 is each of the display units shown in FIG. 3, and uses, for example, an LED (light emitting diode) or an LCD (liquid crystal display). The key group 600 is each key shown in FIG. 3, and the CPU 801 can know which key has been pressed by a known key matrix.

I. Operation Example (Part 1) Next, with reference to the flowchart of FIG. 5, the operation when the stapling position is specified by using the digitizer-equipped pressure plate 300 of the embodiment of the present invention will be described.

First, the user (operator) reads the lead pen switch
When the area is designated by pressing 302 on the electrode surface of the pressure plate 300 with digitizer, the lead pen signal pressed by the lead pen switch 302 is turned on (input) (step S101,
(See FIG. 2). When the on signal of the reapen switch 302 is input, the voltage applied to the electrode of the pressure plate with digitizer 300 is immediately specified on the X-axis (step S102), and the voltage corresponding to the pressed position (ie, the X-axis input voltage) is determined. A / D (analog / digital) conversion is performed (step S103), and the converted digital value is stored in a predetermined area (X-BuF) in the RAM 805 (step S104).

Next, the above-described electrode application voltage is switched to the Y-axis designation (step S105), and the Y-axis input voltage is similarly A / D converted (step S106) and stored in a predetermined area (Y-BuF) in the RAM 805. (Step S107).

Then, the data of the area (Y-BuF) is compared with a preset maximum value in the coordinate input area of the digitizer-equipped pressure plate 300 to determine whether the area is inside or outside the area (step 10).
8). If it is determined that the data is in the area, the contents of the data addresses (X-1st) and (Y-1st) are shifted (transferred) to the area designation data addresses (X-2nd) and (Y-2nd) in the RAM 805.
(Step S109), the area (X-Bu
By shifting (transferring) the contents of (F) and (Y-BuF) to (X-1st) and (Y-1st), the coordinates of the designated area are refreshed, and the data of the latest two points is always stored. And returns to step S101 again. As a result, the latest data is always available even when sequentially designated by the lead pen switch 302.

On the other hand, if it is determined in step S108 that the area is outside the area, one of the mode setting keys 312 and 313 is scanned.
Then, it is determined whether the data value of the area (X-BuF) is the voltage value of the staple position designation key 313 by comparing it with a predetermined set value (step S111). Sets the staple position flag F (step S112), and returns to step S101 again. However, if it is determined in step S111 that the voltage value is not the voltage value of the staple position designation key 313, the corresponding various keys 310, 31
A process corresponding to steps 1 and 312 is performed (step S113), and the process returns to step S101 again. Since the processing corresponding to the various keys in step S113 is not directly related to the present invention, a detailed description thereof will be omitted.

J. Operation Example (Part 2) Next, a copying operation involving stapling according to an embodiment of the present invention after the above-described stapling position designation is performed is described in a sixth example.
7 and 8 (A)-
This will be described with reference to FIG.

The staple function is staple key 625 in Fig. 3 (G).
If the staple position designation flag F is set by the key 313 on the digitizer-equipped pressure plate 300, it is determined (step S601). If the staple position designation input flag F is not set, it is considered that the stapler 511 is located at the home position when the home position sensor 514 is ON.
Therefore, when the home position sensor 514 is ON, the process jumps from step S602 to step S610 to perform stapling at the home position, and drops the bundle of recording paper onto the lower stacker tray 513 (step S611). When the home position sensor 514 is OFF, the stepping motor
When the home position sensor 514 is turned on, the stepping motor 512 is stopped (step S60).
3). Then, the process jumps from step S602 to step S610, performs stapling, and drops the recording paper bundle onto the lower stacker tray 513 (step S611).

If the staple position designation flag F has been set in step S601, the (X-1st) data obtained in step S110 in FIG. 5 is stored in the internal memory as staple position data (step S604). Next, the amount of movement of the stapler 511 from the home position is determined based on the stored data (step S605).

Next, it is determined by the home position sensor 514 whether or not the stapler 511 is at the home position 518 (step S606, see FIG. 7). The stapler 511 is returned to the home position (step S608), and after returning to the home position, the stepping motor 512 is driven forward by an amount corresponding to the moving amount of the stapler 511 (step S607), and stapling is performed (step S6).
10), drop it onto the lower stacker tray 513 (step S611). If the home position sensor 514 is ON in step S606, the stepping motor 512 is driven to rotate forward, moved by an amount corresponding to the moving amount of the stapler 511 (step S607), and stapled (step S61).
0), drop it onto the lower stacker tray 513 (step
S611). Then, the process returns to the main routine.

Thus, for example, at the position where the staple is located on the digitizer-equipped pressure plate 300, for example, FIGS. 8 (A), (B), and (C).
As shown in (1), stapling can be performed at an arbitrary position.

Although the stepping motor 512 is used as the moving means of the stapler 511 in the above-described embodiment, another driving system may be used via a clutch or the like.

K. Operation Example (Part 3) FIG. 9 shows a copying operation involving staples after the staple position is specified according to the second embodiment of the present invention. next,
The operation of the second embodiment of the present invention will be described with reference to FIGS. 9, 10, and 11 (A) to (C).

The staple function is staple key 625 in Fig. 3 (C).
Is selected from the internal memory (step S701), first, the tenth
The stepping motor 512 drives the width to adjust the distance between the width-shifting plate A509 and the width-shifting plate B509 'to the size of the recording paper (step S702). While keeping the distance, the width moving plates A and B are driven by the stepping motor 512 until the width moving plate A509 reaches the home position A (steps S703 and S704). The home position A mentioned here is a recording paper receiving position as shown in FIG. 10 and is a normal stapling position.

Next, after terminating the copying operation (step S705),
It is determined whether the staple position designation flag F is set (step S706). If the staple position designation flag F has not been set, the process proceeds to step S710.
Then, stapling is performed at the home position A, and the recording paper bundle is dropped onto the lower stacker tray 513 (step S711).

If the staple position designation flag F has been set, the above-mentioned data (Y-1st) is fetched as staple position data (step S707). The moving amount of the width shift plates A and B is determined based on the taken data (step S708). The stepping motor 512 is driven by an amount corresponding to the moving amount to move the width shift plates A and B.
At this time, a single stepping motor is used to drive the width shift plates A and B using a clutch or the like (step S709). Thereafter, stapling is performed (step S710), and the recording paper bundle is dropped onto the lower stacker tray 513 (step S71).
1).

In this way, by moving both of the width shift plates A and B as shown in FIG. 10, stapling can be performed at an arbitrary place as shown in FIGS. 11 (A) to 11 (C).

In the above-described embodiment, the stepping motor 512 is used as the moving means of the width shift plate, but another driving system may be used via a clutch or the like.

[Effects of the Invention] As described above, according to the present invention, the instruction means for directly instructing the position to be stapled by the stapling means in the image to be formed by the image forming means, and the instruction means According to the instructed position, since there is a change means for changing the stapling position by the stapling means, the operator indicates a direct and specific stapling position on the image to be formed on the sheet, The instruction can be realized.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the entire internal configuration of an embodiment of the present invention, FIG. 2 is a plan view showing an example of the configuration of a pressure plate 300 with a digitizer of FIG. 1, and FIGS. 3 (A), (B) and (B). C) is a plan view showing an example of the operation panel of the embodiment of the present invention in FIG. 1, FIG. 4 is a block diagram showing an example of a circuit configuration of the control device of the embodiment of the present invention in FIG. 1, and FIG. FIG. 6 is a flowchart showing a stapling position designation operation of the embodiment of the present invention. FIG. 6 is a flowchart showing a stapling operation of one embodiment of the present invention. FIG. 7 is a side view showing an operation of the stapler of FIG. A), (B), and (C) are plan views showing an example of stapling, FIG. 9 is a flowchart showing a stapling operation of a second embodiment of the present invention, and FIG. FIG. 11 (A), (B) and (C) are stapling. Is a plan view showing an example. 100 body, 131 photosensitive drum, 151,153 cassette, 154 manual feed tray, 200 pedestal, 201 deck (lower deck), 203 intermediate tray for duplex copying, 207 paper feed Roller, 211: Ejection flapper, 217: Intermediate tray weight, 219: Multiple flapper, 220: Width adjustment plate, 300: Press plate with digitizer, 301: Resistor, 302: Lead pen switch, 310 …… Clear key, 311… Registration key, 312 …… Mode key, 313 …… Size input mode key, 400 …… Folder, 401 …… Flapper, 500 …… Finisher (sheet binding device), 501… … Flapper, 507… Staple tray, 509… Width adjustment plate (width control plate), 511… Stapler, 512… Stepping motor, 513… Stacker tray, 514 …… Home position sensor, 515… Sorting tray 600: Key group, 604: Copy start key, 618: Duplex key, 621: Multiple key, 625: Staple key, 626: Z-fold key, 628: Sort key, 700: Display group, 711 …… Duplex display, 800… Control device, 801… CPU, 803… ROM, 805 …… RAM.

Continuation of the front page (56) References JP-A-62-32472 (JP, A) JP-A-60-15491 (JP, A) JP-A-64-28163 (JP, A) JP-A-63-109449 (JP) JP-A-64-13364 (JP, A) JP-A-63-51191 (JP, A) JP-A-59-22797 (JP, A) Fully open 1984-59-17442 (JP, U) Really open 63-14255 (JP, U) Actually open 62-35864 (JP, U)

Claims (1)

(57) [Claims] 1. An image forming means for forming an image on a sheet, a stapling means for stapling an arbitrary position of a sheet bundle formed by the image forming means, and a stapling by the stapling means. Instructing means for an operator to directly designate a position to be formed in an image to be formed by the image forming means, and changing means for changing a stapling position by the stapling means according to the position designated by the indicating means. And a sheet binding processing device comprising: