JP2000118744A - Automatic sheet material conveyance device and picture image formation device provided with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably supply sheet materials mixed and loaded in an automatic sheet material conveyance device by a paper supply roller and a pair of separation parts. SOLUTION: When sheet materials loaded on a sheet loading base are conveyed by a paper supply roller 5 and are separated by a pair of separation parts 6, 8 for conveyance, the paper supply roller 5 is put in the direction parallel with another arrangement position in the direction in which it crosses the direction of paper supply. Consequently, the paper supply roller 5 is brought into contact with only small size sheet material and is not brought into contact with lower large size sheet material when mixed and loaded sheet materials are supplied to prevent overlap feed of next sheet material when mixed and loaded sheet materials are fed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic sheet material transporting device, and more particularly, to an automatic sheet transporting device having a mixed loading function capable of feeding sheet materials of different sizes. The present invention relates to a sheet material automatic conveyance device to be placed and an image forming apparatus including the same.

[0002]

2. Description of the Related Art Conventionally, in a sheet material automatic conveying device having a mixed loading function, the structure will be briefly described with reference to FIGS. 13 and 14. When a sheet material bundle P placed on a sheet placing table 2 is The sheet is sequentially picked up one by one from above the sheet bundle P by the paper feed roller 5 waiting above the sheet bundle P, and is conveyed to a predetermined position of an image reading unit (not shown).

Further, downstream of the pick-up position of the paper feed roller 5, the sheet feed roller 5 separates a plurality of conveyed (double feed) sheets without being separated into one sheet.
A known separating belt 6 and a separating and conveying roller 8 are provided with separating means 6 and 8 formed in a comb shape (the separating and conveying roller 8 and the separating belt 6 rotate clockwise, Reference numeral 5 rotates clockwise from the separation / conveyance roller 8 via a well-known timing belt.)

[0004] The arrangement of the paper feed roller 5 and the separation pair will be described below.

<Arrangement of Paper Feeding Roller 5> The paper feeding roller 5 is capable of feeding paper in order to avoid the entrainment (simultaneous feeding) of a standby sheet material placed on the sheet mounting table 2. It must be arranged within the width L6 of the sheet material of the minimum size.

Because, as shown in FIGS. 11 and 12,
The width (overall width) of the paper feed roller 5 is wider than the width L7 of the uppermost sheet material to be fed, and is wider below the uppermost sheet material than the uppermost sheet material. When the sheet material of L8 exists, the lower sheet material is simultaneously fed during the feeding operation of the uppermost sheet material by the feed roller 5 (during the pickup operation). This is because the sheet material is skewed because only a part of the sheet feed roller 5 is in contact with the sheet material.

Further, the paper feed roller 5 is provided on the sheet mounting table 2 to stabilize the transportability and setability of the sheet material.
It is necessary to approach to the side guide 3 (abutting surface) side as the upper regulating means.

<Arrangement of Separation Pairs> The separation pairs 6, 8 constituted by the well-known separation belt 6 and the separation conveyance roller 8 disposed downstream of the paper feed roller 5.
In order to improve the level of document contamination (hereinafter referred to as edge contamination), it is necessary to suppress the pressure without changing the total pressure required for separation, that is, to increase the width.

[0009]

However, the configuration as in the above conventional example (separation pairs 6, 8 are wide,
, The sheet feeding performance of the sheet material, especially the feeding performance of the wide sheet material, tends to decrease when the sheet materials are mixed.

[0010] In detail, most of the conventional sheet material automatic conveying devices without the mixed loading function have a configuration in which each roller is positioned symmetrically with respect to the center of each sheet material size in order to stabilize the sheet material feeding performance. It is arranged to stabilize the force acting on the sheet material being fed.

On the other hand, the conventional sheet material automatic conveying apparatus having the mixed loading function is such that the separating force by the separating belt 6 F1 the separating and conveying force by the separating and conveying roller 8 F2 When a sheet material is fed to the separation pair by the feed roller 5 and the conveying direction of the sheet material is defined as a positive direction and the opposite direction is defined as a negative direction, the sheet material is defined as a force F4. Has a paper feed force F
3 and F4 in one direction (in the direction to return the sheet material) from the lower sheet material, and due to the imbalance of these two forces, a rotational moment is generated in the fed sheet material around a certain point. When the fed sheet material enters the separation pair, -F1 + F2 +
Four forces F3 to F4 act, and a rotational moment is generated due to poor balance, which tends to skew (see FIG. 9).

Accordingly, in order to stabilize the sheet feeding performance of the sheet material, the center of each sheet material must be
Arrange the paper feed rollers at the symmetrical position (center reference arrangement)
In order to provide the mixed loading function, it is necessary to arrange the sheet feeding roller (one-sided reference arrangement) within the width of the sheet material of the minimum size that can be fed and toward the sheet material abutting surface (side guide 3) side. For this reason, there has been a conflict between the stability of the sheet feeding performance of the automatic sheet material transporting apparatus and the mixed loading function.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic sheet material transporting apparatus having a mixed loading function, in which the feeding of the sheet material is stabilized.

[0014]

The invention according to claim 1 is
A sheet mounting table on which the sheet material is mounted, sheet feeding means for feeding the sheet material on the sheet mounting table, and separation means for separating the sheet materials fed by the sheet feeding means one by one. The paper feed means is characterized in that the arrangement position can be changed in a direction intersecting the paper feed direction of the sheet material.

According to a second aspect of the present invention, the paper feeding means comprises:
A paper feed roller that is rotatably driven, a paper feed shaft that rotatably supports the paper feed roller, and a paper feed shaft that has a free end at its free end, and a base that pivots about a rotation center axis. A swinging member supported,
Wherein the swinging member is detachably attached to the rotation center shaft, and its disposition position can be changed in a direction intersecting the sheet feeding direction.

According to a third aspect of the present invention, the paper feeding means includes:
A plurality of paper feed units are arranged along the rotation center axis, and the paper feed shafts of the plurality of paper feed units are detachable, so that the arrangement position of the paper feed units can be changed in a direction intersecting the paper feed direction. It is characterized by having done.

According to a fourth aspect of the present invention, the separating means includes:
It is composed of upper and lower rotating bodies, and one of the rotating bodies can change its disposition position in a direction intersecting the sheet feeding direction.

According to a fifth aspect of the present invention, the sheet mounting table includes regulating means for abutting one side of the sheet material in a direction intersecting the sheet feeding direction to align the sheets. When sheet materials of different sizes are mixed in
A part of the paper feeding unit and the separation unit may be arranged at a position closer to the regulating unit.

[Operation] Based on the above configuration, the paper feeding means for feeding the sheet material on the sheet mounting table intersects the paper feeding direction in accordance with the mode of the sheet material mounted on the sheet mounting table. The arrangement position is selected and changed in the direction.

For example, when the sheets stacked on the sheet mounting table are not in a mixed state, the sheet feeding means is disposed at a position symmetrical with a center line along the conveying direction of the stacked sheet materials. , If the sheet material is in a mixed state,
The paper feeding means can change the disposition position on the side of the smallest sheet material of the placed sheet materials.

Thus, the automatic sheet material feeding apparatus stably feeds the sheet by appropriately operating the mixing function while maintaining the sheet feeding performance of the mixed sheet material.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment First, an example of an image forming apparatus main body to which an automatic sheet material conveying apparatus according to the present invention can be applied will be described with reference to FIG.

The ADF 2, which is one document transport device (sheet material transport device), has a document tray 4 above, and a wide belt 7 wound around a drive roller 36 and the other turn roller 37 below it. Are located. The document (sheet material) P on the document tray 4 is sequentially separated and fed from the uppermost sheet by separation means 6 and 8, and is conveyed to a platen 3 which is a reading position (image reading unit) of the copying machine main body.

The wide belt 7 abuts on the platen 3 so as to be freely rotatable in the normal and reverse directions. The wide belt 7 places the sheet material document P conveyed from the document tray 4 at a predetermined position on the platen 3, 3 to the sheet tray 10
Take it up. The document P is placed on the document tray 4 in the order of 1 page (2 pages), 3 pages (4 pages),.

A copying machine main body as an image forming apparatus main body includes:
It comprises an image input unit 200 '(hereinafter referred to as a reader unit) and an image output unit 300 (hereinafter referred to as a printer unit).

The reader unit 200 'optically reads image information recorded on the original P, photoelectrically converts the image information, and inputs the image data as image data.
2. Scanner unit 204 having mirror 203
And mirrors 205 and 206, a lens 207, an image sensor 208, and the like. The printer unit 300 is an image forming unit using well-known electrostatic latent image formation.

Next, a printer unit 30 as an image output unit
0 will be explained.

Reference numeral 800 denotes an upper cassette. Sheet materials in the cassette are separated and fed one by one by the action of a separation claw and a feeding roller 801, and are guided to registration rollers 806.
Reference numeral 802 denotes a lower cassette. Sheet materials in the cassette are separated and fed one by one by the action of a separation claw and a feeding roller 803, and are guided to registration rollers 806. Reference numeral 804 denotes a manual feed guide for guiding sheet materials one by one to a registration roller 806 via a roller 805. Reference numeral 808 denotes a sheet material stacking device (deck type), which includes a middle plate 808a that moves up and down by a motor or the like. It is guided to the roller 810.

Reference numeral 812 denotes a photosensitive drum, reference numeral 813 denotes a reading optical system, reference numeral 814 denotes a developing device, reference numeral 815 denotes a transfer charger, and reference numeral 816 denotes a separation charger, constituting an image forming section.

Reference numeral 817 denotes a conveying belt for conveying the sheet material on which an image is formed, 818 denotes a fixing device, 819 denotes a conveying roller, and 820 denotes a flapper. The sheet material on which the image has been formed is guided to the main body discharge roller (main body discharge unit) 821 by the flapper 820, and is discharged to the downstream sheet processing apparatus.

An image is formed on the photosensitive drum according to the set number of copies for one original placed on the platen, and the sheet material for the number of copies is stored in the cassette 80.
0, 802, or the deck 808, the image is fed each time an image is formed on the photosensitive drum. The registration between the image on the photosensitive drum and the sheet material is performed by a registration roller 806.

When the required number of copies are formed, the original is discharged from the platen, and the next original is positioned on the platen. Hereinafter, the same applies.

Reference numeral 900 denotes an intermediate tray which, when forming an image on both sides of a sheet material or forming an image on one side of the sheet material (multiple), once, forms a sheet material on which an image is formed. Stock it. 901 is a conveying roller, 9
02 is a transport belt, 903 is a flapper, 904 is a transport belt, and 905 is a transport roller. In the case of double-sided copying, the sheet material is guided to the intermediate tray 900 through the path 906.

The sheet material has the image surface facing upward. In the case of multiple copying, the sheet material is guided to the intermediate tray 900 through the path 907. The sheet material has the image side facing down.

The sheet material stacked on the intermediate tray 900 includes auxiliary rollers 909 and 910, a pair of forward / reverse separation rollers 9
The sheets are separated one by one from below by the action of 11 and re-fed. The re-fed sheet material is transported by rollers 913 and 9
14, 815, roller 810, registration roller 806
Through to the image forming unit. After image formation, the paper is discharged in the same manner as described above.

In accordance with the number of copies set for one document placed on the platen, first, single-sided copies are made and they are stacked on the intermediate tray 900. After that, the original is reversed on the platen and guided again on the platen, and this image is read by the number of copies. The read image is formed on a sheet material re-fed from the intermediate tray 900 every time the image is read. They are sorters 822
Are sorted in page order. On the other hand, there is also a method in which only one copy is created each time a document is rotated by the automatic document feeder. According to this method, even when a plurality of copies are made, a copy group with the same page order can be obtained in order, so that a necessary number of copies can be obtained separately without a sorter. When making a two-sided copy in this way, read both sides of one original sheet continuously, copy and eject both sides of the sheet material, and then eject the original sheet. If you repeat over and over,
A divided double-sided copy group is obtained.

An image-formed sheet discharged from the copying machine main body 1 'is discharged to a sheet processing apparatus (also referred to as a finisher) 1.

In the case of the non-sort mode, the sheet conveyed from the copying machine main body has a buffer roller, a flapper,
The sheet is discharged to the sample tray 201 by a discharge roller via the non-sort mode path 21. In the sort mode, the sheet is temporarily loaded on the processing tray 130 as an intermediate tray by the discharge roller 7 via the buffer roller, the flapper 10, and the sort mode path 22. The sheet bundle on the processing tray 130 is aligned on both sides in a direction intersecting with the sheet conveying direction by an alignment member (not shown), and the rear end of the sheet is stapler 100 if necessary.
After the binding process in (101), the bundle is discharged onto the stack tray 200 by the bundle discharge roller pair 180.

Next, the details of the automatic sheet conveying apparatus according to the present invention will be described.

FIG. 1 is a drawing that best illustrates the features of the present invention. In FIG. 1, P denotes a sheet bundle, 4 denotes a sheet mounting table, and 3 denotes a sheet abutting plate on the sheet mounting table. Side guides (regulating means), 5 is a paper feed roller (paper feeding means) which can be easily moved in a direction intersecting the paper feeding direction,
6 is a separation belt (rotating body), 7 is a sheet feeding shaft also serving as a weight of a sheet feeding roller, 8 is a separation conveyance roller (rotating body), 53 is a swing arm (swing member), and 60 is a swing arm 53 Is the rotation center axis 60 of the motor.

In the above configuration, the sheet material bundle P placed on the sheet placing table 4 is rotated by the swing arm 53 about a rotation center axis 60 as the rotation center. Land on the uppermost surface of the sheet bundle P. Thereafter, when the paper feed roller 5 is rotated, only the uppermost paper is rotated in a clockwise direction, and the separation belt 6 and the separation / conveyance roller 8 constitute a separation unit (pair).
6 and 8 (see FIG. 2).

In FIG. 4, the swing arm 53 has fork-like legs 53a and 53b formed on the base side thereof, and is detachably attached to the rotation center shaft 60 inside its free end. A fitting hole 53c and an opening 53d are formed respectively. The above-mentioned hole 53c is connected to the rotation center shaft 60.
The paper feed roller 5 is rotated by the rotation center shaft 60.
However, it can be attached and detached at a different position in a direction intersecting with the sheet feeding direction. The leg 53 of the swing arm 53
a and 53b have appropriate elasticity.

Next, a description will be given of the operation at the time of mixed loading with reference to FIGS.

In the automatic sheet feeding apparatus according to the present invention, normally (when not mixed), as shown in FIG. 1, all the sheet feeds of the sheet bundle P are symmetrically positioned with respect to the center CL of each sheet size. -Conveyance means (sheet feed roller 5, separation belt 6, separation conveyance roller 8, etc.) are arranged.
Therefore, even when the sheet material is picked up by the sheet feeding roller 5, the sheet material on the sheet material mounting table 2 is fed in a stable and well-balanced state, and even if the sheet material is further conveyed downstream, the sheet material is balanced. The paper feeding operation can be completed without breaking the image.

When a mixed original (including an original smaller than the distance L2 from the side guide abutment plate) is placed on the sheet placing table 2 by the user, for example, the uppermost sheet material P1 is not more than L2. In the case where the next sheet material P2 (document immediately below the uppermost sheet material P1) has a width of L1, if the arrangement of the paper feed roller 5 is still in the state of FIG. During the pickup operation by the paper roller 5,
Since the next sheet material P2 also comes into contact, it is picked up at the same time as the uppermost sheet material P1, and as a result, the next sheet material P2 may cause a skew (skew) action.

However, in the automatic sheet conveying apparatus of the present invention, the disposition (arrangement position) of the sheet feeding roller 5 can easily remove the swing arm 53 from the rotation center shaft 60. Therefore, as shown in FIG.
From the pivot shaft 60 of the swing arm 53,
As shown in FIG. 2, it can be offset to the side guide 3 side (sheet material abutting surface side).

As a result, during the pick-up operation of the uppermost sheet material P1 by the paper feed roller 5, the paper feed roller 5 does not come into contact with the next sheet material P2, and the lower sheet material as described above is prevented. It is possible to avoid skewing of the material. In the present embodiment, an example has been described in which the fitting portion is opened and closed by utilizing the elastic deformation of the swing arm 53, thereby removing the swing arm 53 from the rotation center axis. Not limited to

As described above, when the sheet materials are mixed,
Feed roller to small size sheet material side (side guide 3 side)
In addition, by changing the disposition position, the lower sheet material is not fed along when the narrow sheet material is conveyed, and the sheet material is stably transferred while the mixed sheet material is conveyed. Can be fed.

Second Embodiment FIGS. 5 and 6 are views showing a second embodiment of the present invention. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the figure, 5a is a fixed paper feed roller,
Reference numeral 5b denotes a paper feed roller movable in a direction intersecting the paper feed direction, and reference numeral 7 denotes a paper feed shaft also serving as a weight of the paper feed roller. The paper feed shafts 7 of the paper feed rollers 5a and 5b can be connected to each other after being removed from the swing arm 53 (FIG. 7).

In the above configuration, the sheet material bundle P placed on the sheet placing table 4 is rotated about the fixed central axis 60 of the swing arm 53 by the rotation of the sheet feeding roller 5a. , 5b land on the uppermost surface of the sheet bundle P. After that, when the paper feed rollers 5a and 5b rotate, only the uppermost paper is separated by the separation belt 6 and the separation conveyance roller 8 which rotate clockwise.
6 and 8 (see FIG. 2).

The operation at the time of mixed loading will be described below with reference to FIGS.
This will be described with reference to FIG.

The sheet material automatic conveying apparatus according to the present invention normally (when not mixed) normally feeds all the sheets at a position symmetrical with respect to the center of each sheet material size of the sheet material bundle P as shown in FIG. -Conveying means (paper feed roller 5, separation belt 6, separation conveyance roller 8) are arranged. Therefore, even when the sheet material is picked up by the sheet supply roller 5, the sheet material on the sheet material mounting table 2 is fed in a stable and well-balanced state, and the sheet material is not lost even if it is further conveyed downstream. The paper feeding operation can be completed.

Mixed document (distance L5 from side guide 3)
When the uppermost sheet material P1 (including a document smaller than the uppermost document) is placed on the sheet placing table 2 by the user, for example, the uppermost sheet material P1 is L5 or less. (Document) has a width of L1, and if the arrangement of the paper feed rollers 5a and 5b remains as shown in FIG. 5, the sheet material also comes into contact with the next sheet material P2 during the pickup operation by the paper feed roller. Therefore, the lower sheet material P2 is picked up at the same time as the uppermost sheet material P1,
As a result, the next sheet material P2 may have a skew action.

However, in the sheet material automatic conveying apparatus of the present invention, the sheet feeding shaft 7 of the sheet feeding roller 5b is removed,
As shown in FIG. 6, the paper feed shafts 7 are connected to each other (one is a male screw and the other is a female screw; see FIG. 7) and the paper feed roller 5b is connected.
Can be easily changed.

Therefore, as shown in FIG.
b is in a state where it is offset toward the side guide (sheet material abutting surface) side.
During the pick-up operation for the uppermost sheet material P1 by a and b, the paper feed roller 5b does not come into contact with the next sheet material P2, and the next sheet material P2 as described above.
Can be suppressed. Although the shape of the paper feed shaft 7 is different in the present embodiment, the shape may be the same, and the coupling method is not limited to this.

As described above, even when a plurality of paper feed rollers are provided, one of the paper feed rollers may be used when the sheets are mixed.
It can be changed to the arrangement position on the side guide 3 side, and the same operation and effect as in the first embodiment are achieved.

<Embodiment 3> FIG. 6 is a drawing that best illustrates the features of Embodiment 3 of the present invention. In the figure, 5 is a paper feed roller which can be easily moved in a direction intersecting the paper feed direction, 6 is a separation belt, 7 is a paper feed shaft also serving as a weight of the paper feed roller, 8 is a separation conveyance roller, 53 , A swing arm; and 60, a rotation center axis of the swing arm 53.

In the above configuration, the sheet material bundle P placed on the sheet placing table 4 is rotated by the swing arm 53 about a rotation center axis 60 as the rotation center, so that the sheet feeding roller 5 is rotated. Land on the uppermost surface of the sheet bundle P. After that, when the paper feed roller 5 rotates, only the uppermost paper is separated by the separation belt 6 rotating clockwise and the separation transport roller 8 rotating counterclockwise. 8 (see FIG. 2).

The third embodiment is different from the first and second embodiments.
The difference from the second embodiment is that the configuration and arrangement of the separation units (pairs) 6 and 8 can be adapted to the mixed loading of sheet materials, similarly to the feed roller 5.

In detail, it can be understood by comparing the configurations and arrangements of FIGS. 6 and 8 with each other.
Are symmetrical and wide with respect to the sheet material transport center CL, whereas the separating portions (pair) 6, 8 in FIG. Smaller than.

For example, in the case of the first and second embodiments, if the sheet materials P1 and P2 are simultaneously fed,
The portion where P1 and P2 overlap (the portion with P1) is smoothly separated due to the difference in friction coefficient between the separation belt 6 and the separation conveyance roller 8, and only the sheet material P1 is conveyed downstream. Once the sheet material P2 alone enters the separation sections (pairs) 6, 8, it is conveyed downstream without being returned by the separation belt 6, and the sheet materials P1 and P2 become heavy. Sometimes they were sent.

However, when the configuration and the arrangement of the third embodiment are adopted, since the separation portions (pairs) 6 and 8 are not arranged only in the portion of the sheet material P2, the case (sheet) described above is used. Double feeding of materials) can be reliably prevented.

Although the third embodiment has been described in combination with the second embodiment, the first embodiment may be used.

As described above, in the present embodiment, the separation pairs 6 and 8 for separating the sheet material fed by the feed roller 5 also intersect with the feed direction similarly to the feed roller 5. Since the arrangement position can be freely changed in the direction, it is possible to more reliably prevent the entrainment of the next sheet material when feeding the mixed sheet material.

[0066]

As described above, according to the present invention,
Since the paper feeding unit that conveys the sheet placed on the sheet detection unit can be changed to a different arrangement position in the direction that intersects with the paper feeding direction, normal feeding of sheet materials of the same size While maintaining the sheet feeding performance at the time of sheet feeding, the sheet stacking function for feeding the mixed sheet material is also held, so that the sheet feeding of the mixed sheet material can be stably performed.

[Brief description of the drawings]

FIG. 1 shows a normal state (not mixed) when a sheet material is fed in an automatic sheet material conveying apparatus according to a first embodiment of the present invention.
FIG.

FIG. 2 is a top view of the paper feed roller disposition portion when the sheets are mixed when feeding the sheet material.

FIG. 3 is a sectional view taken along line CC of FIG. 1;

FIG. 4 is a side view showing a state where a swinging member and a paper feed roller are fitted and removed;

FIG. 5 shows a normal state (not mixed) when a sheet material is fed in the automatic sheet material feeding apparatus according to the second embodiment of the present invention.
FIG.

FIG. 6 is a top view of the paper feed roller disposition portion when sheets are mixed when feeding a sheet material.

FIG. 7 is an operation view showing a connected state of the paper feed shaft 7;

FIG. 8 is a top view of a sheet feeding roller disposition portion of the automatic sheet conveying apparatus according to the third embodiment of the present invention when sheets are mixed during sheet feeding.

FIG. 9 is a model diagram showing a state of a force acting on a sheet material when feeding a mixed sheet material.

FIG. 10 is a vertical sectional front view of an image forming apparatus main body to which the automatic sheet material conveying apparatus according to the present invention is applicable.

FIG. 11 is a top view showing an arrangement portion of a conventional paper feed roller and a separation pair.

FIG. 12 is a sectional view taken along line BB in FIG. 11;

FIG. 13 is a sectional view taken along the line AA of FIG. 11;

FIG. 14 is a top view showing the arrangement of the paper feed roller and the separation pair.

[Explanation of symbols]

P Sheet material bundle P1 Uppermost sheet material P2 Sheet material below P1 CL Sheet material center line 2 Sheet mounting table 3 Side guide as sheet material abutting plate (regulation means) 5, 5a, (b) feeding Paper roller (paper feeding means) 6 Separation belt 7 Paper feeding shaft also serving as weight of paper feeding roller 8 Separation conveyance roller 6,8 Separation pair, separation unit (separation means) 9 Timing belt 53 Swing arm (Swing member) 60 Center axis of rotation of swing arm

Continued on the front page F term (reference) 3F102 AA01 AB01 BA02 BA04 BB04 BB05 CA03 CB02 EA02 3F343 FA02 FB01 FC01 GA01 GB01 GC01 GD01 HA12 HB04 HE04 HE20 HE23 JA19 JD03 JD10 JD39 LA04 LA13 LA14 LC02

Claims (6)

[Claims] 1. A sheet mounting table on which a sheet material is mounted, sheet feeding means for feeding the sheet material on the sheet mounting table, and separation for separating the sheet materials fed by the sheet feeding means one by one And a separating unit that changes a position of the sheet feeding unit in a direction that intersects a sheet feeding direction of the sheet material. 2. The paper feeding means includes: a paper feeding roller driven to rotate; a paper feeding shaft rotatably supporting the paper feeding roller;
A swinging member pivotally supported on a free end having the paper feeding shaft at a free end and a base at a rotation center axis, wherein the swinging member is detachable from the rotation center axis. ,
2. The sheet material automatic conveyance device according to claim 1, wherein the arrangement position can be changed in a direction intersecting the sheet feeding direction. 3. A plurality of paper feed means are provided along the rotation center axis, and the paper feed shafts of the plurality of paper feed means are made detachable so that the paper feed means can be disposed at a desired position. 3. The sheet material automatic conveying apparatus according to claim 2, wherein the sheet material can be changed in a direction intersecting the sheet feeding direction. 4. The apparatus according to claim 1, wherein the separating means comprises upper and lower rotating bodies, and one of the rotating bodies can change an arrangement position in a direction intersecting a sheet feeding direction. Sheet material automatic conveyance device. 5. The sheet mounting table includes regulating means for abutting one side in a direction intersecting with a sheet feeding direction to align sheets, and sheet sheets of different sizes are placed on the sheet mounting table. 5. The automatic sheet material transporting apparatus according to claim 1, wherein when a plurality of sheets are mixed, the positions of a part of the sheet feeding unit and the separation unit are changed on the regulation unit side. 6. An automatic sheet material conveying apparatus according to claim 1, wherein said image forming means forms an image on a recording sheet based on image information of the sheet material conveyed by said automatic sheet material conveying apparatus. An image forming apparatus comprising: