JP4897591B2 - Paper insertion device - Google Patents

Description

  The present invention is provided between a sheet insertion device, in particular, an image forming apparatus and a post-processing device that performs post-processing on a sheet discharged from the image forming apparatus, and a plurality of sheets discharged from the image forming apparatus. The present invention relates to a sheet insertion device that can insert a plurality of sheets inserted into a post-processing apparatus at a predetermined timing.

  Some image forming apparatuses are provided with a paper insertion device such as a post-processing device that performs post-processing of paper on which an image is formed. Some of the paper insertion devices can insert slip sheets, tab sheets, and the like at predetermined positions of a plurality of papers on which images are formed by the image forming device. Such a paper insertion device includes a paper feed tray on which slip sheets and tab sheets can be placed, a paper placed on the paper feed tray and a paper discharge unit capable of discharging paper inserted from the image forming apparatus, and an image And a paper transport unit capable of transporting the paper inserted from the forming apparatus and the paper in the paper feed tray to the discharge unit (see Patent Document 1).

In this paper insertion device, the paper on which the image is formed on the surface by the image forming device is sequentially discharged from the discharge portion, and the tab paper and interleaf paper placed on the paper feed tray are conveyed to the discharge portion at a predetermined timing. The In this manner, the sheet on which the image is formed on the surface by the image forming apparatus, the tab sheet, and the slip sheet are discharged from the discharge unit. Here, the discharge unit is provided with a tray or the like. On the tray, a plurality of sheets on which images are formed by the image forming apparatus, and tab sheets inserted at predetermined positions of the plurality of sheets or a combination of sheets. A stack of paper sheets is stacked.
JP 11-292328 A

  An apparatus as shown in FIG. 4 is conceivable as a sheet processing apparatus having a configuration different from that of Patent Document 1. FIG. 4 schematically shows the configuration of the apparatus. Further, in FIG. 4, Δ attached to the end of the paper indicates the surface of the paper. The paper processing apparatus shown in FIG. 4 includes a paper feed tray 61, a stacking tray 62 disposed below the paper feed tray 61, and a paper on which the paper placed on the paper feed tray 61 can be placed. A holding tray 63 and a paper transport unit 64 capable of transporting the paper in the paper feed tray 61 are provided. In this apparatus, sheets can be stacked on the sheet holding tray 63 in the same state as the sheets stacked on the sheet feeding tray 61. Specifically, the paper placed on the paper feed tray 61 is conveyed in the direction of the stacking tray 62, and the paper is stopped once before the paper trailing edge passes through the reverse roller 65, and then the reverse roller 65 is reversed. As a result, the sheet is reversed from the state of being placed on the paper feed tray 61 and conveyed to the paper holding tray 63, whereby the paper holding tray 63 is loaded in the same state as the loading state on the paper feed tray 61. . The paper holding tray 63 is provided with a paper post-processing unit such as a stapling device, and paper post-processing is performed.

  Here, when a sheet bundle of inserted sheets is placed on the sheet feeding tray 61 as shown in FIG. 5A, when the inserted sheet is conveyed to the sheet holding tray 63 by the sheet conveying unit 64 in the apparatus of FIG. The insertion sheets are stacked on the sheet holding tray 63 together with other sheets (sheets on which images are formed by the image forming apparatus) in the order shown in FIG. 6A. Here, the numbers attached to the sheets in FIGS. 5A and 5B indicate the order of the sheets.

  In this case, when the paper to be loaded on the paper feed tray 61 is a paper for which the orientation and the front and back sides are determined, such as a tab paper, the paper is to be stacked on the paper holding tray 63 in the order as shown in FIG. 6A. In this case, it is necessary to place the sheet bundle on the sheet feeding tray 61 as shown in FIG. 6B. Here, the hexagon provided on the paper in FIG. 6B indicates the position of the tab. This means that if you try to transport the paper from the end on the side where the tabs are formed, the tab paper will be transported diagonally, so the paper will be transported from the end on the side where the tabs are formed. This is because they cannot. Further, the sheet holding tray 63 is generally provided with a mechanism for aligning the width direction of the sheet. However, when the tab sheet is placed on the sheet holding tray 63, the end on the side having the tab is arranged. If the tabs are aligned on the basis, the tab paper cannot be aligned accurately. For this reason, the tab needs to be positioned on the opposite side of the alignment surface of the paper holding tray 63 in a state where the tab paper is placed on the paper holding tray 63.

  In consideration of this, when using a tab sheet or the like whose orientation and front and back are determined, it is necessary to place the sheet as shown in FIG. 6B. In order to place the tab sheets on the sheet feeding tray 61 in such a state as shown in FIG. 6B, as a preparatory work, the order of the tab sheets is set so that the larger number is positioned above. Work is required.

  Here, even if the stacking tray 62 is provided below the sheet feeding tray 61 as shown in FIG. 4 and the sheet bundle placed on the sheet feeding tray 61 is conveyed to the stacking tray 62 one by one, the tab When it is necessary to consider the direction and the front and back sides of the paper like paper, the whole paper bundle can be reversed upside down, but the order cannot be reversed. In other words, the tab sheets placed on the stacking tray 62 are positioned in the lower order in the order of the number of sheets, and the tab positions are the reverse of the state where the tabs are placed on the sheet holding tray 63. For this reason, even if the stack of sheets on the stacking tray 62 is turned over, only the sheet order is not reversed. For this reason, it takes time and effort to reverse the order of the sheets without changing the direction of the sheets.

  An object of the present invention is to facilitate the operation of rearranging the sheets in the reverse order.

  According to a first aspect of the present invention, there is provided a sheet insertion device disposed between an image forming apparatus and a post-processing apparatus that performs post-processing on a sheet discharged from the image forming apparatus, and a plurality of sheets discharged from the image forming apparatus. A sheet insertion device capable of inserting a plurality of sheets inserted at a predetermined timing into a post-processing apparatus, comprising: a sheet feeding tray, a sheet conveying path, a stacking tray, a branch conveying path, and a sheet conveying means. I have. The paper feed tray is a portion on which a plurality of papers can be placed. The paper transport path transports the paper fed from the paper feed tray toward the post-processing device. The stacking tray can stack sheets conveyed by the sheet conveying path. The branch conveyance path is provided to be branched from the paper conveyance path between the stacking tray and the paper conveyance path. The paper transport means feeds the paper placed on the paper feed tray to the paper feed path, and the paper bundle placed on the paper feed tray has the same posture as the paper placed on the paper feed tray and The loading order is reversed and the sheet is transferred to the loading tray via the branch conveyance path.

  In this paper processing apparatus, when a stack of paper is placed on the paper feed tray, the paper placed on the paper feed tray is fed to the paper transport path by the paper transport means. The sheets fed to the sheet conveyance path are respectively transferred to the stacking tray in the same posture as the sheets placed on the sheet feeding tray and with the stacking order reversed. Here, the same posture means the same state as the state of the sheet placed on the sheet feed tray (the same direction as the sheet and the surface facing upward).

  Here, it is possible to easily perform the operation of rearranging the arrangement order of the sheet bundle in the completely reverse order. Further, the posture of the paper can be made the same as the state of being placed on the paper feed tray. Therefore, for example, when tab sheets are placed on a paper feed tray and inserted between sheets of images formed, the tab paper is placed on the paper feed tray in advance and transferred to the stacking tray by the paper transport means. By doing so, the tab sheets placed on the paper feed tray can be in the same posture as that state and the stacking order can be reversed, and the labor of rearranging the workers can be saved. In addition to the case of tab paper, when the placement order of the originals is reversed and reversed, the order of the plurality of originals (paper sheets) is reversed using this paper insertion device. This saves the labor of the operator.

  A paper insertion device according to a second aspect is the paper insertion device according to the first aspect, wherein the paper conveyance path includes a conveyance member for conveying the paper. The transport control means includes a switchback means for reversing the paper transport direction, and a switching means for switching the paper transport direction between the paper transport path and the branch transport path. The paper fed to the paper transport path is reversed from the paper transport direction by the switchback means, and the paper is fed from the rear end to the stacking tray by switching the paper transport direction to the branch transport path side by the switching means.

  In this paper insertion device, the paper conveyance direction is controlled by switching the paper conveyance direction by the switching means and the switchback means.

  Here, for example, the paper in the paper feed tray is positioned at a predetermined position by the paper transport path (for example, when the paper feed tray is disposed above the stacking tray, the trailing edge of the paper is positioned below the stacking tray. The sheet is discharged from the rear end to the stacking tray by the switchback means and the switching means. By repeating such an operation, the sheets can be stacked on the stacking tray in the same posture as the sheets placed on the sheet feeding tray and in the reverse stacking order.

  A paper insertion device according to claim 3 is the paper insertion device according to claim 1 or 2, wherein the paper insertion device is disposed between the image forming device and the post-processing device and can insert paper discharged from the image forming device. A sheet insertion port, and a connection sheet conveyance path connected to the sheet insertion slot and the sheet conveyance path. A sheet on which an image is formed by the image forming apparatus is inserted into the sheet insertion opening.

  Here, the paper on which the image is formed and the paper placed on the paper feed tray are adjusted by adjusting the insertion timing of the paper on which the image is formed by the image forming apparatus and the transport timing of the paper bundle on the paper feed tray. Can be obtained in a predetermined order.

  A paper insertion device according to a fifth aspect is the paper insertion device according to the third aspect, wherein the paper transport means has a rearrangement mode and a normal transport mode as a paper transport mode. Further, a mode selection unit for selecting a paper transport mode of the paper transport unit is further provided. When the rearrangement mode is selected, the paper transport unit feeds the paper placed on the paper feed tray to the paper transport path and feeds the paper bundle placed on the paper feed tray. When the normal transport mode is selected, the paper from the paper feed tray and the paper insertion slot is routed through the paper transport path when the normal transport mode is selected. To the post-processing device.

  Here, the sorting of the sheets can be performed by selecting the sorting mode in the mode selection unit.

  In the present invention, it is possible to easily perform the work of reversing the work of rearranging the sheets in the reverse order.

(Constitution)
FIG. 1 is a schematic view of an image forming apparatus 1 in which an embodiment of the present invention is adopted. The image forming apparatus 1 includes an image forming apparatus main body 2 (image forming apparatus) such as a multifunction peripheral, an external sheet feeding apparatus 3 (sheet inserting apparatus), a sheet post-processing apparatus 4 (post-processing apparatus), and an external sheet feeding apparatus. 3 operation control devices 5 (see FIG. 8).

  In the image forming apparatus main body 2, an image based on image data sent from the outside or read by the document reading unit is printed on a sheet such as a recording sheet and discharged from the side. Further, the image forming apparatus main body 2 is provided with an operation display unit 21 (mode selection unit). The operation display unit 21 controls the sheet transport mode of the external sheet feeding device 3, that is, the order rearrangement mode and Normal transport mode can be selected. Here, the order rearrangement mode is a mode for reversing the stacking order while maintaining the sheet orientation.

  The external paper feeding device 3 (paper processing device) uses, for example, tab paper (in the following description, tab paper will be described as an example, but processing of normal paper or slip sheet is also possible). Is a device for inserting a sheet between a plurality of sheets on which images are printed at a predetermined timing, or for feeding a sheet from the outside to the sheet post-processing device 4, which is an image forming apparatus main body 2 and a sheet It is arranged between the post-processing device 4. Further, as shown in FIG. 2, the external paper feeder 3 includes a paper feed tray 31, a stacking tray 32, a paper transport unit 33, a first paper discharge unit 34, and a first paper insertion port 35. ing.

  The sheet feed tray 31 is a member on which a tab sheet to be conveyed to the sheet post-processing apparatus 4 is placed, and is a plate-like portion. The paper feed tray 31 has a first end 31a connected to a first paper transport path 331 described later. Note that the bundle of tab sheets placed on the sheet feed tray 31 is discharged to the sheet conveyance path 33 in order from the sheet placed on the upper side.

  The stacking tray 32 is a plate-like portion arranged below the paper feed tray 31 so as to be substantially parallel to the paper feed tray 31, and can be loaded with tab sheets from the paper transport path 33.

  The paper transport unit 33 is a portion through which the tab paper discharged from the paper feed tray 31 can pass, and includes a first paper transport path 331, a second paper transport path 332, a third paper transport path 333, and a first paper transport path 333. A four-sheet conveyance path 334 and a plurality of switch rollers 335 are provided. Further, a branched sheet conveyance path 337 is provided which branches from the sheet conveyance path 33. The first paper transport path 331 extends substantially horizontally from the paper feed tray 31 and is disposed on the side of the paper feed tray 31, specifically on the right side of FIG. 1. The second paper transport path 332 extends substantially downward in the vertical direction from the right end of the first paper transport path 331 in FIG. 1 and is connected to the third paper transport path 333. The third paper transport path is provided so as to connect the lower end of the second paper transport path 332 and the first paper discharge section 34. The fourth paper transport path 334 is a portion provided between the first paper insertion port 35 and the first paper discharge portion 34 and extends substantially horizontally. The switch roller 335 is a roller for transporting paper and is provided in the paper transport path 33. The branch sheet conveyance path 337 is provided substantially horizontally so as to connect the second sheet conveyance path 332 and the stacking tray 32. The branch sheet conveyance path 337 is formed so as to extend substantially horizontally from the first end 32 a (the right end portion in FIG. 1) of the stacking tray 32.

  In addition, a branching unit 338 is provided between the second sheet conveyance path 332 and the branch sheet conveyance path 337 to connect the both sheet conveyance paths 332 and 337. A branch mechanism 336 is provided at the full width of the branch portion 338 in the width direction. As shown in FIG. 2, the branching mechanism 336 includes a first branching claw 336a, a second branching claw 336b, a third branching claw 336c, which are substantially triangular members that can rotate about a substantially central portion. have.

  The first branch claw 336 a is a member for switching the transport direction of the paper transported from the first paper transport path 331, and is transported to the branch paper transport path 337 and the through posture for transporting to the second paper transport path 332. Can take a bifurcation posture.

  The second branching claw 336b is a member disposed below the first branching claw 336a, and has a through posture for conveying the sheet conveyed from the upstream side of the second sheet conveying path 332 to the lower side, and a switch roller. The posture can be changed to a branch posture in which the sheet returned from 335 is conveyed to the branch sheet conveyance path 337 side.

  The third branch claw 336c is a member disposed on the branch sheet conveyance path 337 and is conveyed from the second sheet conveyance path 332 via the first branch claw 336a or from the switch roller 335 via the second branch claw 336b. The orientation can be changed between a through posture in which the paper to be conveyed is conveyed toward the stacking tray 32 and a reverse posture in which the paper reversed from the branch conveyance path 337 is conveyed toward the second branch claw 336b.

  The first paper discharge unit 34 is connected to the second paper conveyance path 332 and the third paper conveyance path 333 and is a part for discharging paper from the inside of the external paper feeding device 3 to the sheet post-processing device 4 side. Therefore, it is arranged below the stacking tray 32. The first sheet insertion port 35 is a portion into which a sheet is inserted from the image forming apparatus main body 2, and is connected to the sheet discharge port of the image forming apparatus main body 2.

  As shown in FIG. 1, the sheet post-processing device 4 performs post-processing of paper, and includes a box-shaped outer frame 41 having a paper passage opening through which paper can pass, and stapling for stapling the paper. A processing unit 42 (post-processing device), a post-processing paper transport unit 43 that transports the paper that has passed through the paper passage port to the staple processing unit 42, and a second paper discharge unit 44 that discharges the paper.

  The outer frame 41 is a box-shaped member made of resin, and includes a first sheet stacking tray 411 and a second sheet stacking tray 412 as shown in FIG. The first sheet stacking tray 411 is a part for stacking sheets, and is a plate-like member that is attached to be inclined with respect to the outer wall of the outer frame 41. The second sheet stacking tray 412 is a part for stacking sheets that have been post-processed, and is disposed below the first sheet stacking tray 411.

  The staple processing unit 42 includes a stack unit 421 for aligning the leading end portion and the side portion of each conveyed sheet, and a staple processing unit 422 for binding sheets stacked on the stack unit 421. The staple processing unit 422 is a part for stapling the end portion of the paper placed on the stack unit 421, and includes a staple head on which staples are installed and a staple clinch that receives the staples. Have.

  The post-processing paper transport unit 43 is a part for transporting paper to the staple processing unit 42, and includes a plurality of paper transport rollers 431 and a sheet standby unit 432. The plurality of paper transport rollers 431 are members for transporting paper. The sheet standby unit 432 is a part for temporarily waiting for a sheet, and is disposed in the vicinity of the staple processing unit 422.

  The second paper discharge unit 44 is a part for discharging the paper from the stack unit 421 to the second sheet stacking tray 412 and has a paper discharge roller and a paper discharge port.

  The operation control device 5 functions as a determination unit 51 and a sheet conveyance control unit 52 as shown in FIG. 8 by executing a program.

  The determination unit 51 determines which mode is instructed as the paper transport mode.

  The paper transport control unit 52 controls the posture of the branching claw 336 at a predetermined timing and controls the rotation of each switch roller 335, whereby the paper bundle placed on the paper feed tray 31 is controlled. Are appropriately conveyed according to the selected mode. The paper transport control unit 52 includes a switchback unit 521 and a switching unit. The switchback unit 521 is a unit that reverses the paper transport direction, and reverses the rotation direction of the paper transport roller 431. The switching unit 522 switches the sheet conveyance direction between the second sheet conveyance path 332 and the branch sheet conveyance path 337 by operating the branch claw 336.

(Operation)
<Normal transport mode>
When post-processing is performed on a sheet bundle, the sheet bundle to be processed is placed on the paper feed tray 31, and the post-processing mode is selected on the operation display unit 21.

  In this case, the first branch claw 336a is controlled to a branch posture, and the third branch claw 336c is controlled to a through posture. As a result, the paper placed on the paper feed tray 31 is conveyed to the stacking tray 32 via the first paper conveyance path 331, the second paper conveyance path 332, and the branch paper conveyance path 337. Then, the third branch claw 336c is controlled to the inverted posture. After being transported to the stacking tray 32 side, the switchback roller 335b disposed in the vicinity of the stacking tray 32 rotates reversely and transports the sheet to the branch sheet transporting path 337. Then, the sheet is conveyed to the sheet post-processing device 4 via the second sheet conveyance path 332, the third sheet conveyance path 333, and the first sheet discharge unit 34. In the sheet post-processing apparatus 4, the sheet is conveyed to the staple processing unit 42 via the second sheet conveying unit 43. The above processing is executed sequentially, and the sheet bundle placed on the sheet feed tray 31 is placed on the stack unit 421 in that state. Then, after the stapling process is performed by the staple processing unit 42, the bound sheet bundle is discharged to the second sheet stacking tray 412.

  The normal transport mode is also selected when another colored sheet or the like is inserted between sheets on which an image is formed by the image forming apparatus main body 2. The sheet transport operation in this case is the same as described above, and the sheet fed from the sheet feed tray 31 at a predetermined timing is inserted between the sheets on which the image is formed in the stack unit 421.

<Order sort mode>
Here, when tab sheets are inserted at a predetermined timing between sheets on which images have been formed, tabs are provided on the sheets, so it is necessary to consider the order of tab sheets according to the position of the tabs. There is. In general, when a plurality of tab sheets are stacked to form a bundle, as shown in FIG. 7, the tab sheets are arranged so as to be gradually shifted from one end to the other end. Specifically, the tab of the first (tab paper arranged at the top) tab paper is arranged at one end in the longitudinal direction, and the second (tab paper located below the top tab paper) The tab sheet tabs are arranged slightly offset from the first tab sheet tabs. In this way, the tabs of the last tab sheet are arranged at the other end by gradually shifting the position.

  When such tab sheets are inserted between a plurality of sheets without changing the order, the work for rearranging the order of the tab sheets is necessary as described above. This operation can be automatically performed by selecting the order rearrangement mode. This order rearranging operation will be described below.

  First, a stack of tab sheets arranged in the correct order on the sheet feed tray 31 is placed (see FIG. 7A). In the operation display unit 21, the “order rearrangement mode” is selected as the paper transport mode.

  By the above operation, first, the first branch claw 336a and the second branch claw 336b are controlled to the through posture. In this case, the uppermost tab sheets of the tab sheet bundle on the sheet feeding tray 31 are fed one by one to the first sheet conveyance path 331 and are below the first sheet conveyance path 331 and the second sheet conveyance path 332. Side, more specifically, until the rear end of the tab sheet is positioned below the height position of the stacking tray 32. After the tab paper is transported to the lower side of the second paper transport path 332, the transport is temporarily stopped. Then, the second branch claw 336b is changed to the branch posture and the third branch claw 336c is changed to the through posture, and then the switch roller 335a disposed in the second paper transport path 332 is rotated reversely. Thereby, the tab sheet is fed onto the stacking tray 32 from the rear end via the branch sheet conveyance path 337 (see FIG. 3).

  The above transport operations are sequentially performed, and a tab sheet bundle is formed on the stacking tray 32 with the orientation being reversed and the sheet bundle being placed on the paper feed tray 31 (FIG. 7B). reference).

  By turning the bundle of tab sheets upside down, the state shown in FIG. Then, by carrying out the carrying operation in the normal carrying mode, it is possible to obtain a sheet bundle in which the tab sheets are inserted at the position requested by the user and in the posture.

  The sheet bundle in the state shown in FIG. 7C and FIG. 6A obtained as described above is placed, and an inserter operation is performed, whereby a sheet bundle is formed in the stack portion in the state shown in FIG. 6B.

  Here, even when the arrangement order of the bundle of tab sheets is reversed, the arrangement order can be easily rearranged in the completely reverse order. Further, a sheet bundle having the same posture as the sheet placed on the sheet feeding tray 31 can be obtained. In particular, such a work may be required when the paper loading direction and the front and back sides are determined like tab paper, which is effective. By placing the bundle of tab sheets upside down and placing them on the sheet feed tray 31, a sheet bundle with the tab sheets inserted in a desired state and position can be obtained.

(Other embodiments)
In the above embodiment, the tab sheet is used as the sheet to be placed on the sheet feeding tray. However, the present invention is not limited to this and may be a slip sheet or a normal recording sheet. Also in this case, the order can be easily changed.

FIG. 2 is a diagram illustrating an outline of an image forming apparatus main body, an external sheet feeder, and a sheet processing apparatus. The expanded sectional view of an external paper feeder. FIG. 5 is a schematic diagram illustrating a sheet movement path in a rearrangement mode in an external sheet feeding device. 1 is an overall schematic diagram of a sheet processing apparatus including a stacking tray, a reverse tray, and a stacking tray. FIG. 4 is a diagram illustrating a paper placement order when a paper bundle is placed on a paper feed tray. The figure which shows the state in which the paper is mounted in the stacking tray. The figure which shows a paper stacking order. FIG. 6A is a diagram when the sheet bundle in the state of FIG. 6A is placed on the stack unit. The figure which shows the arrangement | sequence order of the sheet bundle in sort mode. The block diagram of the operation control apparatus of an external paper feeder.

Explanation of symbols

2 Image forming device body (image forming device)
3 External paper feeder (paper processing equipment)
4 Sheet post-processing device (paper post-processing device)
21 Display unit 31 Paper feed tray 31a First end 32 of paper feed tray 32 Stacking tray 32a First end of stacking tray 33 Paper transport unit 34 First paper discharge unit 35 First paper insertion port 51 Judging unit 52 Paper transport control unit 331 1st paper conveyance path 332 2nd paper conveyance path 333 3rd paper conveyance path 334 Roller for conveyance (conveyance member)
337 Branched paper conveyance path 521 Switchback means 522 Switching means

Claims (4)

A plurality of sheets that are arranged between an image forming apparatus and a post-processing apparatus that performs post-processing on a sheet discharged from the image forming apparatus, and are inserted at a predetermined timing between the plurality of sheets discharged from the image forming apparatus. A paper insertion device capable of inserting the paper into the post-processing device,
A paper feed tray on which multiple paper can be placed;
A paper transport path for transporting the paper fed from the paper feed tray toward the post-processing device;
A stacking tray capable of stacking sheets conveyed by the sheet conveying path;
A branch conveyance path provided by branching from the paper conveyance path between the placing tray and the paper conveyance path;
The paper placed on the paper feed tray is fed to the paper transport path, and the paper bundle placed on the paper feed tray is stacked in the same posture as the paper placed on the paper feed tray. A transport control means for reversing the order and transferring to the stacking tray via the branch transport path;
A paper insertion device comprising: The paper transport path has a transport member for transporting paper,
The transport control means includes switchback means for reversing the paper transport direction, and switching means for switching the paper transport direction between the paper transport path and the branch transport path. The paper fed to the paper conveyance path is reversed from the paper conveyance direction by the switchback means, and the paper conveyance direction is switched to the branch conveyance path side by the switching means, so that the paper is fed from the rear end to the stacking tray. Feeding paper,
The paper insertion device according to claim 1. Disposed between the image forming apparatus and the post-processing apparatus;
A paper insertion slot into which the paper discharged from the image forming apparatus can be inserted;
A paper connection path connected to the paper insertion port and the paper conveyance path,
A paper on which an image is formed by an image forming apparatus is inserted into the paper insertion slot.
The paper insertion device according to claim 1 or 2. The paper transport means has a rearrangement mode and a normal transport mode as a paper transport mode,
A mode selection unit for selecting a paper transport mode of the paper transport means;
When the rearrangement mode is selected, the paper transport unit feeds the paper placed on the paper feed tray to the paper transport path, and removes the paper bundle placed on the paper feed tray. When the normal conveyance mode is selected, the sheet is transferred from the sheet feeding tray and the sheet insertion slot when the normal conveying mode is selected. A sheet of paper to the post-processing device via the paper transport path,
The paper insertion device according to claim 3.

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