Recording medium processing device

Abstract

The distance of the rotating transporter to the recording medium or storage tray is finely adjusted. [Solution] A recording medium processing apparatus 20 stacks multiple recording media P with their ends aligned, comprising: a storage tray 24 on which multiple recording media transported from a transport path are placed in a stacked state; a regulating member 25 provided at one end of the storage tray for aligning the ends of the multiple recording media; a rotating transport body 31 for transporting the recording media on the storage tray toward the regulating member; and a support part 32 that rotatably supports the rotating transport body, wherein an adjustment part 40 is provided on the support part for adjusting the distance of the rotating transport body to the storage tray or the recording media on the storage tray.

Description

Technical Field

[0001] The present invention relates to a recording medium processing apparatus.

Background Art

[0002] An image forming apparatus is provided with a recording medium processing apparatus that stacks the recording media discharged onto a storage tray from the discharge part of the conveyance path in a state where the ends of the recording media are aligned. The recording medium processing apparatus includes a storage tray on which the recording medium is discharged, a stopper that aligns the ends of the recording medium, and a rotary conveyor that sends the recording medium toward the stopper side. The recording medium processing apparatus can move the rotary conveyor closer to or away from the recording medium on the storage tray by rotational driving of a motor. Then, the recording medium is conveyed toward the stopper by the rotation of the approaching rotary conveyor and stacked in a state where the ends are aligned (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The conveyance force of the rotary conveyor varies depending on the distance from the recording medium. If the conveyance force is weak, the recording medium will not reach the stopper, and if it is strong, there is a risk that the recording medium will be pressed against the stopper and cause buckling. Therefore, fine adjustment of the distance of the rotary conveyor with respect to the recording medium or the tray is required. However, conventional devices had a large number of components between the motor that moves the rotating conveyor closer to or further away from the conveyor itself. Therefore, the device was susceptible to the effects of the machining precision of these components. Consequently, it was difficult to fine-tune the distance of the rotating conveyor to the recording medium or tray by controlling the motor's movement.

[0005] The present invention aims to fine-tune the distance of a rotating transporter to a recording medium or storage tray. [Means for solving the problem]

[0006] To solve the above problems, the present invention provides a recording medium processing apparatus, A recording medium processing device that stacks multiple recording media with their ends aligned, A storage tray on which multiple recording media transported from the transport route are placed in a stacked state, A regulating member is provided at one end of the storage tray for aligning the ends of multiple recording media, A rotating transport body that transports the recording medium on the storage tray toward the regulating member, It has a support part that rotatably supports the aforementioned rotating conveyor, The support portion is provided with an adjustment unit for adjusting the distance of the rotating transport body to the storage tray or the recording medium on the storage tray. [Effects of the Invention]

[0007] According to the present invention, it is possible to finely adjust the distance of the rotating transport body to the recording medium or storage tray. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram of the image forming apparatus in the first embodiment. [Figure 2] This is a front view showing the internal configuration of the post-processing device when the transport unit is in the retracted position. [Figure 3] This is a front view showing the internal configuration of the post-processing device when the transport unit is in the transport position. [Figure 4] It is a perspective view showing a partial configuration of the post-treatment device in a state where the transfer unit is in the retracted position. [Figure 5] It is a perspective view showing a partial configuration of the post-treatment device in a state where the transfer unit is in the transfer position. [Figure 6] It is a side view of the transfer unit in the retracted position as seen from the left. [Figure 7] It is a side view of the transfer unit in the transfer position as seen from the left. [Figure 8] It is an exploded perspective view of the transfer unit. [Figure 9] It is a side view of the support portion where the holder and the movable member are in the standard position. [Figure 10] It is a side view of the support portion where the holder and the movable member form the maximum angle. [Figure 11] It is a side view of the support portion where the holder and the movable member form the minimum angle. [Figure 12] It is a side view of the transfer unit when the holder and the movable member form the maximum angle as seen from the left. [Figure 13] It is a side view of the transfer unit when the holder and the movable member form the minimum angle as seen from the left. [Figure 14] It is an operation explanatory diagram of the post-treatment device. [Figure 15] It is an operation explanatory diagram of the post-treatment device following FIG. 14. [Figure 16] It is an operation explanatory diagram of the post-treatment device following FIG. 15. [Figure 17] It is an operation explanatory diagram of the post-treatment device following FIG. 16. [Figure 18] It is an operation explanatory diagram of the post-treatment device following FIG. 17. [Figure 19] It is an operation explanatory diagram of the post-treatment device following FIG. 18. [Figure 20] It is a perspective view of the transfer unit in the second embodiment. [Figure 21] It is an enlarged perspective view of the transfer unit in the second embodiment. [Figure 22]This is a side view of the transport unit, seen from the left, when the movable member is in its rearmost position relative to the holder. [Figure 23] This is a side view of the transport unit, seen from the left, when the movable member is in its furthest forward position relative to the holder. [Modes for carrying out the invention]

[0009] [First Embodiment] A first embodiment of the present invention will be described below with reference to the drawings. The scope of the present invention is not limited to the embodiments disclosed below or the examples shown in the drawings.

[0010] Figure 1 is a front view of the image forming apparatus 100 in this embodiment. The image forming apparatus 100 forms a color image on a recording medium P such as cut paper using an electrophotographic method. The image forming apparatus 100 forms an image based on image data obtained by reading an image from a document, or image data received from an external device. The image forming apparatus 100 includes an operation unit 11, a document reading unit 12, an image forming unit 13, a supply unit 14, a post-processing device 20, etc.

[0011] The operation unit 11 outputs operation signals based on user operations to a control unit (not shown). The operation unit 11 includes various operation keys, a display unit, and a touchscreen. The various operation keys receive various instruction operations from the user. The touchscreen is formed to cover the display screen of the display unit. The touchscreen receives touch operations on the display screen and detects the touch position. The display unit consists of an LCD (Liquid Crystal Display). The display unit displays various screens according to the instructions of the display signals input from the control unit.

[0012] The document scanning unit 12 includes an ADF (Automatic Document Feeder), a scanner, and the like. The document scanning unit 12 reads the image of the document and outputs the resulting image data to the control unit.

[0013] The image forming unit 13 forms an image on the recording medium P supplied from the supply unit 14. The image forming unit 13 is equipped with photosensitive drums corresponding to yellow, magenta, cyan, and black. The image forming unit 13 further includes an intermediate transfer belt, a secondary transfer roller, a fixing unit, an inversion mechanism, and the like.

[0014] The image forming unit 13 uniformly charges the photoreceptor drum for each color, then scans and exposes it with a laser based on the image data for each color to form an electrostatic latent image. Next, the image forming unit 13 deposits toner of the color corresponding to the electrostatic latent image on the photoreceptor drum for each color, thereby developing the electrostatic latent image. Furthermore, the image forming unit 13 temporarily transfers the toner images of each color formed on the photoreceptor drums of each color onto the intermediate transfer belt. Then, the image forming unit 13 transfers the color toner images on the intermediate transfer belt onto the recording medium P all at once using the secondary transfer roller. The fixing unit fixes the secondary transferred color toner image onto the recording medium P by heating and pressurizing.

[0015] The supply unit 14 is equipped with multiple supply trays, and the supply unit 14 supplies the recording media P of the selected supply tray to the image forming unit 13. Each supply tray individually stores recording media P of a predetermined paper type and size.

[0016] [Post-processing equipment: overall configuration] Figures 2 and 3 are front views showing the internal configuration of the post-processing device 20. Figures 4 and 5 are perspective views showing a part of the configuration of the post-processing device 20. Figures 2 and 4 show the transport unit 30 (described later) in the retracted position, while Figures 3 and 5 show the transport unit 30 in the transport position where it is performing transport.

[0017] The image forming apparatus 100 has an output tray 15 on which the image-formed recording medium P is placed after being discharged outside the machine. The post-processing device 20 is positioned in front of the output tray 15 in the transport path of the recording medium P. In the following explanation, the horizontal direction is defined as the side of the discharge tray 15 relative to the post-processing device 20 being "front" and the side of the image forming unit 13 being "rear". The horizontal direction perpendicular to the front-back direction is defined as the left-right direction. In this case, when facing forward, the left hand side is defined as "left" and the right hand side as "right". The vertically upward direction is defined as "up" and the vertically downward direction is defined as "down".

[0018] The post-processing device 20 performs post-processing on the recording medium P on which an image has been formed by the image forming unit 13, as needed. Post-processing includes, for example, cutting, sorting, stapling, punching, folding, and binding. All of these post-processing operations require stacking multiple recording media P with their edges aligned before performing the specific processing. In other words, the post-processing device 20 functions as a recording medium processing device that stacks multiple recording media P with their edges aligned. The following description illustrates a post-processing device 20 that performs stapling. However, the post-processing device 20 may perform any process that stacks multiple recording media P with their edges aligned, not limited to stapling.

[0019] The post-processing device 20 includes a path member 21, a transport unit 22, a sorting member 23, a storage tray 24, an end stopper 25, and a housing 26. Furthermore, the post-processing device 20 includes a transport unit 30, a moving mechanism 50, a staple unit 27, and the like.

[0020] As shown by the dashed lines in Figures 2 and 3, the path member 21 has a transport path formed inside that is connected to the transport path of the image forming unit 13. A transport section 22 is located at the front end of the path member 21, which is downstream in the transport direction.

[0021] The transport unit 22 has a plurality of drive rollers 221 and driven rollers 222 arranged vertically, and a transport motor 223 that serves as the transport drive source. Each drive roller 221 is fixedly mounted on a drive shaft 224 that runs in the left-right direction. The drive shaft 224 is driven by a conveyor motor 223 via a belt, which simultaneously imparts rotation to each drive roller 221. Each driven roller 222 is rotatably supported in pairs on two vertically movable rotating shafts 225 above the drive shaft 224. Each driven roller 222 is pressed downward by each rotating shaft 225 so as to press against its corresponding drive roller 221. This allows the drive rollers 221 and driven rollers 222 to stably feed the recording medium P forward with constant pressure.

[0022] Two sorting members 23 are provided side by side. Each sorting member 23 is located in front of the conveying unit 22. A discharge tray 15 is located in front of the sorting members 23. The sorting member 23 is a plate-like body that can generally be positioned along the transport path, and its front end is pivotally supported by the housing 26 along a shaft in the left-right direction. This axis allows the rear end of the distribution member 23 to swing up and down. Then, with its rear end swinging upward, the entire surface of the sorting member 23 is retracted to the upper side of the transport path. In this retracted state, the sorting member 23 allows the recording medium P from the transport unit 22 to pass underneath and be transported directly to the discharge tray 15. Furthermore, a storage tray 24 is positioned below the sorting member 23. Therefore, the downward swinging of the sorting member 23 allows the rear end of the recording medium P sent out from the transport unit 22 to be sent towards the storage tray 24. The swinging motion of the distribution member 23 is provided by the moving mechanism 50, which will be described later.

[0023] Two storage trays 24 are provided side by side. Each storage tray 24 has a mounting surface that is inclined diagonally downwards and to the rear. Therefore, the recording medium P that is placed on the storage tray 24 can easily move backward. Furthermore, the rear end of the storage tray 24 is provided with a plurality of roughly U-shaped end stoppers 25 that open forward. Each end stopper 25 has a width in the left-right direction that is sufficiently narrower than the width of the recording medium P. The end stoppers 25 are arranged side by side along the left-right direction.

[0024] The recording medium P, which has been placed on the storage tray 24, can be brought to the innermost part of the end stopper 25 by the transport unit 30. Therefore, by successively bringing the transported recording media P against the end stopper 25, the ends of the recording media P can be aligned while stacking them. The end stopper 25 functions as a regulating member at one end of the storage tray 24 for aligning the ends of multiple stacked recording media P.

[0025] Furthermore, a retaining spring 251, which is made of a leaf spring, is provided inside the end stopper 25 to press down on the rear end of the recording medium P from above. Furthermore, a retaining plate 252 is positioned on the front side of the end stopper 25, which is pivotably supported and uses its own weight to hold down the recording medium P on the storage tray 24.

[0026] The staple unit 27 is positioned behind the end stopper 25 and is movable in the left-right direction. The staple unit 27 has an opening facing forward into which the ends of the stacked recording media P are inserted. Then, when the recording media P are stacked on the storage tray 24 with their rear ends aligned, the staple unit 27 moves to a predetermined position in the left-right direction. Furthermore, the staple unit 27 moves forward to insert the rear ends of the recording media P into the opening at a position that avoids each end stopper 25. Then, within the opening, the staple unit 27 can fasten the recording media P by piercing the staple needles N through the rear ends of the stacked recording media P.

[0027] [Post-processing equipment: Conveyor unit] Figures 6 and 7 are side views of the transport unit 30 as seen from the left. Figure 6 shows the transport unit 30 in the retracted position, and Figure 7 shows the transport unit 30 in the transport position where transport is performed. As shown in Figures 4 to 7, the transport unit 30 includes a rotating transport body 31, a support section 32, a paddle motor 35, a rotating shaft 37, a pivot shaft 38, an input shaft 39, and an adjustment section 40.

[0028] The support shaft 38 extends along the left-right direction over almost the entire left-right area within the housing 26 and is rotatably supported by the housing 26. The support shaft 38 is supported by passing through the support portion 32 in the middle of the left-right direction. The support portion 32 rotatably supports the rotating conveyor 31 via the rotating shaft 37. The support shaft 38 has the function of transmitting rotational power to the rotating conveyor 31 supported by the support portion 32. Therefore, the left end of the support shaft 38 is connected to the output shaft of the paddle motor 35, and rotational force is input to it. The paddle motor 35 is supported by a left bracket 261 erected inside the left end of the housing 26.

[0029] The rotating conveying bodies 31 are provided at one end and the other end of a rotating shaft 37 that extends along the left-right direction. Each rotating conveying body 31 has a paddle 311 whose tip contacts the recording medium P and moves it in a predetermined direction, and a paddle holder 312 that holds a plurality of paddles 311. Each paddle 311 is a rectangular flat plate in the shape of a strip, made of an elastic material such as rubber. Each paddle 311 extends tangentially from the outer circumference of a paddle holder 312, which has one end that is substantially cylindrical, and its tip contacts the recording medium P. As the paddle holder 312 rotates, the recording medium P can be stably fed out by the elastic force of the paddle 311.

[0030] Three paddles 311 are provided on the paddle holder 312 at 90° intervals in the circumferential direction. In other words, one of the regions obtained by uniformly dividing the outer circumference of the paddle holder 312 into four sections does not have paddles 311. The rotating transport body 31 switches between the upper retracted position and the lower transport position by oscillating around the pivot shaft 38 of the support section 32. For this reason, a region where paddles 311 are absent is provided to avoid collision between the paddles 311 and the recording medium P when switching between the retracted position and the transport position.

[0031] Figure 8 is an exploded perspective view of the support section 32 and the adjustment section 40. The support section 32 includes a holder 33 that supports the rotating shaft 37 and a movable body 34 that holds the input shaft 39.

[0032] The holder 33 is a frame with an open cross-section shape that is open upwards, having left and right side walls and a bottom surface. A support shaft 38 is inserted through the rear end of the holder 33 via a pair of left and right bearing members 331. The support shaft 38 is rotatable relative to the holder 33 by the left and right bearing members 331. Furthermore, a rotating shaft 37 is inserted through the front end of the holder 33 via a pair of left and right bearing members 332. The rotating shaft 37 is also rotatable relative to the holder 33 by the left and right bearing members 332.

[0033] Inside the holder 33 is a transmission mechanism 36 that transmits rotational force from the support shaft 38 to the rotating shaft 37. The transmission mechanism 36 has a driving sprocket 362 fixed to the support shaft 38 and a driven sprocket 363 fixed to the rotating shaft 37. Furthermore, the transmission mechanism 36 has an endless annular drive belt 361 stretched between the driving sprocket 362 and the driven sprocket 363. As mentioned above, the support shaft 38 is rotationally driven by the paddle motor 35. Then, rotational force is transmitted from the support shaft 38 to the rotating shaft 37 via the main sprocket 362, drive belt 361, and driven sprocket 363 of the transmission mechanism 36. As a result, the rotational drive of the left and right rotating conveying bodies 31 is performed with the paddle motor 35 as the drive source.

[0034] The movable body 34 is a frame with left and right side walls and a top surface, and has an open cross-section that is open downwards. The movable body 34 is connected to the holder 33 so as to close the open top of the holder 33. The movable body 34 is connected such that the left and right side walls of the movable body 34 are on the inside of the left and right side walls of the holder 33. The left and right side walls of the movable body 34 have a pair of legs 341 that extend diagonally downward and rearward from their rear ends. The tips of the pair of legs 341 are roughly C-shaped and individually embrace the outer circumference of the cylindrical portion of the pair of bearing members 331. As a result, the movable body 34 and the holder 33 can swing relative to each other around the pivot shaft 38.

[0035] On the front of the left and right side walls of the movable body 34, a pair of input shafts 39 are provided, protruding outward in the left and right directions, at a position that does not interfere with the left and right side walls of the holder 33. Both input shafts 39 are parallel in the left and right directions and are arranged on the same axis. The pair of input shafts 39 receive input from the pair of left and right input arms 51 of the moving mechanism 50, which causes the entire support section 32 to swing around the pivot shaft 38. In other words, the moving mechanism 50 receives input through the pair of input shafts 39 to switch the pair of rotating transport bodies 31 between the upper retracted position and the lower transport position.

[0036] Furthermore, the pair of input shafts 39 are not a single unit, but are provided on both the left and right sides of the drive belt 361. Therefore, the pair of input shafts 39 do not need to be positioned above the drive belt 361 to avoid interference with the drive belt 361. Consequently, the support portion 32 can be made smaller in the vertical direction.

[0037] Figures 9 to 11 are side views of the support section 32, showing the changes in each part due to adjustment of the adjustment section 40. Between the holder 33 of the support section 32 and the movable body 34, there is an adjustment section 40 for adjusting the distance of each rotating conveyor 31 relative to the upper surface of the storage tray 24. Hereinafter, the distance of each rotating conveyor 31 relative to the upper surface of the storage tray 24 will be referred to as the "height of the rotating conveyor 31". This adjustment unit 40 adjusts the height of each rotating conveyor 31 relative to the upper surface of the storage tray 24 by adjusting the angle θn shown in Figure 9. The angle θn represents the angle between the plane containing the centerlines of the support shaft 38 and the rotation shaft 37 and the plane containing the centerlines of the support shaft 38 and the pair of input shafts 39.

[0038] The adjustment section 40 includes an adjustment body 41, a connecting member 42, and a guide projection 43. The movable body 34 is related to adjusting the height of the rotating conveyor 31, so it may be included as part of the adjustment section 40. The adjustment body 41 can hold the holder 33 and the movable body 34 at any angle θn. The adjustment body 41 is a frame with left and right side walls and a top surface, and has an open cross-sectional shape that is open downwards. The adjustment body 41 is stored inside the movable body 34 in a state that allows it to move in the front-rear direction. The adjustment body 41 is connected such that its left and right side walls and top surface are close to the left and right side walls and top surface of the movable body 34.

[0039] A guide projection 43 is provided projecting upward from the upper front end of the top surface of the adjustment body 41. An insertion hole 412 is formed vertically through the upper rear end of the top surface of the adjustment body 41, into which a connecting member 42 is inserted. Elongated holes 343 and 342 are formed through the front and rear sides of the top surface of the movable body 34, respectively, oriented in the front-to-back direction. The width of the elongated hole 343 in the left-right direction is approximately equal to the outer diameter of the guide projection 43, and the guide projection 43 is inserted into the elongated hole 343 from below. An E-ring 431 is attached to the upper end of the guide projection 43, connecting the movable body 34 and the adjusting body 41.

[0040] A scale 344 is provided to the left of the elongated hole 343. This scale 344 is for reading the front-to-back position of the guide projection 43. The front-to-back position of the guide projection 43 is correlated with the height of the rotating conveyor 31 relative to the storage tray 24. Therefore, the height of the rotating conveyor 31 relative to the storage tray 24 can be adjusted while reading the front-to-back position of the guide projection 43 from the scale 344. Furthermore, the guide projection 43 and the adjustment body 41 can be moved steplessly, that is, continuously, relative to the movable body 34. Accordingly, the height of the rotating conveyor 31 can also be adjusted steplessly.

[0041] The width of the elongated hole 342 in the left-right direction is approximately the same as the outer diameter of the shaft portion of the connecting member 42, and the shaft portion of the connecting member 42 is inserted into the elongated hole 342 from above. The tip of the shaft portion of the connecting member 42 is slightly enlarged in diameter. When the shaft portion of the connecting member 42 is pushed through the elongated hole 342 into the insertion hole 412 of the adjusting body 41, the connecting member 42 also connects the movable body 34 and the adjusting body 41. The movable body 34 and the adjusting body 41 are connected so as to be able to move relative to each other in the front-rear direction by the elongated holes 343 and 342, the guide projection 43, and the connecting member 42.

[0042] Furthermore, when the movable body 34 and the adjusting body 41 are connected by the connecting member 42, the lower surface of the top of the movable body 34 and the upper surface of the top of the adjusting body 41 are pressed together to a suitable degree. As a result, relative movement in the front-to-back direction between the movable body 34 and the adjusting body 41 is not possible unless a certain amount of force is applied. The connecting member 42 may be configured as a fastening member such as a screw, and the insertion hole 412 as a screw hole, thereby enabling fastening between the movable body 34 and the adjustment body 41. In that case, loosening the connecting member 42 allows the movable body 34 and the adjustment body 41 to move back and forth, and tightening the connecting member 42 fixes the movable body 34 and the adjustment body 41 in place.

[0043] At the lower ends of the left and right side walls of the adjustment body 41, elongated holes 411 are formed at the same position, with the same dimensions and aligned in the same direction when viewed from the left and right. Connecting shafts 321, which are held in through holes 333 in the left and right side walls of the holder 33, are inserted through the left and right elongated holes 411. As a result, the holder 33 and the adjusting body 41 are connected by the connecting shaft 321. Furthermore, since the adjusting body 41 and the movable body 34 are connected, the holder 33 and the movable body 34 are connected via the adjusting body 41. Furthermore, the connecting shaft 321 is positioned in the holder 33 so as to pass inside the drive belt 361, thereby avoiding interference with the drive belt 361.

[0044] The left and right elongated holes 411 are formed along the rearward-upward diagonal. Therefore, when the adjusting body 41 is moved backward relative to the movable body 34, the elongated holes 411 push upward on the movable body 34 and the adjusting body 41 via the connecting shaft 321. Consequently, the angle θn increases. As shown in Figure 10, when the adjusting body 41 is moved to the rear end of the range of motion, the angle θn can be increased to the maximum angle θmax. Furthermore, when the adjusting body 41 is moved forward relative to the movable body 34, the elongated hole 411 pushes the movable body 34 and the adjusting body 41 downward via the connecting shaft 321. Consequently, the angle θn decreases. As shown in Figure 11, when the adjusting body 41 is moved to the front end of the range of motion, the angle θn can be reduced to the minimum angle θmin.

[0045] The elongated hole 411 does not need to be parallel to the plane containing the centerlines of the pivot shaft 38 and the rotation shaft 37 in a side view, and may be tilted diagonally downward and to the rear. In that case, moving the adjusting body 41 backward will decrease the angle θn, and moving the adjusting body 41 forward will increase the angle θn.

[0046] Figure 12 is a side view of the transport unit 30 showing the height of the rotating transport body 31 relative to the storage tray 24 when the angle θn is increased to the maximum angle θmax. In this case, the input shaft 39 is constrained by the input arm 51, and the rotating conveyor 31, located at the front end of the holder 33 which forms an angle θmax with the movable body 34, moves downward. Consequently, the rotating conveyor 31 is closest to the upper surface of the storage tray 24 at a distance hmin.

[0047] Figure 13 is a side view of the transport unit 30 showing the distance of the rotating transport body 31 to the storage tray 24 when the angle θn is reduced to the minimum angle θmin. In this case, the input shaft 39 is constrained by the input arm 51, and the rotating conveyor 31, located at the front end of the holder 33 which forms an angle θmin with the movable body 34, moves upward. Therefore, the rotating conveyor 31 reaches the distance hmax which is the furthest distance from the upper surface of the storage tray 24.

[0048] In this way, the height of each rotating conveyor 31 relative to the upper surface of the storage tray 24 can be adjusted by moving the adjusting body 41 of the adjustment unit 40 back and forth.

[0049] [Post-processing device: Mobile mechanism] As shown in Figures 4 to 7, the moving mechanism 50 includes a pair of left and right input arms 51, a pivot shaft 52, a follower 53, a cam 58, and the like. The pivot shaft 52 extends along the left-right direction over almost the entire left-right area within the housing 26 and is rotatably supported by the housing 26. The pivot shaft 52 holds a pair of input arms 51 at approximately the middle of its longitudinal direction and imparts a rotational movement to the pair of input arms 51. Furthermore, the aforementioned distribution members 23 are held on both the left and right sides of the pair of input arms 51 of the pivot shaft 52, and the distribution members 23 rotate in conjunction with the input arms 51.

[0050] A pair of input arms 51 extend rearward from the pivot shaft 52 and are located close to the left and right sides of the support portion 32. Each input arm 51 has an elongated hole 511 formed through it in the left-right direction. The left and right input shafts 39 of the support portion 32 are inserted into each elongated hole 511. As a result, the swinging of the input arm 51 around the pivot axis 52 allows the support portion 32 to swing around the pivot axis 38. In this case, since the input arm 51 has an elongated hole 511, it allows the input shaft 39 to move along the elongated hole 511. The longitudinal direction of each elongated hole 511 is preferably closer to the radial direction than to the direction perpendicular to the radial direction centered on the pivot axis 52.

[0051] The right end of the pivot shaft 52 holds an arm-shaped follower 53, which acts as a follower of the cam 58. The follower 53 extends forward, and its lower part abuts against the outer circumference of the cam 58. A coil spring 56 is connected to the tip of the follower 53 to maintain contact with the cam 58, and downward tension is applied.

[0052] The cam 58 is an outer circumference cam that rotates around an axis along the left-right direction. The cam 58 has a section with a minimum diameter and a section with a maximum diameter in the circumferential direction, with a section in between where the diameter gradually increases. Furthermore, the section of the cam 58 with a maximum diameter is an adjustment section 581 in which the outer diameter remains constant within a certain angular range in the circumferential direction. When the follower 53 contacts the section of the cam 58 with the smallest diameter, the tip of the follower 53 rises to its highest position, causing the rotating conveyor 31 to retract to the position shown in Figure 6. When the follower 53 contacts the adjustment section 581 of the cam 58, the tip of the follower 53 lowers to its lowest position, bringing the rotating conveyor 31 to the conveying position shown in Figure 7.

[0053] The adjustment section 581 is the section in which the cam 58 brings the rotating conveyor 31 closest to the storage tray 24. Therefore, the height adjustment operation of the rotating conveyor 31 by the adjustment unit 40 is performed with the adjustment section 581 of the cam 58 in contact with the follower 53. For this reason, as shown in Figure 7, the cam 58 is provided with a positioning hole 582, which serves as a mounting part for a jig that fixes the axial angle in the adjustment section 581. The cam 58 is supported by the right bracket 262, which is adjacent to it. The right bracket 262 has a jig insertion hole 262a formed therein, corresponding to the positioning hole 582 of the cam 58 that contacts the follower 53 in the adjustment section 581. The jig, which is not shown, is made of a round bar. By inserting the jig into the positioning hole 582 and the insertion hole 262a simultaneously while they are overlapping, the cam 58 can be fixed to the axial angle of the adjustment section 581.

[0054] The cam 58 is connected to a cam drive motor 54, which serves as the drive source, via a reduction gear (not shown). The cam drive motor 54 is a motor capable of controlling the amount of movement, such as the axial angle of the output shaft, for example, a stepping motor. The cam 58 has a disc with a notch formed in it. The cam 58 is fitted with a sensor 55 that detects the notch in the disc. The axial angle at which this sensor 55 detects the notch becomes the origin of the cam 58. The cam drive motor 54 is controlled so that the section with the minimum diameter or the adjustment section 581 contacts the follower 53, according to the amount of movement from the detected origin.

[0055] [Post-processing device: Conveying operation] Figures 14 to 19 are operation diagrams illustrating the sequence of operations of the post-processing device 20. The operation of the post-processing device 20 will be explained sequentially according to these diagrams.

[0056] Initially, the post-processing device 20 controls the cam drive motor 54 so that the rotating conveyor 31 is in a retracted position. When the image-formed recording medium P reaches the path member 21, the post-processing device 20 uses the transport unit 22 to transport the recording medium P further forward (Figure 14).

[0057] Then, the cam drive motor 54 starts to operate, causing the sorting member 23 to swing and sweep the rear end of the recording medium P towards the storage tray 24 (Figure 15). The cam drive motor 54 continues to drive until each rotating conveyor 31 reaches its conveying position.

[0058] Next, the transport motor 223 is driven, and the rotating transport body 31 is rotated via the support shaft 38 and the transmission mechanism 36 to transport the recording medium P backward (Figure 16). The recording medium P is transported by the retaining plate 252 along the upper surface of the storage tray 24 until its rear end reaches the back of the end stopper 25. Subsequently, the rotating conveyor 31 is returned to its retracted position by the drive of the cam drive motor 54.

[0059] The recording medium P has a predetermined target number of copies, and the recording medium P with images formed on it is repeatedly transported to the post-processing device 20. Each time the recording medium P arrives, the post-processing device 20 repeatedly performs the operations shown in Figures 14 to 16. In this case, the height of the rotating conveyor 31 may be adjusted for each sheet or for every specified number of sheets by utilizing the section in which the diameter of the cam 58 changes. That is, as the number of stacked sheets increases, the height of the rotating conveyor 31 may be gradually increased to maintain a constant contact pressure.

[0060] As a result, each recording medium P is stacked on the storage tray 24. In addition, each recording medium P is abutted against the end stopper 25, so that the rear ends of each recording medium are aligned when stacked.

[0061] When the target number of recording media P are stacked, the staple unit 27 moves forward (Figure 17). The staple unit 27 pierces the rear ends of the stacked recording media P with staple needles N at a position that avoids each end stopper 25, and bundles them together. Then, the transport belt mechanism 241 rises from between the two storage trays 24 and brings the belt into contact with the bottom surface of the lowest recording medium P (Figure 18). Furthermore, the conveyor belt mechanism 241 starts driving, transporting the bundled recording media P forward and discharging them onto the discharge tray 15 to complete the operation (Figure 19).

[0062] [Post-processing device: Adjustment operation] The adjustment operation of the height of the rotating conveyor 31 by the adjustment unit 40 of the post-processing device 20 will be explained with reference to Figures 7 to 13. This adjustment work can be performed at the shipping stage of the post-processing device 20 or before the start of post-processing. As shown in Figure 7, the jig is inserted simultaneously into the positioning hole 582 and the insertion hole 262a, with the cam 58 orienting at an axial angle such that the adjustment section 581 is on the upper side. This places each rotating conveyor 31 in the conveying position. In this state, if necessary, loosen the connecting member 42 and move the adjustment body 41 back and forth through the guide projection 43 while looking at the scale 344.

[0063] Since the paddles 311 of the rotating conveyor 31 are elastic, the contact pressure with respect to the uppermost recording medium P varies depending on the height of the rotating conveyor 31. If the contact pressure is high, the conveying force of the recording medium P by the rotating conveyor 31 increases, and if the contact pressure is low, the conveying force of the recording medium P by the rotating conveyor 31 decreases. Therefore, the post-processing device 20 adjusts the conveying force by changing the height of the rotating conveyor 31. Moving the adjustment body 41 backward increases the angle θn (Figure 10) and lowers the height of the rotating conveyor 31 (Figure 12). Moving the adjustment body 41 forward decreases the angle θn (Figure 11) and raises the height of the rotating conveyor 31 (Figure 13). By moving these adjustment members 41 back and forth, the height of the rotating conveyor 31 from the storage tray 24 can be changed, allowing for easy fine-tuning of the conveying force.

[0064] [Technical Effects of the First Embodiment] The post-processing device 20 is equipped with an adjustment unit 40 on the support unit 32 for adjusting the height of the rotary conveyor 31. This allows the height of the rotary conveyor 31 to be adjusted at a position close to the rotary conveyor 31 where there are fewer intervening parts. Therefore, the influence of intervening parts can be suppressed, the rotary conveyor 31 can be adjusted to the desired height, and the conveying force of the rotary conveyor 31 can be finely adjusted more appropriately. As a result, the post-processing device 20 can suppress unevenness or buckling of the edges of the recording medium P, and align the edges well.

[0065] Furthermore, the paddles 311 of the rotating conveyor 31 are made of elastic material. Therefore, an elastic force is generated on the recording medium P by the paddles 311 due to the height of the rotating conveyor 31. As a result, the conveying force can be easily adjusted by changing the height of the rotating conveyor 31, and fine adjustments to the conveying force can be made more precisely and appropriately.

[0066] Furthermore, in the rotating transporter 31, each paddle 311 is held in a paddle holder 312. This makes it easy to replace the paddles 311 with those in the paddle holder 312. Moreover, even if the paddles 311 are made of an elastic material, the paddle holder 312 can be made of a material capable of firmly holding the paddles 311. Thus, while retaining the advantages of elastic paddles 311, the recording medium P can be transported while being firmly held, resulting in efficient transport.

[0067] Furthermore, the support portion 32 of the rotating conveyor 31 is supported by a pivot shaft 38 that is different from the rotating shaft 37. Therefore, an adjustment body 41 for adjusting the height of the rotating conveyor 31 can be provided between the rotating shaft 37 and the pivot shaft 38, making the design of the adjustment body 41 easier. In addition, it becomes possible to increase the design flexibility of the adjustment body 41.

[0068] Furthermore, the adjustment unit 40 adjusts the height of the rotating conveyor 31 by changing the angle of the support unit 32 of the rotating conveyor 31 around the pivot shaft 38. Therefore, by swinging the support unit 32 around the pivot shaft 38, the height of the rotating conveyor 31 can be easily adjusted.

[0069] Furthermore, the rotating conveyor 31 receives oscillating motion around the pivot shaft 38 through an input shaft 39 that is different from both the rotating shaft 37 and the pivot shaft 38. As a result, it is possible to switch between the retracted position and the conveying position of the rotating conveyor 31 without affecting the height adjustment of the rotating conveyor 31 by the adjustment unit 40.

[0070] Furthermore, the adjustment unit 40 adjusts the height of the rotating conveyor 31 by changing the angle θn between the position of the rotation axis 37, which is centered on the support shaft 38, and the position of the input shaft 39. Therefore, it is easy to incorporate the configuration of the adjustment unit 40, which adjusts the height of the rotating conveyor 31, into the support unit 32. Furthermore, the height of the rotating conveyor 31 can be adjusted by changing the angle, with the radius being the distance from the support shaft 38 to the rotating shaft 37 or the input shaft 39. Therefore, the support section 32 can be made smaller, which contributes to the miniaturization of the post-processing device 20. When the recording medium processing device is a post-processing device 20 incorporated into an image forming apparatus 100 or the like, there is a very high demand for miniaturization. The configuration of the adjustment unit 40 above can effectively realize the demand for miniaturization of the post-processing device 20.

[0071] Furthermore, in the transport unit 30, a pair of input shafts 39 are positioned symmetrically on the support section 32, with the drive belt 361 in between. Therefore, it is possible to achieve an arrangement where the input shafts 39 and the drive belt 361 overlap when viewed from the side, while avoiding interference between the input shafts 39 and the drive belt 361. Therefore, it is not necessary to position the input shaft 39 above or below the drive belt 361, which enables miniaturization of the support unit 32 and, furthermore, the post-processing device 20.

[0072] Furthermore, the support unit 32 has a connecting shaft 321 that connects the holder 33 and the movable body 34 via an adjustment body 41, which is inserted inside the drive belt 361. Since the connecting shaft 321 does not move relative to the drive belt 361, it does not interfere even when placed inside the drive belt 361. And since there is no need to position the connecting shaft 321 above or below the drive belt 361, it becomes possible to miniaturize the support unit 32 and the post-processing device 20.

[0073] Furthermore, the movable body 34 of the transport unit 30 has a U-shaped cross-section with a pair of opposing walls, and the drive belt 361 is arranged to pass inside it. Therefore, when adjusting the height of the rotating conveyor 31, the movable body 34 can avoid interference with the drive belt 361. Moreover, since the drive belt 361 can be positioned inside the movable body 34, it becomes possible to miniaturize the vertical or horizontal support section 32 and the post-processing device 20.

[0074] Furthermore, the adjustment unit 40 can adjust the height of the rotating conveyor 31 steplessly. This makes it possible to make fine height adjustments without being restricted by stepwise adjustments.

[0075] Furthermore, the moving mechanism 50 has an adjustment section 581 in which the outer diameter remains constant, so that the cam 58 can perform the height adjustment work of the rotating conveyor 31 by the adjustment section 40. When adjusting the height of the rotating conveyor 31, even a slight rotation of the cam 58 can cause a change in the height of the conveyor 31, making adjustment difficult. By providing an adjustment section 581 on the cam 58, the height displacement of the rotating conveyor 31 due to the rotation of the cam 58 can be suppressed. Therefore, it becomes possible to easily fine-tune the height of the rotating conveyor 31 to the desired height.

[0076] Furthermore, the moving mechanism 50 is provided with a positioning hole 582 in the cam 58, which serves as a mounting portion for a jig that fixes the cam 58 in the adjustment section 581. This suppresses the rotation of the cam 58 when adjusting the height of the rotating conveyor 31, making it possible to finely adjust the rotating conveyor 31 to the desired height.

[0077] [Second Embodiment] A second embodiment of the present invention will be described below with reference to the drawings. The scope of the present invention is not limited to the embodiments disclosed below or the examples shown in the drawings. The following embodiment illustrates a transport unit 30A, which differs in some configurations from the transport unit 30 described above. In the following description, components identical to those of the image forming apparatus 100 described above are denoted by the same reference numerals, and redundant explanations are omitted. The differences between the transport unit 30A and the transport unit 30 will be described in detail.

[0078] Figure 20 is a perspective view of the transport unit 30A in the second embodiment, and Figure 21 is an enlarged perspective view. Figure 22 is a side view of the transport unit 30A from the left when the movable body 34A, which will be described later, is in its rearmost position relative to the holder 33A, which will be described later. Figure 23 is a side view of the transport unit 30A from the left when the movable body 34A is in its forwardst position relative to the holder 33A.

[0079] The transport unit 30A differs from the transport unit 30 in its support section 32A and adjustment section. The support section 32A includes a holder 33A that supports the rotating shaft 37 and a movable body 34A that holds the input shaft 39. The holder 33A is a frame with left and right side walls and a bottom surface, and has an open cross-sectional shape that is open upwards. A support shaft 38 is rotatably inserted through the rear end of the holder 33A, and a rotating shaft 37 is rotatably inserted through the front end. In holder 33A, rotational force is transmitted from the support shaft 38 to the rotating shaft 37 via the transmission mechanism 36, just as in holder 33.

[0080] The holder 33A differs in that the front portions of its left and right side walls are set higher than the side walls of the holder 33. However, the left and right side walls of the holder 33A are not higher than those of the movable body 34A. Therefore, the transport unit 30A is not larger than the transport unit 30 in the vertical direction.

[0081] The movable body 34A is a frame with left and right side walls and a top surface, and has an open cross-sectional shape that is open downwards. The movable body 34A is connected to the inside of the holder 33A so as to close the open top of the holder 33A. The left and right side walls of the movable body 34A do not have a pair of legs extending diagonally downward to the rear, and are not connected around the support shaft 38.

[0082] A pair of input shafts 39 are provided on the front of the left and right side walls of the movable body 34A, projecting outward in the left-right direction. Each input shaft 39 extends outward from the holder 33A through elongated holes 335A formed in the front of the left and right side walls of the holder 33A, which are oriented in the left-right direction.

[0083] The adjustment section has a pair of left and right connecting members 42A. Note that the right connecting member 42A is not shown in the illustration. Also, since the movable body 34A is related to adjusting the height of the rotating conveyor 31, it may be included as part of the adjustment section. Each connecting member 42A connects the holder 33A and the movable body 34A. Each connecting member 42A passes through elongated holes 334A that run in the left-right direction and are provided at the rear of the left and right side walls of the holder 33A, and is attached to the side wall of the movable body 34A.

[0084] When the holder 33A and the movable body 34A are connected by the connecting member 42A, the left and right side walls of the movable body 34A and the left and right side walls of the adjusting body 41 are pressed together appropriately. As a result, relative movement in the front-to-back direction between the holder 33A and the movable body 34A is not possible unless a certain amount of force is applied. The connecting member 42A may be configured as a fastening member such as a screw, and the insertion hole on the movable body 34A side may be configured as a screw hole, thereby enabling fastening between the holder 33A and the movable body 34A. In that case, loosening the connecting member 42A will allow the holder 33A and the movable body 34A to move back and forth. Conversely, tightening the connecting member 42A will fix the holder 33A and the movable body 34A in place.

[0085] The movable body 34A can move back and forth relative to the holder 33A by means of a connecting member 42A and an input shaft 39 that are passed through the elongated holes 334A and 335A of the holder 33A. The post-processing device can adjust the height of the rotating conveyor 31 by moving the movable body 34A back and forth relative to the holder 33A.

[0086] A scale 344A is provided on the side of the movable body 34A. This scale 344A is for reading the front-to-back position of the movable body 34A relative to the holder 33A. An edge portion 336A is provided on the side wall of the holder 33A, running in the vertical direction. The front-to-back position of the movable body 34A relative to the holder 33A can be read from the position of this edge portion 336A relative to the scale 344A. The front-to-back position of the movable body 34A is correlated with the height of the rotating conveyor 31. Therefore, the height of the rotating conveyor 31 can be adjusted while reading the front-to-back position of the movable body 34A relative to the holder 33A from the scale 344A. Furthermore, the movable body 34A can be moved steplessly, or continuously, relative to the holder 33A. Accordingly, the height of the rotating conveyor 31 can also be adjusted steplessly. The scale markings 344A and the edge portion 336A may be provided on the right side of the support portion 32A, or on both the left and right sides.

[0087] Figure 22 is a side view of the transport unit 30A showing the height of the rotating transport body 31 when it is moved to its rearmost position within the range of motion of the movable body 34A. In this case, the input arm 51 is in the position to move the rotating transport body 31 to the transport position. The elongated hole 511 at the tip of the input arm 51 is in a predetermined position. When the movable body 34A moves backward relative to the holder 33A, the input shaft 39 moves backward along the elongated hole 511. Consequently, the posture of the holder 33A in the transport position changes as its front end swings backward around the support shaft 38. As a result, the rotating transport body 31 moves downward to a distance hmin that brings it closest to the upper surface of the storage tray 24.

[0088] Figure 23 is a side view of the transport unit 30A showing the height of the rotating transport body 31 when it is moved to the furthest forward position within the range of motion of the movable body 34A. In this case as well, the input arm 51 is in a position to move the rotating transport body 31 to the transport position. The elongated hole 511 at the tip of the input arm 51 is in a predetermined position. When the movable body 34A moves forward relative to the holder 33A, the input shaft 39 moves forward along the elongated hole 511. Consequently, the posture of the holder 33A in the transport position is displaced such that its front end swings forward around the support shaft 38. As a result, the rotating transport body 31 moves upward to the distance hmax at which it is furthest from the upper surface of the storage tray 24.

[0089] In this way, the height of each rotating conveyor 31 can be adjusted downwards by moving the movable body 34A backward relative to the holder 33A. Conversely, the height of each rotating conveyor 31 can be adjusted upwards by moving the movable body 34A forward relative to the holder 33A.

[0090] In the example shown for the transport unit 30A, the movable body 34A moves back and forth relative to the holder 33A, but the configuration is not limited to this. As long as the movable body 34A can move relative to the holder 33A in a direction that changes the distance of the input shaft 39 relative to the support shaft 38, the height of the rotating transport body 31 can be adjusted.

[0091] [others] The embodiments of the present invention have been described above. However, the present invention is not limited to the embodiments described above. For example, in the embodiments, a component integrally formed from a single member may be replaced with a component divided into multiple members that are connected or fixed to each other. Also, a component formed by connecting multiple members may be replaced with a component integrally formed from a single member. Furthermore, details shown in the embodiments can be modified as appropriate without departing from the spirit of the invention.

[0092] In the first and second embodiments, the adjustment unit is exemplified as being able to adjust the height of the rotating conveyor 31 steplessly, but it may also be adjustable in steps. In the case of the transport unit 30 of the first embodiment, a latch mechanism or the like may be provided to cause the movable body 34 to swing around the pivot shaft 38 relative to the holder 33 in units of a specified angle. Furthermore, in the case of the transport unit 30A of the second embodiment, a latch mechanism may be provided to allow the movable body 34 to move back and forth relative to the holder 33 in units of a specified length.

[0093] Furthermore, the cam 58 of the moving mechanism 50 does not have to be an outer circumferential cam that rotates around an axis along the left-right direction. For example, the cam can be replaced with any type of cam that can impart displacement to the follower in accordance with the movement or change in the orientation of the cam.

[0094] Furthermore, although the rotating conveyor is configured to have paddles 311, it may also be configured with rollers or the like with an elastic outer surface.

[0095] Furthermore, although the above embodiments illustrate a post-processing device as the recording medium processing device, the invention is not limited thereto. The configuration of the recording medium processing device described above is applicable to any device that requires stacking multiple recording media with their edges aligned. [Explanation of Symbols]

[0096] 100 Image forming apparatus 15 Discharge Tray 20. Post-processing equipment (recording medium processing equipment) 21 Path members 22 Conveying section 23 Distribution Members 24 storage trays 241 Conveyor belt mechanism 25 End stopper (regulating member) 262 Right bracket 262a Insertion hole 27 staple units 30,30A transport unit 31 Rotating conveyor 311 paddles 312 Paddle Holder 32 Support part 321 Connecting shaft 33,33A holder 334A,335A long hole 34,34A Movable body 342,343 long hole 344,344A scale 36 Transmission Mechanism 361 Drive belt 37 Rotation axis 38 Spindle 39 Input axis 40 Adjustment section 41 Adjustment body 411 Long hole 42,42A Connecting member 43 Guide projection 50 Moving mechanism 58 Cam 581 Adjustment section 582 Positioning holes 100 Image forming apparatus P recording medium θn angle

Claims

1. A recording medium processing device that stacks multiple recording media with their ends aligned, A storage tray on which multiple recording media transported from the transport route are placed in a stacked state, A regulating member is provided at one end of the storage tray for aligning the ends of multiple recording media, A rotating transport body that transports the recording medium on the storage tray toward the regulating member, It has a support part that rotatably supports the aforementioned rotating conveyor, A recording medium processing apparatus comprising a support portion provided with an adjustment portion for adjusting the distance of the rotating transport body to the storage tray or the recording medium on the storage tray.

2. The recording medium processing apparatus according to claim 1, wherein the rotating conveying body has a rotating elastic member.

3. The recording medium processing apparatus according to claim 2, wherein the rotating conveyor comprises a paddle which is an elastic member and a paddle holder which holds the paddle.

4. The recording medium processing apparatus according to claim 1, wherein the support portion supports the rotating conveyor via a rotating shaft and is also supported by a support shaft different from the rotating shaft.

5. The recording medium processing apparatus according to claim 4, wherein the adjustment unit adjusts the distance from the rotating conveyor to the storage tray by changing the angle of the support part of the rotating conveyor about the pivot shaft.

6. The recording medium processing apparatus according to claim 5, wherein the rotating conveyor receives an input shaft through which a swinging motion around the pivot shaft is input to the rotating conveyor shaft, which is different from both the rotating shaft and the pivot shaft.

7. The recording medium processing apparatus according to claim 6, wherein the adjustment unit adjusts the distance from the rotating conveyor to the storage tray by changing the angle between the position of the rotation axis and the position of the input shaft with respect to the support shaft.

8. The rotating conveyor receives an input shaft that is different from both the rotating shaft and the support shaft, through which a swinging motion around the support shaft is input. The recording medium processing apparatus according to claim 4, wherein the adjustment unit moves the input shaft in a direction in which the distance from the support shaft varies, thereby adjusting the distance from the rotating transport body to the storage tray.

9. A drive belt is provided on the support portion for transmitting rotation to the rotating shaft. The recording medium processing apparatus according to claim 6, wherein the pair of input shafts are arranged in symmetrical positions on either side of the drive belt.

10. The support portion includes a holder that supports the rotating shaft, a movable body that holds the input shaft, a connecting shaft that connects the holder and the movable body, and a drive belt that transmits rotation to the rotating shaft. The recording medium processing apparatus according to claim 6, wherein the connecting shaft is inserted inside the drive belt.

11. The recording medium processing apparatus according to claim 10, wherein the movable body is a member with a U-shaped cross-section having a pair of side walls, and the drive belt is arranged to pass between the pair of side walls.

12. The recording medium processing apparatus according to claim 1, wherein the adjustment unit is capable of steplessly adjusting the distance from the rotating transport body to the storage tray.

13. The recording medium processing apparatus according to claim 1, wherein the adjustment unit is capable of adjusting the distance from the rotating conveyor to the storage tray in steps.

14. The rotating conveyor has a moving mechanism that moves it in a direction approaching the storage tray using a cam, The recording medium processing apparatus according to claim 1, wherein the cam has an adjustment section in which the displacement of the cam is kept constant with respect to its movement, in order to perform the adjustment work of adjusting the distance from the rotating conveyor to the storage tray by the adjustment unit.

15. The recording medium processing apparatus according to claim 14, wherein a mounting portion for a jig that fixes the cam in the adjustment section is provided on the cam.

Images