WO2024034269A1 - Dispositif d'éjection de feuille, dispositif de formation d'image et procédé d'utilisation de dispositif d'éjection de feuille - Google Patents

Dispositif d'éjection de feuille, dispositif de formation d'image et procédé d'utilisation de dispositif d'éjection de feuille Download PDF

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Publication number
WO2024034269A1
WO2024034269A1 PCT/JP2023/023055 JP2023023055W WO2024034269A1 WO 2024034269 A1 WO2024034269 A1 WO 2024034269A1 JP 2023023055 W JP2023023055 W JP 2023023055W WO 2024034269 A1 WO2024034269 A1 WO 2024034269A1
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WO
WIPO (PCT)
Prior art keywords
sheet
tray
discharge
mounting
paper
Prior art date
Application number
PCT/JP2023/023055
Other languages
English (en)
Japanese (ja)
Inventor
陽志 磯貝
司 杉山
健一 田中
良晃 石原
琢哉 有月
英雄 谷井
Original Assignee
京セラドキュメントソリューションズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京セラドキュメントソリューションズ株式会社 filed Critical 京セラドキュメントソリューションズ株式会社
Publication of WO2024034269A1 publication Critical patent/WO2024034269A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers

Definitions

  • the present invention relates to a sheet discharging device, an image forming device, and a method of using the sheet discharging device.
  • An image forming apparatus such as a printer includes a sheet ejecting device that ejects a sheet on which an image is formed.
  • the sheet discharge device includes a discharge port and a paper discharge tray (see, for example, Patent Document 1).
  • the sheet is discharged in a horizontal discharge direction.
  • the paper ejection tray is provided downstream of the ejection port in the ejection direction and is inclined with respect to the ejection direction, and supports the sheet ejected from the ejection port.
  • the sheet discharging device is sometimes shared by an electrophotographic image forming apparatus and an inkjet image forming apparatus.
  • the sheet ejected by the sheet ejecting device is a sheet on which an image has been formed using an electrophotographic method
  • in order to prevent the sheets ejected to the paper ejecting tray from being uneven It is desirable to increase the inclination angle of the paper ejection tray with respect to the ejection direction.
  • the ejector It is desirable to reduce the inclination angle of the paper tray with respect to the ejection direction.
  • the sheet discharging device is provided with an angle adjustment mechanism that can vary the inclination angle of the sheet discharging tray with respect to the discharging direction.
  • An object of the present invention is to provide a sheet discharging device, an image forming apparatus, and a method of using the sheet discharging device that can switch the inclination angle of a paper discharging tray with a simple configuration.
  • a sheet discharge device includes a discharge port, a paper discharge tray, and a mounting section. At the discharge port, the sheet is discharged in a horizontal discharge direction.
  • the paper ejection tray includes a sheet support portion that supports the sheet ejected from the ejection port on a downstream side of the ejection port in the ejection direction, and an end portion of the sheet support portion on the upstream side in the ejection direction. It has a protrusion that protrudes outward in the width direction from a side portion in the width direction perpendicular to the discharge direction.
  • the paper ejection tray is attached to and detached from the attachment section.
  • the mounting section includes a wall section, a plurality of holes, and a tray support section.
  • the wall portion faces the side portion of the seat support portion.
  • the plurality of holes are arranged in the wall along the discharge direction, and each hole is formed so as to be inserted through the protrusion.
  • the tray support section moves the paper ejection tray, in which the protrusion is inserted into one of the plurality of holes, from the lower side of the paper ejection tray at an inclination angle with respect to the ejection direction corresponding to the plurality of holes.
  • the mounting position is supported in a position corresponding to the hole through which the protrusion is inserted.
  • An image forming apparatus includes an image forming section and the sheet discharging device.
  • the image forming section forms an image on the sheet.
  • the sheet discharge device discharges the sheet on which an image has been formed by the image forming section.
  • a method of using a sheet discharging device includes a plurality of the discharge ports arranged in a vertical direction, a plurality of the paper discharge trays corresponding to the plurality of discharge ports, and a plurality of the discharge ports. and a plurality of the mounting sections corresponding to the sheet discharging device, and includes a mounting step.
  • the paper ejection tray is mounted on each of the mounting portions such that the higher the position of the paper ejection tray, the greater the inclination angle of the paper ejection tray with respect to the ejection direction.
  • FIG. 1 is a diagram showing the configuration of an image forming apparatus according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing the configuration of a post-processing device of an image forming apparatus according to an embodiment of the present invention.
  • FIG. 3 is a diagram showing the configuration of a paper discharge tray of an image forming apparatus according to an embodiment of the present invention.
  • FIG. 4 is a diagram showing the configuration of the mounting section of the image forming apparatus according to the embodiment of the present invention.
  • FIG. 5 is a diagram showing a modification of the mounting section of the image forming apparatus according to the embodiment of the present invention.
  • FIG. 1 is a block diagram showing the system configuration of an image forming apparatus 100.
  • the image forming apparatus 100 is a printer that has a print function that forms an image on a sheet based on image data. Note that the present invention is applicable to image forming apparatuses such as fax machines, copy machines, and multifunction devices.
  • the image forming apparatus 100 includes an image forming section 1, a sheet transport section 2, a post-processing device 3, an operation display section 4, a storage section 5, and a control section 6.
  • the image forming unit 1 realizes the printing function.
  • the image forming section 1 forms an image using an inkjet method.
  • the image forming section 1 includes a recording head that ejects ink toward a sheet.
  • the image forming section 1 forms an image on a sheet conveyed by the sheet conveying section 2.
  • the image forming section 1 may form an image using an image forming method different from an inkjet method such as an electrophotographic method.
  • the sheet transport unit 2 transports the sheets stored in the paper feed cassette to the post-processing device 3 via the image forming position by the image forming unit 1.
  • the sheet conveyance unit 2 includes the paper feed cassette and a plurality of conveyance rollers.
  • the post-processing device 3 realizes a sorting function for sorting the sheets conveyed by the sheet conveyance section 2.
  • the post-processing device 3 discharges the sheet on which the image has been formed by the image forming section 1 .
  • the operation display unit 4 is a user interface of the image forming apparatus 100.
  • the operation display section 4 includes an operation section and a display section.
  • the operation section inputs various information to the control section 6 according to user's operations.
  • the operation unit is an operation key or a touch panel.
  • the display section displays various information according to control instructions from the control section 6.
  • the display section is a liquid crystal display.
  • the storage unit 5 is a nonvolatile storage device.
  • the storage unit 5 is a nonvolatile memory such as a flash memory.
  • the control unit 6 centrally controls the image forming apparatus 100.
  • the control unit 6 includes a CPU 11, a ROM 12, and a RAM 13.
  • the CPU 11 is a processor that executes various calculation processes.
  • the ROM 12 is a non-volatile storage device in which information such as control programs for causing the CPU 11 to execute various processes is stored in advance.
  • the RAM 13 is a volatile or non-volatile storage device used as a temporary storage memory (work area) for various processes executed by the CPU 11.
  • various control programs stored in advance in the ROM 12 are executed by the CPU 11. Thereby, the control unit 6 controls the image forming apparatus 100 in an integrated manner.
  • FIG. 2 is a sectional view showing the configuration of the post-processing device 3.
  • FIG. 3 is a plan view showing the configuration of the paper discharge tray 31.
  • FIG. 4 is a side view showing the structure of the right inner wall 29.
  • the common conveyance path 22 and the individual conveyance path 23 are each shown by a two-dot chain line.
  • the vertical direction is defined as the vertical direction D1 when the post-processing device 3 is installed in a usable state (the state shown in FIG. 2).
  • the front-rear direction D2 is defined with the left side surface of the post-processing device 3 shown in FIG. 2 as the front (front surface).
  • a left-right direction D3 is defined with the front of the post-processing device 3 in the installed state as a reference.
  • the post-processing device 3 includes a housing 21, a common conveyance path 22, a plurality of individual conveyance paths 23 (23A to 23D), a plurality of discharge ports 24 (24A to 24D), and a plurality of mounting parts. 25 (25A to 25D), and a plurality of paper discharge trays 31 (31A to 31D).
  • the post-processing device 3 is an example of a sheet discharging device of the present invention.
  • the post-processing device 3 includes four discharge ports 24. Further, as shown in FIG. 2, the individual conveyance path 23, the mounting section 25, and the paper ejection tray 31 are provided corresponding to the ejection port 24. That is, the post-processing device 3 includes the same number of individual conveyance paths 23 as the number of discharge ports 24, mounting portions 25, and paper discharge trays 31. Note that the post-processing device 3 only needs to include an arbitrary number of discharge ports 24 of two or more.
  • the housing 21 is formed into a substantially rectangular parallelepiped shape. Inside the housing 21, a pair of inner walls 29 (see FIG. 2) are provided. Each of the inner walls 29 is a wall having a thickness in the left-right direction D3. The pair of inner walls 29 are provided facing each other in the left-right direction D3. Each of the inner walls 29 extends upward from the bottom of the housing 21 to above the discharge port 24A located at the top of the plurality of discharge ports 24. A plurality of paper discharge trays 31 are provided between the pair of inner walls 29 .
  • the plurality of discharge ports 24 are arranged in line along the vertical direction, and sheets are discharged from each of them in the discharge direction D4 (see FIG. 2) along the horizontal direction. As shown in FIG. 2, a plurality of discharge ports 24 are formed on the front surface of the housing 21. Each of the discharge ports 24 is elongated in the left-right direction D3 and opens toward the front side (discharge direction D4).
  • the common conveyance path 22 is a sheet movement path provided inside the casing 21.
  • the common conveyance path 22 extends upward from the bottom of the housing 21 . In the common conveyance path 22, the sheet conveyed to the housing 21 by the sheet conveyance section 2 is conveyed upward.
  • Each of the plurality of individual conveyance paths 23 is a sheet movement path provided inside the casing 21.
  • the plurality of individual conveyance paths 23 are provided corresponding to the plurality of discharge ports 24.
  • the individual conveyance path 23A extends from the common conveyance path 22 to the discharge port 24A.
  • the individual conveyance path 23B extends from the common conveyance path 22 to the discharge port 24B.
  • the individual conveyance path 23C extends from the common conveyance path 22 to the discharge port 24C.
  • the individual conveyance path 23D extends from the common conveyance path 22 to the discharge port 24D.
  • the plurality of paper ejection trays 31 are provided corresponding to the plurality of ejection ports 24.
  • Each of the paper ejection trays 31 is provided downstream of the ejection port 24 in the ejection direction D4 so as to be inclined with respect to the ejection direction D4, and supports the sheet ejected from the ejection port 24.
  • the plurality of mounting parts 25 are provided corresponding to the plurality of discharge ports 24, and the paper discharge tray 31 is attached to and detached from each of them.
  • Each mounting section 25 detachably supports a paper discharge tray 31.
  • the mounting portion 25A is provided between the outlet 24A and the outlet 24B.
  • a paper discharge tray 31A is attached to and detached from the attachment portion 25A.
  • the mounting portion 25B is provided between the discharge port 24B and the discharge port 24C.
  • a paper discharge tray 31B is attached to and detached from the attachment portion 25B.
  • the mounting portion 25C is provided between the outlet 24C and the outlet 24D.
  • a paper discharge tray 31C is attached to and detached from the attachment portion 25C.
  • the mounting portion 25D is provided below the discharge port 24D.
  • a paper discharge tray 31D is attached to and detached from the mounting portion 25D.
  • the post-processing device 3 may be shared by an electrophotographic image forming apparatus and an inkjet image forming apparatus.
  • the sheet ejected by the post-processing device 3 is a sheet on which an image has been formed using an electrophotographic method, the sheets ejected to the paper ejection tray 31 are prevented from being uneven in the ejection direction D4. Therefore, it is desirable to increase the inclination angle of the paper ejection tray 31 with respect to the ejection direction D4 (a plane parallel to the ejection direction D4).
  • the sheet ejected by the post-processing device 3 is a sheet on which an image has been formed using an inkjet method
  • the post-processing device 3 with an angle adjustment mechanism that can vary the inclination angle of the paper ejection tray 31 with respect to the ejection direction D4.
  • each paper discharge tray 31 includes a sheet support section 32 and a pair of protrusions 33.
  • the sheet support section 32 supports the sheet discharged from the discharge port 24 on the downstream side of the discharge port 24 in the discharge direction D4.
  • the seat support section 32 includes a bottom plate section 32A, a pair of side wall sections 32B, and a rear wall section 32C.
  • the bottom plate portion 32A has a width in the left-right direction D3 and is formed in a flat plate shape that is elongated in a direction orthogonal to the left-right direction D3.
  • the bottom plate section 32A is inclined upward along the discharge direction D4.
  • the sheets discharged from the discharge port 24 are stacked on the upper surface of the bottom plate portion 32A.
  • each of the side wall portions 32B is erected along the end portion of the bottom plate portion 32A in the left-right direction D3.
  • the pair of side wall portions 32B restrict movement of the sheets stacked on the bottom plate portion 32A in the left-right direction D3.
  • each of the side wall portions 32B is formed such that the protrusion height from the bottom plate portion 32A decreases continuously along the discharge direction D4.
  • the rear wall portion 32C is erected along the upstream end of the bottom plate portion 32A in the discharge direction D4.
  • the rear wall portion 32C prevents the sheets stacked on the bottom plate portion 32A from moving upstream in the discharge direction D4.
  • the rear wall portion 32C is formed so that the protrusion height from the bottom plate portion 32A is the same as the upstream end of the pair of side wall portions 32B in the discharge direction D4.
  • the pair of protruding parts 33 are the upstream end of the sheet support part 32 in the discharging direction D4, and protrude outward in the width direction from both sides in the width direction (horizontal direction D3) perpendicular to the discharging direction D4. do.
  • the pair of protrusions 33 are provided at the upstream ends of the pair of side walls 32B in the discharge direction D4.
  • each of the protrusions 33 is formed in a cylindrical shape that protrudes from the side wall 32B.
  • each mounting section 25 includes a wall section 61, a plurality of holes 62, and a tray support section 63.
  • the wall portion 61 faces the side portions of the seat support portion 32 in the width direction (left-right direction D3).
  • Each of the mounting portions 25 includes a pair of wall portions 61 facing both sides of the seat support portion 32 in the width direction (horizontal direction D3).
  • the pair of wall portions 61 are portions of the pair of inner walls 29 that sandwich the seat support portion 32 .
  • the plurality of holes 62 are arranged in the wall 61 along the discharge direction D4, and each hole is formed so that the protrusion 33 can be inserted therethrough.
  • the plurality of holes 62 are formed in each of the pair of wall parts 61.
  • Each of the holes 62 may be a through hole that penetrates the wall 61, or may be a hole that does not penetrate the wall 61.
  • the plurality of holes 62 include a first hole 62A and a second hole 62B located downstream of the first hole 62A in the discharge direction D4.
  • the paper discharge tray 31 is formed of an elastic member such as synthetic resin.
  • the pair of protrusions 33 are accommodated inside the pair of walls 61 by the pair of side walls 32B being elastically deformed inward in the left-right direction D3, and the pair of protrusions 33 are accommodated in the pair of first holes 62A or the pair of first holes 62A. is inserted into the second hole 62B.
  • the tray support section 63 supports the paper discharge tray 31 in which the protruding part 33 is inserted into any one of the plurality of holes 62 from the lower side of the paper discharge tray 31 in the discharge direction D4 of each of the paper discharge trays 31 corresponding to the plurality of holes 62.
  • the mounting posture is supported in the mounting posture corresponding to the hole 62 through which the protrusion 33 is inserted.
  • the tray support section 63 supports the paper discharge tray 31, in which the pair of protrusions 33 are inserted into the pair of first holes 62A, in a first mounting posture corresponding to the first holes 62A. Further, the tray support section 63 supports the paper discharge tray 31, in which the pair of protrusions 33 are inserted into the pair of second holes 62B, in a second mounting posture corresponding to the second holes 62B.
  • the second mounting posture is a mounting posture in which the inclination angle of the paper discharge tray 31 with respect to the discharge direction D4 is smaller than that of the first mounting posture.
  • FIG. 4 shows the paper discharge tray 31C mounted on the mounting section 25C in the first mounting posture. Further, FIG. 4 shows the paper discharge tray 31D mounted on the mounting section 25D in the second mounting posture.
  • the tray support portion 63 has a first surface 64A facing the discharge direction D4 on the downstream side of the second hole portion 62B in the discharge direction D4, and a first surface 64A facing the discharge direction D4 further than the first surface 64A. It has a corner portion 64 formed by a second surface 64B facing upward on the upstream side of the.
  • the tray support portion 63 includes a first flat portion having a first surface 64A and having a thickness in the ejection direction D4, and a second flat portion having a second surface 64B and having a thickness in the vertical direction D1. It is a member that is elongated in the left-right direction D3 and has a corner portion 64. Both end portions of the tray support portion 63 in the left-right direction D3 are supported by a pair of wall portions 61.
  • the paper discharge tray 31 has a step portion 34 that comes into contact with the corner portion 64 when the protrusion portion 33 is inserted into the second hole portion 62B.
  • the stepped portion 34 is formed at the bottom of the sheet support portion 32 on the upstream side in the discharge direction D4.
  • the stepped portion 34 has a first contact surface and a second contact surface.
  • the first contact surface is a plane that contacts the first surface 64A when the protrusion 33 is inserted into the second hole 62B.
  • the first contact surface forms a corner with the bottom surface 32D (see FIG. 4) of the seat support portion 32.
  • the second contact surface is a plane that contacts the second surface 64B when the protrusion 33 is inserted into the second hole 62B.
  • the second contact surface forms a corner with the first contact surface.
  • the step portion 34 is elongated in the left-right direction D3.
  • the corner portion 64 of the tray support portion 63 comes into contact with the stepped portion 34 of the paper discharge tray 31 (see paper discharge tray 31D shown in FIG. 4) in which the protrusion 33 is inserted into the second hole 62B, and the protrusion Rotation of the paper discharge tray 31 about the center 33 is locked. As a result, the paper discharge tray 31 is supported in the first mounting position.
  • the second surface 64B of the tray support section 63 makes the first contact with the bottom surface 32D of the paper discharge tray 31 (see paper discharge tray 31C shown in FIG. 4) in which the protrusion 33 is inserted into the first hole 62A.
  • the sheet discharge tray 31 is stopped from rotating around the protrusion 33 by contacting the corner formed by the surface.
  • the paper discharge tray 31 is supported in the second mounting position.
  • the corner formed by the bottom surface 32D and the first contact surface is configured so that it can come into surface contact with the second surface 64B when the paper ejection tray 31 is supported in the second mounting posture. Preferably chamfered.
  • the tray support portion 63 includes a protrusion 65 protruding from the second surface 64B.
  • the raised portion 65 is formed below the first hole 62A along the left-right direction D3.
  • the protrusion 65 contacts the back surface 32E (see FIG. 4) of the paper discharge tray 31 (see paper discharge tray 31C shown in FIG. 4) in which the protrusion 33 is inserted into the first hole 62A, and the protrusion 33 is inserted into the first hole 62A.
  • the rotation of the paper discharge tray 31 about the center is stopped. As a result, the paper discharge tray 31 is supported at two points, so that the posture of the paper discharge tray 31 is stabilized.
  • the paper ejection tray 31 is attached to each of the mounting sections 25 such that the higher the position of the paper ejection tray 31, the greater the inclination angle of the paper ejection tray 31 with respect to the ejection direction D4. .
  • This avoids narrowing of the access space for sheets discharged to the lower paper discharge tray 31, which is formed between two paper discharge trays 31 that are continuous in the vertical direction D1. Therefore, it is possible to avoid making it difficult for the user to access the sheets discharged to the paper discharge tray 31.
  • the user of the image forming apparatus 100 attaches the paper ejection tray 31 to each mounting section 25 so that the higher the position of the paper ejection tray 31 is, the greater the inclination angle of the paper ejection tray 31 with respect to the ejection direction D4.
  • the step of mounting is an example of the mounting step included in the method of using the sheet discharging device of the present invention.
  • the image forming apparatus 100 includes a plurality of holes 62 that are arranged in the wall portion 61 along the discharge direction D4, and each of the holes 62 is formed so that the protrusion portion 33 can be inserted therethrough. Further, the image forming apparatus 100 ejects the paper ejection trays 31 each having the protrusion 33 inserted into one of the plurality of holes 62 from the lower side of the paper ejection tray 31 to each other corresponding to the plurality of holes 62.
  • a tray support portion 63 is provided to support the tray in the mounting posture corresponding to the hole 62 through which the protrusion 33 is inserted among the plurality of mounting postures having different inclination angles with respect to the direction D4. As a result, it is possible to change the inclination angle of the paper discharge tray 31 with a simpler configuration compared to the apparatus provided with the angle adjustment mechanism.
  • the image forming apparatus 100 also includes a first surface 64A facing the discharge direction D4 on the downstream side of the second hole 62B in the discharge direction D4, and a first surface 64A facing upward in the discharge direction D4 on the upstream side of the first surface 64A.
  • the tray support portion 63 has a corner portion 64 formed by two surfaces 64B.
  • the image forming apparatus 100 also includes a paper discharge tray 31 having a stepped portion 34 that contacts the corner portion 64 when the protruding portion 33 is inserted into the second hole portion 62B. Thereby, the shape of the tray support part 63 can be simplified compared to a configuration in which the tray support part 63 has a plurality of tray support shapes 66 (see FIG. 5) corresponding to the plurality of mounting positions.
  • the tray support section 63 may include a plurality of tray support shapes 66 corresponding to the plurality of mounting positions.
  • Each of the tray support shapes 66 may have any shape as long as it can support the upstream end of the paper ejection tray 31 in the discharge direction D4 in the mounting attitude corresponding to the tray support shape 66.
  • the number of holes 62 may be three or more.
  • the present invention may be applied to an image forming apparatus 100 that includes a sheet ejection device including one ejection port 24 and a paper ejection tray 31 corresponding to the ejection port 24 instead of the post-processing device 3. .
  • the sheet discharged by the sheet discharge device of the present invention is not limited to a sheet on which an image is formed, but may be a sheet on which an image has been read by a scanner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)

Abstract

L'invention concerne un dispositif de formation d'image (100) qui comprend : un plateau de feuille éjectée (31) comprenant une partie de support de feuille (32) qui supporte une feuille, et une partie en saille (33) qui est une partie d'extrémité en amont de la partie de support de feuille (32) dans une direction d'éjection D4 et qui fait saillie à partir d'une partie latérale dans le sens de la largeur orthogonale à la direction d'éjection D4 vers l'extérieur dans le sens de la largeur; et une partie de montage (25) où le plateau de feuille éjectée (31) est fixé et détaché. La partie de montage (25) comprend une pluralité de parties de trou (62) qui sont ménagées côte à côte dans la direction d'éjection D4 et qui sont chacune formées de telle sorte que la partie en saillie (33) puisse y être insérée, et une partie de support de plateau (63) qui supporte le plateau de feuille éjectée (31) avec la partie en saillie (33) insérée dans l'une quelconque de la pluralité de parties de trou (62) dans une posture de montage selon un angle d'inclinaison correspondant à la partie de trou (62).
PCT/JP2023/023055 2022-08-10 2023-06-22 Dispositif d'éjection de feuille, dispositif de formation d'image et procédé d'utilisation de dispositif d'éjection de feuille WO2024034269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022127848 2022-08-10
JP2022-127848 2022-08-10

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WO2024034269A1 true WO2024034269A1 (fr) 2024-02-15

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PCT/JP2023/023055 WO2024034269A1 (fr) 2022-08-10 2023-06-22 Dispositif d'éjection de feuille, dispositif de formation d'image et procédé d'utilisation de dispositif d'éjection de feuille

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0486658U (fr) * 1990-11-30 1992-07-28
JP2016098108A (ja) * 2014-11-26 2016-05-30 京セラドキュメントソリューションズ株式会社 用紙排出トレイ及び画像形成装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0486658U (fr) * 1990-11-30 1992-07-28
JP2016098108A (ja) * 2014-11-26 2016-05-30 京セラドキュメントソリューションズ株式会社 用紙排出トレイ及び画像形成装置

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