WO2015141277A1 - Dispositif de transport de feuilles, dispositif de lecture d'image et dispositif de formation d'image - Google Patents

Dispositif de transport de feuilles, dispositif de lecture d'image et dispositif de formation d'image Download PDF

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Publication number
WO2015141277A1
WO2015141277A1 PCT/JP2015/051837 JP2015051837W WO2015141277A1 WO 2015141277 A1 WO2015141277 A1 WO 2015141277A1 JP 2015051837 W JP2015051837 W JP 2015051837W WO 2015141277 A1 WO2015141277 A1 WO 2015141277A1
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WO
WIPO (PCT)
Prior art keywords
stopper
unit
sheet conveying
image forming
sheet
Prior art date
Application number
PCT/JP2015/051837
Other languages
English (en)
Japanese (ja)
Inventor
健史 吉田
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 WO2015141277A1 publication Critical patent/WO2015141277A1/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
    • B65H31/20—Pile receivers adjustable for different article sizes
    • 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
    • B65H31/02—Pile receivers with stationary end support against which pile accumulates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/112—Rear, i.e. portion opposite to the feeding / delivering side
    • B65H2405/1122—Rear, i.e. portion opposite to the feeding / delivering side movable linearly, details therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/30—Other features of supports for sheets
    • B65H2405/33—Compartmented support
    • B65H2405/332—Superposed compartments
    • B65H2405/3321—Feed tray superposed to discharge tray
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/06—Office-type machines, e.g. photocopiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/39—Scanning

Definitions

  • the present invention relates to a sheet conveying apparatus, an image reading apparatus, and an image forming apparatus.
  • the sheet conveying apparatus disclosed in Patent Document 1 includes a conveying unit that conveys a sheet and a stacking unit that stacks sheets discharged from the conveying unit.
  • the stacking unit includes a tray that supports sheets discharged from the conveyance unit, and a plurality of mountain-shaped guide plates that stop the sheets discharged from the conveyance unit.
  • Patent Document 1 has the following problems.
  • the sheet conveying apparatus disclosed in Patent Document 1 when the sheet conveying speed is high or the sheet rigidity is high, the sheet is not formed even if the leading end in the sheet discharging direction gets over the mountain-shaped guide plate. It may not stop at a predetermined position. As a result, the sheet may be dropped from the tray or the stacked sheets may be uneven.
  • the present invention was devised in view of the above problems, and its object is to support a plurality of types of sheets having different sizes, and to accurately stop a sheet at a predetermined stop position.
  • An object of the present invention is to provide a reading device and an image forming apparatus.
  • a first aspect according to the present invention includes a conveyance unit that conveys a sheet and a stacking unit that stacks sheets discharged from the conveyance unit.
  • the stacking unit includes a support member that supports the sheet, and a stopper that is slidably attached to the support member and protrudes above the support member.
  • the stopper slides between a storage position and an extended position along an arcuate sliding locus, and the amount of protrusion of the stopper from the support member increases as it moves toward the extended position. The leading end of the sheet in the discharge direction hits the stopper and the sheet stops.
  • a second aspect according to the present invention is an image reading apparatus, and includes a sheet conveying apparatus according to the first aspect and a reading unit.
  • the reading unit reads an image formed on a read document.
  • the conveyance unit conveys the read original.
  • an image forming apparatus including the sheet conveying device according to the first aspect and an image forming unit that forms an image on a recording medium.
  • the present invention it is possible to deal with a plurality of types of sheets having different sizes, and the sheets can be accurately stopped at a predetermined stop position.
  • FIG. 1 is a perspective view of an image forming apparatus according to an embodiment of the present invention.
  • 1 is a perspective view of a sheet conveying apparatus according to an embodiment of the present invention. It is sectional drawing of the sheet conveying apparatus shown by FIG.
  • FIG. 3 is a perspective view of a stacking unit of the sheet conveying apparatus illustrated in FIG. 2.
  • FIG. 3 is a perspective view of a stacking unit of the sheet conveying apparatus illustrated in FIG. 2.
  • FIG. 4B is a side view of the stacking unit shown in FIG. 4A.
  • FIG. 4B is a side view of the stacking unit shown in FIG. 4B.
  • FIG. 5 is a side view illustrating a state in which an original is stacked on the stacking unit illustrated in FIGS. 4A and 4B.
  • FIG. 5 is a side view illustrating a state in which an original is stacked on the stacking unit illustrated in FIGS. 4A and 4B.
  • FIG. 10 is a side view illustrating a state in which documents are stacked on a stacking unit according to a comparative example.
  • FIG. 10 is a side view illustrating a state in which documents are stacked on a stacking unit according to a comparative example.
  • FIG. 4B is a side view of the stopper shown in FIGS. 4A and 4B and a holder that supports the stopper. It is a bottom view of the stopper and holder shown in FIG.
  • FIG. 10 is a sectional view taken along line XX in FIG. 9.
  • FIG. 10 is a sectional view taken along line XX in FIG. 9. FIG.
  • FIG. 4B is a perspective view of the stopper shown in FIGS. 4A and 4B.
  • FIG. 4B is a perspective view of the stopper shown in FIGS. 4A and 4B.
  • It is a perspective view of the holder shown by FIG.
  • It is a perspective view of the holder shown by FIG.
  • It is the XIII-XIII sectional view taken on the line of FIG.
  • It is the XIII-XIII sectional view taken on the line of FIG.
  • It is a perspective view which shows the state in which the stopper was accommodated.
  • It is a perspective view which shows the state in which the stopper was accommodated.
  • It is a perspective view which shows the state by which the stopper was pulled out.
  • It is a perspective view which shows the state by which the stopper was pulled out.
  • 1 is a cross-sectional view of an image forming apparatus according to an embodiment of the present invention.
  • FIG. 1 is a perspective view of an image forming apparatus 1 according to an embodiment of the present invention.
  • the image forming apparatus 1 is a copier, a fax machine, a scanner, a printer, a multifunction machine, or the like, and includes a sheet conveying device 10, a main body unit 2, an operation unit 3, a sheet discharge unit 4, a post-processing device 5, and the like.
  • the sheet bundle receiving unit 6 is provided.
  • the main body 2 includes a lower main body 2a and an upper main body 2b.
  • the lower main body 2a houses an image forming unit, a paper feeding unit, and the like.
  • the image forming unit forms a toner image on a recording medium (for example, copy paper) by an electrophotographic method.
  • the paper feeding unit supplies a recording medium to the image forming unit.
  • the upper body 2b houses a fixing unit, a transport mechanism, and the like.
  • the fixing unit fixes the toner image formed on the recording medium onto the recording medium.
  • the transport mechanism discharges the recording medium on which the image is formed to the sheet discharge unit 4.
  • the operation unit 3 includes a display 3a constituted by a liquid crystal panel or the like, an operation button group 3b for inputting various information, and the like.
  • the sheet discharge unit 4 stacks the discharged image-recorded recording medium.
  • the post-processing device 5 performs post-processing on the recording medium on which the image has been formed.
  • the post-processing for example, a staple process for bundling a plurality of recording media with staples, a punching process for punching a recording medium, or the like can be given.
  • the sheet bundle receiving unit 6 stacks a plurality of recording media bundled by stapling.
  • FIG. 2 is a perspective view of the sheet conveying apparatus 10
  • FIG. 3 is a cross-sectional view of the sheet conveying apparatus 10.
  • the sheet conveying device 10 is used to convey a read original (hereinafter referred to as “original”) as a sheet.
  • the sheet conveying apparatus 10 includes a placing unit 20, a conveying unit 30, and a stacking unit 40.
  • a document is placed on the placement unit 20.
  • the conveyance unit 30 conveys the document placed on the placement unit 20 along the conveyance path P.
  • the transport unit 30 includes a transport roller 300 and a discharge roller 350.
  • the stacking unit 40 stacks the documents discharged from the transport unit 30.
  • the stacking unit 40 includes a tray 400 and a stopper 450.
  • the tray 400 supports the document discharged from the conveyance unit 30.
  • the tray 400 functions as a support member of the present invention.
  • the stopper 450 stops the document discharged from the conveyance unit 30.
  • the stopper 450 is slidably attached to the tray 400 and protrudes above the tray 400. The position of the stopper 450 can be adjusted according to the size of the document to be discharged.
  • FIG. 4A and 4B are perspective views of the stacking unit 40.
  • FIG. FIG. 4A is a diagram illustrating a state in which the stopper 450 is housed.
  • FIG. 4B is a diagram illustrating a state in which the stopper 450 is extended.
  • 5A and 5B are side views of the stacking unit 40.
  • FIG. 5A is a diagram illustrating a state in which the stopper 450 is stored.
  • FIG. 5B is a diagram showing a state in which the stopper 450 is extended.
  • Stopper 450 slides between the storage position (position in FIG. 5A) and the extended position (position in FIG. 5B) along an arcuate sliding locus. By sliding the stopper 450, the amount of protrusion of the stopper 450 from the tray 400 changes. That is, the amount of protrusion of the stopper 450 from the tray 400 increases as it moves toward the extended position.
  • FIG. 6A and 6B are side views showing a state where the document M is stacked on the stacking unit 40.
  • FIG. FIG. 6A shows a state in which documents M (for example, Legal size) longer than the tray 400 are stacked.
  • FIG. 6B shows a state in which documents M (for example, A4 size) shorter than the tray 400 are stacked.
  • the stopper 450 has a plurality of recesses and a protrusion 459.
  • the plurality of recesses include a first recess 457 and a second recess 458.
  • the first recess 457 and the second recess 458 are in communication with each other via a protrusion 459.
  • the first recess 457 and the second recess 458 are recessed from the protrusion 459.
  • the leading edge of the document M in the discharge direction hits the stopper 450 and the document M stops.
  • the leading end in the discharge direction of the document M abuts against the second recess 458 of the stopper 450, and the document M stops.
  • the document M is a document M shorter than the tray 400, as shown in FIG. 6B, the leading end of the document M in the discharge direction comes into contact with the first recess 457 of the stopper 450, and the document M stops.
  • the document M is supported on the tray 400 while being curved in an arc along the tray 400 and the stopper 450.
  • at least one of the plurality of recesses is preferably provided at a position where a frequently used document M (for example, A4 size) hits.
  • the leading end in the discharge direction of the original M discharged from the conveying unit 30 hits the stopper 450 and the original M stops. For this reason, the document M can be stopped at a predetermined position with high accuracy as compared with the case where the document is bent along the mountain-shaped guide plate and the conveyance force is attenuated as in the sheet conveying device of Patent Document 1. As a result, dropping of the document M from the tray 400, unevenness of a plurality of stacked documents M, and the like can be suppressed.
  • the stopper 450 has a plurality of recesses (first recess 457 and second recess 458). That is, the stopper 450 has a plurality of surfaces against which the leading end of the document M in the discharge direction abuts. Therefore, it is possible to suppress unevenness of a plurality of documents M stacked on documents M of different sizes.
  • FIGS. 6A and 6B are side views showing a state in which the document M is stacked on the stacking unit 1040 of the comparative example.
  • 7A shows a state where documents M longer than the tray 1400 are stacked
  • FIG. 7B shows a state where documents M shorter than the tray 1400 are stacked.
  • the stacking unit 1040 does not have the stopper 450 shown in FIGS. 6A and 6B, and other configurations are the same as those of the stacking unit 40 shown in FIGS. 6A and 6B.
  • the leading end in the discharge direction of the document M protrudes from the leading end of the tray 1400. For this reason, there is a possibility that the document M may fall off the tray 1400 when the document conveyance speed is high.
  • the leading end of the document M in the discharge direction abuts against the stopper 450, so that the document M can be prevented from dropping from the tray 400.
  • the stacking unit 1040 of the comparative example when a plurality of documents M shorter than the tray 1400 are stacked, the document M discharged first is pushed onto the document M to be discharged next. Is displaced. For this reason, there is a possibility that the document M is dropped from the tray 1400 and the plurality of stacked documents M are not aligned.
  • the leading end portion in the discharge direction of the original M abuts against the stopper 450, so that the positions of the plurality of originals M can be substantially aligned, and the stacked plural sheets The occurrence of unevenness in the original M can be suppressed.
  • the stopper 450 protrudes above the tray 400 even in the storage position (the position in FIG. 5A). Therefore, even when the number of documents M is small, unevenness of the documents M can be suppressed.
  • FIG. 8 is a side view of the stopper 450 and the holder 410 that supports the stopper 450.
  • FIG. 9 is a bottom view of the stopper 450 and the holder 410.
  • the holder 410 is a member that constitutes a part of the tray 400, and supports the stopper 450 slidably.
  • the stacking unit 40 of this embodiment further includes a locking unit 456.
  • the locking portion 456 locks the stopper 450 with respect to the tray 400 at a plurality of positions.
  • the locking portion 456 includes a first engagement rib 454, a second engagement rib 455, and a locking claw 412c.
  • the first engagement rib 454 and the second engagement rib 455 are formed on the stopper 450. Further, the locking claw 412 c is formed on the holder 410. The locking claw 412c is cantilevered and supported by the holder 410 and can be elastically deformed. The 1st engagement rib 454 and the 2nd engagement rib 455 are engaged with the latching claw 412c so that engagement / disengagement is possible. The first engagement rib 454 and the second engagement rib 455 function as the engagement protrusion of the present invention.
  • FIG. 10A and 10B are cross-sectional views taken along the line XX of FIG.
  • FIG. 10A shows a state in which the stopper 450 is stored
  • FIG. 10B shows a state in which the stopper 450 is extended.
  • the first engagement rib 454 engages with the locking claw 412c, and the stopper 450 is locked
  • the second engagement rib 455 is engaged with the locking claw 412c, and the stopper 450 is locked.
  • the locking portion 456 of the present embodiment is configured by the first engaging rib 454 and the second engaging rib 455 formed on the stopper 450 and the locking claw 412c formed on the holder 410, the stopper A click feeling is obtained during the operation of 450. Therefore, the user can confirm that the stopper 450 is locked at a predetermined position. In addition, since the number of parts does not increase by providing the latching
  • FIGS. 11A to 15B are perspective views of the stopper 450.
  • FIG. FIG. 11A is a perspective view of the stopper 450 viewed from obliquely above
  • FIG. 11B is a perspective view of the stopper 450 viewed from obliquely below.
  • the stopper 450 has a tongue-like shape and is made of synthetic resin or the like. As shown in FIG. 11A, boss portions 451 are formed on both side surfaces on one end side of the stopper 450. As shown in FIG. 11B, on the lower surface of the stopper 450, a pair of first guide ribs 452 curved in an arc shape, a pair of second guide ribs 453 curved in an arc shape, a first engagement rib 454, A second engagement rib 455 is formed. The pair of first guide ribs 452 extends in the longitudinal direction of the stopper 450 from one end side to the other end side of the stopper 450.
  • the pair of second guide ribs 453 are provided inside the pair of first guide ribs 452 and extend in the longitudinal direction of the stopper 450.
  • the first engagement rib 454 is provided between one ends of the pair of second guide ribs 453 and extends in the width direction of the stopper 450.
  • the second engagement rib 455 is provided between the other ends of the pair of second guide ribs 453 and extends in the width direction of the stopper 450.
  • FIG. 12A and 12B are perspective views of the holder 410.
  • FIG. FIG. 12A is a perspective view of the holder 410 as viewed obliquely from above
  • FIG. 12B is a perspective view of the holder 410 as viewed from obliquely below.
  • the holder 410 has a substantially rectangular parallelepiped shape and is formed of a synthetic resin or the like. As shown in FIG. 12A, the holder 410 has arcuate guide grooves 411 formed on both side surfaces, and engaging portions 412 formed inside. A boss portion 451 of the stopper 450 is slidably engaged with each of the pair of guide grooves 411. A stopper 450 is slidably engaged with the engaging portion 412.
  • the engaging portion 412 has a pair of first guide surfaces 412a, a pair of second guide surfaces 412b, and locking claws 412c.
  • the pair of first guide surfaces 412a are arranged in the width direction of the holder 410 and are inclined with respect to the horizontal plane.
  • the lower edges of the first guide ribs 452 of the stopper 450 are in sliding contact with the pair of first guide surfaces 412a.
  • the pair of second guide surfaces 412 b is substantially vertical and faces the holder 410 in the width direction.
  • the outer surfaces of the second guide ribs 453 of the stopper 450 are in sliding contact with the pair of second guide surfaces 412b.
  • FIG. 13A and 13B are sectional views taken along line XIII-XIII in FIG.
  • FIG. 13A shows a state in which the stopper 450 is stored
  • FIG. 13B shows a state in which the stopper 450 is extended.
  • each of the pair of first guide ribs 452 extends along the first guide surface 412 a of the engaging portion 412. Slide.
  • Each of the pair of second guide ribs 453 slides along the second guide surface 412b (see FIG. 12B) of the engaging portion 412.
  • FIG. 14A and 14B are perspective views of the stopper 450 and the holder 410, showing a state in which the stopper 450 is stored.
  • FIG. 14A is a view of the stopper 450 and the holder 410 as viewed obliquely from above
  • FIG. 14B is a view of the stopper 450 and the holder 410 as viewed from obliquely rearward.
  • the stopper 450 When the length of the document M in the conveyance direction is shorter than the length of the tray 400, the stopper 450 is stored in the holder 410 as shown in FIGS. 14A and 14B. In this state, since the first engagement rib 454 (see FIG. 10A) engages with the locking claw 412c and the stopper 450 is held, the stopper 450 does not move due to an impact or the like. When a force is applied to the stopper 450 in the pulling direction, the locking claw 412c is elastically deformed downward, the first engagement rib 454 is detached from the locking claw 412c, and the stopper 450 moves.
  • FIG. 15A and 15B are perspective views of the stopper 450 and the holder 410, and show a state in which the stopper 450 is pulled out.
  • FIG. 15A is a view of the stopper 450 and the holder 410 as viewed obliquely from above
  • FIG. 15B is a view of the stopper 450 and the holder 410 as viewed from obliquely rearward.
  • the stopper 450 When the length of the document M in the transport direction is longer than the length of the tray 400, the stopper 450 is pulled out from the holder 410 as shown in FIGS. 15A and 15B. In this state, the second engagement rib 455 (see FIG. 10B) is engaged with the locking claw 412c, so that the stopper 450 does not move due to an impact or the like.
  • the locking claw 412c When a force is applied to the stopper 450 in the direction in which it is stored in the holder 410, the locking claw 412c is elastically deformed downward, the second engagement rib 455 is detached from the locking claw 412c, and the stopper 450 moves.
  • the sheet conveying apparatus 10 can handle a plurality of types of documents M having different sizes. Further, in the sheet conveying apparatus 10, the document M is stopped by abutting the leading end portion of the document M discharged to the stacking unit 40 against the stopper 450, so that the document M can be accurately stopped at a predetermined position. it can. As a result, dropping of the document M from the tray 400, unevenness of a plurality of stacked documents M, and the like can be suppressed.
  • the unevenness of the originals M can be suppressed even when the number of the originals M is small because the stoppers 450 protrude upward from the tray 400.
  • the locking portion 456 that locks the stopper 450 to the holder 410 includes a first engagement rib 454 and a second engagement rib 455 formed on the stopper 450, and a locking claw 412 c formed on the holder 410. Since it is configured, a click feeling is obtained when the stopper 450 is operated, and the user can confirm that the stopper 450 is locked at a predetermined position. Moreover, since the number of parts does not increase by providing the latching
  • the present invention can also be applied to a sheet conveying apparatus other than the original conveying apparatus.
  • a sheet conveying apparatus including a conveying unit that conveys a recording medium (for example, copy paper) on which an image is formed by the image forming unit, or a sheet that has been post-processed (for example, staple processing) by the post-processing unit
  • the present invention can also be applied to a sheet conveying apparatus including a conveying unit that conveys the sheet.
  • FIG. 16 is a cross-sectional view of the image forming apparatus 1 according to an embodiment of the present invention.
  • the image forming apparatus 1 includes an image reading device 100, a sheet conveying device 10a, a sheet conveying device 10b, an image forming unit 15, a post-processing device 5, a switching claw 61, and a paper feeding cassette 11.
  • the image reading apparatus 100 includes a sheet conveying apparatus 10 and a reading unit 120.
  • the reading unit 120 reads an image formed on a document conveyed by the sheet conveying apparatus 10.
  • the reading unit 120 includes a housing 122, a contact glass 124, and an imaging unit 130.
  • the contact glass 124 is provided on the upper surface of the housing 122.
  • Contact glass 124 includes contact glass 124a and contact glass 124b.
  • the contact glass 124a is used for reading a document placed on the contact glass 124a.
  • the contact glass 124 b is installed at a position where the conveyance path P of the sheet conveying apparatus 10 is exposed, and the contact glass 124 b is used for reading a document conveyed by the sheet conveying apparatus 10.
  • the contact glass 124 b is provided so as to face the conveyance path P in the sheet conveying apparatus 10.
  • the imaging unit 130 is disposed in the housing 122.
  • the imaging unit 130 reads an image of a document from below through the contact glass 124a while the sheet placed on the contact glass 124a is pressed by the sheet conveying device 10.
  • the imaging unit 130 reads an image of the document from below through the contact glass 124a in a state where the document is conveyed onto the contact glass 124b.
  • the imaging unit 130 includes a light source 132, an optical system 134, and an imaging unit 136.
  • the optical system 134 includes a reflection mirror 134a, a reflection mirror 134b, and a reflection mirror 134c.
  • the light source 132 and the reflection mirror 134 a are mounted on the carriage 133.
  • a slit 135 is provided on the upper surface of the carriage 133.
  • the carriage 133 moves while irradiating light from the light source 132. Further, when the reading unit 120 reads a document conveyed on the contact glass 124b, the carriage 133 remains below the contact glass 124b.
  • the light emitted from the light source 132 is reflected by the document, passes through the slit 135, and reaches the imaging unit 136 through the optical system 134.
  • the imaging unit 136 a process in which the light emitted from the light source 132 reaches the imaging unit 136 will be described.
  • the light source 132 irradiates the sheet from below, the light emitted from the light source 132 passes through the slit 135, is reflected by the document, and reaches the reflection mirror 134a.
  • the light that reaches the reflection mirror 134a is reflected by the reflection mirror 134a, guided by the reflection mirror 134b and the reflection mirror 134c, and reaches the imaging unit 136.
  • the imaging unit 136 is, for example, a CCD (Charge Coupled Device) sensor.
  • the imaging unit 136 generates an analog electrical signal based on the reached light. Thereafter, an analog electric signal is converted into a digital electric signal in an A / D converter (not shown). The digital electrical signal is input to the control unit.
  • CCD Charge Coupled Device
  • the sheet conveying apparatus 10a includes a conveying unit 30a and a stacking unit 40a.
  • the transport unit 30 a includes a paper feed roller 12, a transport roller pair 13, a registration roller pair 14, a fixing device 16, and a discharge roller pair 17.
  • the stacking unit 40a includes a discharge tray 400a (support member) and a stopper 450a.
  • the paper feed roller 12 feeds the recording medium S from the paper feed cassette 11 one by one.
  • the recording medium S fed out by the paper feed roller 12 is conveyed to the image forming unit 15 by the conveyance roller pair 13 and the registration roller pair 14.
  • the image forming unit 15 performs an image forming process for forming an image based on the image data on the recording medium S conveyed from the paper feeding cassette 11.
  • image data for example, image data generated by the image reading apparatus 100 reading a document or image data received from an external computer via a communication network is used.
  • the recording medium S on which the image is formed by the image forming unit 15 is conveyed to the fixing device 16.
  • the fixing device 16 heat-fixes the image formed on the recording medium S to the recording medium S.
  • the fixing device 16 includes a heating roller containing a heating element and a pressure roller. The heating roller and the pressure roller form a fixing nip portion by being pressed against each other. As the recording medium S passes through the fixing nip portion, the toner on the surface of the recording medium S is melted and heated, and the toner image is fixed on the recording medium S.
  • the switching claw 61 selectively guides the recording medium S conveyed from the fixing device 16 to the discharge tray 400a or the post-processing device 5. When post-processing is not performed, the recording medium S is discharged to the discharge tray 400 a by the discharge roller pair 17.
  • the recording medium S is stopped at the predetermined position with high precision because the recording medium S is stopped by abutting the leading end of the recording medium S discharged to the stacking section 40a in the discharge direction against the stopper 450a. Can be stopped.
  • the sheet conveying apparatus 10b includes a conveying unit 30b and a stacking unit 40b.
  • the transport unit 30 a includes a discharge roller pair 18 and a discharge roller pair 19.
  • the stacking unit 40a includes a sheet bundle receiving unit 400b (support member) and a stopper 450b.
  • the post-processing device 5 When performing post-processing, the recording medium S is conveyed to the post-processing device 5.
  • the post-processing device 5 performs post-processing (for example, stapling) on the recording medium S on which an image is formed by the image forming unit 15.
  • the post-processing apparatus 5 includes a stapler 51, a processing tray 53, a width adjusting member 54, and a front approach member 55.
  • the recording medium S discharged by the discharge roller pair 18 is loaded on the processing tray 53.
  • the bundle of recording media S on the processing tray 53 is set at the stapling position by the width adjusting member 54 and the leading member 55.
  • the stapler 51 performs stapling processing in units of a predetermined number of sheets.
  • the bundle of recording media S subjected to the stapling process is discharged to the sheet bundle receiving unit 400 b by the discharge roller pair 18 and the discharge roller pair 19.
  • the recording medium S is stopped at the predetermined position with high precision because the recording medium S is stopped by abutting the leading end of the recording medium S discharged to the stacking section 40b in the discharge direction against the stopper 450b. Can be stopped.
  • the locking claw is formed on a holder that forms a part of the support member, and the engaging protrusion is formed on the stopper.
  • the engaging claw may be formed on the stopper and the engaging protrusion may be formed on the support member.
  • the locking portion is configured to lock the stopper at two positions, but the locking portion has three or more positions at the stopper. It may be configured to be locked with.
  • the present invention is applied to an image forming apparatus including an electrophotographic image forming unit.
  • the present invention can also be applied to an image forming apparatus including an image forming unit.

Landscapes

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

Abstract

La présente invention concerne un dispositif de transport de feuilles (10) pourvu d'une partie de transport (30) et d'une partie de maintien (40). La partie de transport (30) transporte des feuilles (M, S). La partie de maintien (40) maintient les feuilles (M, S) déchargées de la partie de transport (30). La partie de maintien (40) comporte un élément de support (400) et un butoir (450). L'élément de support (400) supporte les feuilles. Le butoir (450) est monté de manière coulissante sur l'élément de support (400) et fait saillie vers le haut de l'élément de support (400). Le butoir (450) coulisse le long d'un chemin de coulissement en forme d'arc entre une position escamotée et une position déployée, et la quantité de saillie du butoir par rapport à l'élément de support (400) va en augmentant en approchant la position déployée. Lorsque l'extrémité avant des feuilles (M, S), dans le sens de décharge, vient buter contre le butoir (450), les feuilles (M, S) sont arrêtées.
PCT/JP2015/051837 2014-03-20 2015-01-23 Dispositif de transport de feuilles, dispositif de lecture d'image et dispositif de formation d'image WO2015141277A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-057840 2014-03-20
JP2014057840 2014-03-20

Publications (1)

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WO2015141277A1 true WO2015141277A1 (fr) 2015-09-24

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190158U (fr) * 1987-05-21 1988-12-07
JPH0761684A (ja) * 1993-08-27 1995-03-07 Canon Inc 紙葉類積載装置及び画像記録装置
JPH0912203A (ja) * 1995-06-30 1997-01-14 Canon Inc 排紙装置を備える画像形成装置
JPH11130316A (ja) * 1997-10-27 1999-05-18 Ricoh Co Ltd 画像形成装置
JP2002356263A (ja) * 2001-05-31 2002-12-10 Seiko Epson Corp 記録装置及び該記録装置における排紙スタッカ構造
JP2007261748A (ja) * 2006-03-28 2007-10-11 Kyocera Mita Corp 画像形成装置
JP2008179472A (ja) * 2006-12-28 2008-08-07 Ricoh Co Ltd 排紙トレイの支持構造及び画像形成装置
WO2010064672A1 (fr) * 2008-12-05 2010-06-10 コクヨ株式会社 Appareil et plateau d’éjection de papier

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190158U (fr) * 1987-05-21 1988-12-07
JPH0761684A (ja) * 1993-08-27 1995-03-07 Canon Inc 紙葉類積載装置及び画像記録装置
JPH0912203A (ja) * 1995-06-30 1997-01-14 Canon Inc 排紙装置を備える画像形成装置
JPH11130316A (ja) * 1997-10-27 1999-05-18 Ricoh Co Ltd 画像形成装置
JP2002356263A (ja) * 2001-05-31 2002-12-10 Seiko Epson Corp 記録装置及び該記録装置における排紙スタッカ構造
JP2007261748A (ja) * 2006-03-28 2007-10-11 Kyocera Mita Corp 画像形成装置
JP2008179472A (ja) * 2006-12-28 2008-08-07 Ricoh Co Ltd 排紙トレイの支持構造及び画像形成装置
WO2010064672A1 (fr) * 2008-12-05 2010-06-10 コクヨ株式会社 Appareil et plateau d’éjection de papier

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