WO2015146325A1 - Dispositif de transport de feuille, et dispositif de formation d'image - Google Patents

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

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Publication number
WO2015146325A1
WO2015146325A1 PCT/JP2015/053624 JP2015053624W WO2015146325A1 WO 2015146325 A1 WO2015146325 A1 WO 2015146325A1 JP 2015053624 W JP2015053624 W JP 2015053624W WO 2015146325 A1 WO2015146325 A1 WO 2015146325A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet conveying
image forming
forming apparatus
electric wire
protrusion
Prior art date
Application number
PCT/JP2015/053624
Other languages
English (en)
Japanese (ja)
Inventor
健史 吉田
裕行 原田
浩高 石田
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 WO2015146325A1 publication Critical patent/WO2015146325A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B41J29/13—Cases or covers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/60—Apparatus which relate to the handling of originals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
    • H04N1/00551—Top covers or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section

Definitions

  • the present invention relates to a sheet conveying apparatus and an image forming apparatus.
  • An image forming apparatus such as a copying machine, a fax machine, a scanner, a printer, or a multifunction machine is equipped with a sheet conveying device.
  • the image forming apparatus includes an image reading unit and an image forming unit.
  • the image reading unit reads a read image recorded on a document.
  • the image forming unit forms an image on a sheet such as a copy sheet based on the image read by the image reading unit.
  • the sheet conveying device is used for conveying a document to an image reading unit.
  • the sheet conveying device is movably attached to the image forming apparatus main body.
  • the sheet conveying apparatus includes a conveying unit that conveys an original and a stacking unit on which an original discharged from the conveying unit is stacked.
  • the sheet conveying device and the image forming apparatus main body are electrically connected by electric wires. Electric power and signals necessary for the operation of the sheet conveying apparatus are supplied from the image forming apparatus main body to the sheet conveying apparatus via the electric wires.
  • the contact glass of the image forming apparatus main body is exposed.
  • a document that cannot be conveyed by the sheet conveying apparatus is placed on the contact glass.
  • the document that cannot be transported by the sheet transport device is, for example, a book-shaped document.
  • a read image recorded on a document placed on the contact glass is read by a scanner.
  • the sheet conveying device is provided with a protrusion that restricts the movement of the document. The protrusions prevent the originals stacked on the sheet conveying apparatus from dropping when the sheet conveying apparatus moves relative to the image forming apparatus main body.
  • the sheet conveying device may be separated from the contact glass.
  • the electric wires are bent so that no stress is applied to the electric wires connecting the sheet conveying apparatus and the image forming apparatus main body.
  • the bent portion of the electric wire is exposed, the bent portion may come into contact with the wall of the room or other equipment, and the electric wire may be damaged or deteriorated. Therefore, in the image forming apparatus disclosed in Patent Document 1, the image forming apparatus main body is provided with a recess. A hook is provided inside the recess. The electric wire is locked by the hook and is stored inside the recess.
  • Patent Document 1 has a problem that the structure of the main body of the image forming apparatus is complicated and the cost is increased.
  • the present invention has been made in view of the above problems, and its purpose is to suppress damage and deterioration of an electric wire that electrically connects the sheet conveying apparatus and the image forming apparatus main body without complicating the structure.
  • An object of the present invention is to provide a sheet conveying apparatus and an image forming apparatus that can be used.
  • a first aspect of the present invention is a sheet conveying device that is movably attached to a main body of an image forming apparatus that forms an image on a sheet.
  • the sheet conveying apparatus includes a conveying unit, a stacking unit, and a protrusion.
  • the conveyance unit conveys a sheet.
  • On the stacking unit sheets discharged from the transport unit are stacked.
  • the protrusion restricts the movement of the sheets stacked on the stacking unit.
  • the protrusion is hollow and is formed so as to accommodate an electric wire for electrically connecting the main body of the image forming apparatus and the sheet conveying apparatus.
  • a second aspect according to the present invention is an image forming apparatus.
  • the image forming apparatus includes a sheet conveying apparatus according to a first aspect and a main body of the image forming apparatus.
  • the present invention it is possible to suppress damage and deterioration of the electric wire that electrically connects the sheet conveying apparatus and the image forming apparatus main body without complicating the structure.
  • FIG. 1 is a perspective view of an upper part of an image forming apparatus including a sheet conveying device according to a first embodiment of the present invention as viewed from the front.
  • 1 is a perspective view of an upper part of an image forming apparatus including a sheet conveying device according to a first embodiment of the present invention as viewed from the rear.
  • FIG. 1B is a perspective view illustrating a state where the sheet conveying apparatus illustrated in FIG. 1A is moved upward.
  • FIG. 1B is a side view of the upper part of the image forming apparatus shown in FIG. 1A.
  • FIG. 3 is a side view of the upper part of the image forming apparatus shown in FIG. 2.
  • 1B is a plan view of the image forming apparatus shown in FIG. 1A.
  • FIG. 5 is a cross-sectional view taken along line VV in FIG. 4.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 4.
  • FIG. 6 is a perspective view of an upper part of an image forming apparatus including a sheet conveying device according to a second embodiment of the present invention. It is a side view of the upper part of the image forming apparatus shown by FIG. It is a side view of the upper part of the image forming apparatus shown by FIG.
  • FIG. 8 is a plan view of the image forming apparatus shown in FIG. 7.
  • FIG. 10 is a sectional view taken along line XX in FIG. 9.
  • FIG. 10 is a sectional view taken along line XI-XI in FIG. 9.
  • FIG. 6 is a perspective view illustrating a state in which a document is placed on a contact glass of an image forming apparatus in which a sheet conveying device rotates.
  • FIG. 13 is a side view of the image forming apparatus in FIG. 12.
  • FIG. 1 is a perspective view of an upper part of an image forming apparatus 1 including a sheet conveying device 3 according to the first embodiment of the present invention as viewed from the front
  • FIG. 1B is an upper view of the image forming apparatus 1 as viewed from the rear. It is a perspective view.
  • the image forming apparatus 1 shown in FIG. 1A is, for example, a copying machine, a fax machine, a scanner, a printer, or a multifunction machine.
  • the image forming apparatus 1 forms an image on a sheet such as a copy sheet.
  • the image forming apparatus 1 includes an image forming apparatus main body 2 and a sheet conveying apparatus 3 mounted on the image forming apparatus main body 2.
  • the sheet conveying device 3 conveys a sheet on which a read image is recorded (hereinafter referred to as “original”).
  • the sheet conveying device 3 is movably attached to the image forming apparatus main body 2.
  • the sheet conveying apparatus 3 includes a conveying unit 30 that conveys a document, and a stacking unit 40 on which the document discharged from the conveying unit 30 is stacked.
  • the sheet conveying device 3 has a protrusion 50.
  • the protrusion 50 regulates the movement of the document stacked on the stacking unit 40 when the sheet conveying device 3 moves.
  • the sheet conveying device 3 is rotatably attached to the image forming apparatus main body 2 via a pair of hinges 4 (only one is shown).
  • the sheet conveying device 3 further includes a document table 20.
  • the document table 20 protrudes obliquely upward from the entrance of the conveyance unit 30. A plurality of documents can be stacked on the document table 20.
  • the transport unit 30 includes a transport roller, a discharge roller, and the like, although not shown.
  • the conveyance unit 30 conveys the originals stacked on the original table 20 one by one along a conveyance path P indicated by a broken line in FIG. 1A.
  • the loading unit 40 includes a tray 41 and a stopper 42.
  • the document is discharged onto the tray 41 and stacked.
  • the stopper 42 stops the document discharged on the tray 41.
  • the stopper 42 is attached to the tray 41 so as to be slidable in the document discharge direction. Therefore, the position of the stopper 42 can be adjusted according to the size of the document.
  • FIG. 2 is a perspective view showing a state where the sheet conveying device 3 is moved upward.
  • the sheet conveying device 3 further includes a document presser 70.
  • the document presser 70 presses the document placed on the image forming apparatus main body 2 so as not to move.
  • the image forming apparatus main body 2 includes an image reading unit 5, a contact glass 6, a scanner (not shown), a paper feeding unit (not shown), an image forming unit (not shown), and a fixing unit (see FIG. (Not shown), a transport mechanism (not shown), and an operation display unit 7 are further provided.
  • the image reading unit 5 reads a read image of a document conveyed by the sheet conveying device 3.
  • a document that cannot be conveyed by the sheet conveying device 3 is placed on the contact glass 6.
  • the document that cannot be transported by the sheet transport device 3 is, for example, a book-shaped document.
  • the scanner reads an image of a document placed on the contact glass 6.
  • the sheet feeding unit supplies a sheet such as a copy sheet to the image forming unit.
  • the image forming unit forms a toner image on the sheet by an electrophotographic method based on the image read by the image reading unit 5 or the scanner.
  • the fixing unit fixes the toner image on the sheet.
  • the transport mechanism discharges the sheet on which the image is formed to a predetermined location.
  • the operation display unit 7 includes a display 71 and an operation button group 72.
  • the display 71 is constituted by a liquid crystal panel or the like.
  • the display 71 displays various information.
  • the operation button group 72 is used for the user to input
  • FIG. 3A and 3B are side views of the upper part of the image forming apparatus 1.
  • FIG. 3A shows a state in which the sheet conveying apparatus 3 is in contact with the upper surface of the image forming apparatus main body 2
  • FIG. 3B shows a state in which the sheet conveying apparatus 3 is separated from the upper surface of the image forming apparatus main body 2.
  • the sheet conveying device 3 rotates upward from the state shown in FIG. 3A with the pair of hinges 4 (see FIG. 1B) as fulcrums
  • the document M stacked on the stacking unit 40 may fall from the sheet conveying device 3. .
  • the document M is brought into contact with the protrusion 50 and the movement of the document M is restricted. Therefore, the document M can be prevented from dropping from the sheet conveying device 3.
  • FIG. 4 is a plan view of the image forming apparatus 1.
  • 5 is a cross-sectional view taken along the line VV in FIG. 4, and
  • FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG.
  • the protrusion 50 is hollow.
  • the protrusion 50 is formed so as to accommodate an electric wire C that electrically connects the sheet conveying apparatus 3 and the image forming apparatus main body 2.
  • the internal space 50a of the protrusion 50 is formed so as to taper upward. Therefore, the protrusion 50 restricts the movement of the electric wire C in the radial direction. Therefore, since the change of the position of the electric wire C accompanying the movement of the sheet conveying apparatus 3 is suppressed, the generation of radio noise can be suppressed. Further, in the present embodiment, the appearance of the protrusion 50 is tapered. Therefore, since the protrusion 50 looks small, it is preferable in terms of appearance.
  • an electric wire holder 51 is provided inside the protrusion 50.
  • the electric wire holder 51 holds the electric wire C so as to be slidable in the length direction.
  • the electric wire C is held by the electric wire holder 51 in a state where a part of the electric wire C is bent upward in an arc shape.
  • the electric wire holder 51 can allow the electric wire C to slide along with the movement of the sheet conveying device 3. With this configuration, it is possible to suppress a great stress from being applied to the electric wire C. Since the change in the position of the electric wire C is suppressed by providing the electric wire holder 51, the generation of radio noise can be suppressed.
  • the electric wire holder 51 may be omitted when the radio noise is within the allowable range even without the electric wire holder 51. Further, the electric wire holder 51 can be formed integrally with the housing of the sheet conveying apparatus 3. When the electric wire holder 51 is formed in the sheet conveying apparatus 3, the number of parts does not increase, and the structure of the sheet conveying apparatus 3 is not complicated.
  • the bent portion of the electric wire C is accommodated in the protrusion 50, the bent portion of the electric wire C does not contact the wall of the room or other equipment. Therefore, damage and deterioration of the electric wire C can be suppressed. Further, when the sheet conveying apparatus 3 is moved with respect to the image forming apparatus main body 2, it is possible to suppress the electric wire C from being sandwiched between the sheet conveying apparatus 3 and the image forming apparatus main body 2.
  • the protrusion 50 is hollow, and the electric wire C is accommodated in the internal space 50 a of the protrusion 50. Therefore, according to the present embodiment, even if the electric wire C is accommodated in the protrusion 50, the protrusion is also provided in the existing sheet conveying device, but the number of parts does not increase, and the structure Can be prevented from being damaged and deteriorated.
  • FIG. 7 is a perspective view of the upper part of the image forming apparatus 11 including the sheet conveying apparatus 13 according to the second embodiment of the present invention.
  • symbol is used for the site
  • the sheet conveying device 13 is attached to the image forming apparatus main body 2 so as to be movable up and down.
  • FIG. 8A and 8B are side views of the upper portion of the image forming apparatus 11 shown in FIG. Specifically, FIG. 8A shows a state where the sheet conveying device 13 is in contact with the upper surface of the image forming apparatus main body 2, and FIG. 8B shows a state where the sheet conveying device 13 is separated from the upper surface of the image forming apparatus main body 2.
  • FIG. 8A the electric wire C accommodated in the protrusion 50 is bent similarly to the state shown in FIG. As the sheet conveying device 13 rises, the amount of deflection of the electric wire C housed inside the protrusion 50 gradually decreases.
  • the sheet conveying device 13 has a pair of guide shafts 60 (only one is shown) protruding downward, and the sheet conveying device 13 is connected to the image forming apparatus main body 2 via the guide shafts 60. It is attached to the hoist freely.
  • FIG. 9 is a plan view of the image forming apparatus 11.
  • 10 is a cross-sectional view taken along the line XX of FIG. 9, and
  • FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG.
  • the deflection amount of the electric wire C housed in the protrusion 50 decreases.
  • the sheet conveying device 13 is lowered from the state shown in FIG. 8B, the amount of deflection of the electric wire C stored in the protrusion 50 increases.
  • FIG. 12 is a perspective view showing a state in which the document M is placed on the contact glass 6 of the image forming apparatus in which the sheet conveying device rotates
  • FIG. 13 is a side view of the image forming apparatus shown in FIG. It is.
  • the inclination angle ⁇ of the document holder 70 with respect to the contact glass 6 increases as the thickness of the document M placed on the contact glass 6 increases. That is, when the document retainer 70 of the sheet conveying device 3 is brought into contact with the document M, the inclination angle ⁇ of the document retainer 70 with respect to the contact glass 6 increases as the thickness of the document M placed on the contact glass 6 increases. As shown in FIG. As a result, the distance between the document holder 70 and the contact glass 6 is increased. For this reason, it becomes easy for external light to enter the scanner, and a portion of the copy paper other than the portion corresponding to the document is printed in black, so that useless toner is consumed.
  • the movement distance of the electric wire C (see FIG. 6) is larger than that of the image forming apparatus in which the sheet conveying apparatus is rotated, so that the deflection amount of the electric wire C is large.
  • the electric wire since the electric wire is exposed, the larger the amount of deflection of the electric wire, the easier it is for the electric wire to come into contact with the wall of the room or other equipment and to be damaged or deteriorated.
  • the electric wire C since the electric wire C is housed in the protrusion 50, damage and deterioration of the electric wire can be more reliably suppressed even in the image forming apparatus in which the sheet conveying device moves up and down.
  • the present invention can also be applied to a sheet conveying apparatus that conveys a sheet other than a document.
  • the present invention is also applied to a sheet conveying apparatus that conveys copy paper on which an image is formed by an image forming unit, and a sheet conveying apparatus that conveys a sheet that has been post-processed (for example, staple processing) by a post-processing unit. can do.
  • 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.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

La présente invention concerne un dispositif de transport de feuille (3) qui est fixé de manière amovible à un corps principal (2) d'un dispositif de formation d'image qui forme une image sur une feuille. Le dispositif de transport de feuille (3) comprend une section de transport (30), une section d'empilement (40), et une protubérance (50). La section de transport (30) transporte une feuille. Des feuilles qui sont déchargée depuis la section de transport (30) sont empilées dans la section d'empilement (40). La protubérance (50) limite le mouvement des feuilles qui sont empilées dans la section d'empilement (40). La protubérance (50) a une forme creuse et abrite un fil électrique (C) qui connecte électriquement le dispositif de transport de feuille (3) et le corps principal (2) du dispositif de formation d'image.
PCT/JP2015/053624 2014-03-27 2015-02-10 Dispositif de transport de feuille, et dispositif de formation d'image WO2015146325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-066313 2014-03-27
JP2014066313 2014-03-27

Publications (1)

Publication Number Publication Date
WO2015146325A1 true WO2015146325A1 (fr) 2015-10-01

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PCT/JP2015/053624 WO2015146325A1 (fr) 2014-03-27 2015-02-10 Dispositif de transport de feuille, et dispositif de formation d'image

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008268712A (ja) * 2007-04-24 2008-11-06 Ricoh Elemex Corp 画像形成装置
JP2008276058A (ja) * 2007-05-02 2008-11-13 Ricoh Elemex Corp 画像形成装置
JP2011211595A (ja) * 2010-03-30 2011-10-20 Brother Industries Ltd 画像読取装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008268712A (ja) * 2007-04-24 2008-11-06 Ricoh Elemex Corp 画像形成装置
JP2008276058A (ja) * 2007-05-02 2008-11-13 Ricoh Elemex Corp 画像形成装置
JP2011211595A (ja) * 2010-03-30 2011-10-20 Brother Industries Ltd 画像読取装置

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