EP0855626A3 - Sheet transport apparatus - Google Patents

Sheet transport apparatus Download PDF

Info

Publication number
EP0855626A3
EP0855626A3 EP98300325A EP98300325A EP0855626A3 EP 0855626 A3 EP0855626 A3 EP 0855626A3 EP 98300325 A EP98300325 A EP 98300325A EP 98300325 A EP98300325 A EP 98300325A EP 0855626 A3 EP0855626 A3 EP 0855626A3
Authority
EP
European Patent Office
Prior art keywords
sheet transport
nip
transport apparatus
normal force
sheet
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP98300325A
Other languages
German (de)
French (fr)
Other versions
EP0855626A2 (en
Inventor
Lisbeth S. Quesnel
Frank C. Darling, Jr.
Cesidio J. Dicesare
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of EP0855626A2 publication Critical patent/EP0855626A2/en
Publication of EP0855626A3 publication Critical patent/EP0855626A3/en
Withdrawn legal-status Critical Current

Links

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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • 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
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
    • G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
    • G03G15/6567—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for deskewing or aligning
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/33—Modifying, selecting, changing orientation
    • B65H2301/331—Skewing, correcting skew, i.e. changing slightly orientation of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure
    • 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
    • G03G15/232—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
    • G03G15/234—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters
    • G03G15/235—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters the image receiving member being preconditioned before transferring the second image, e.g. decurled, or the second image being formed with different operating parameters, e.g. a different fixing temperature
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding
    • G03G2215/00561—Aligning or deskewing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Paper Feeding For Electrophotography (AREA)

Abstract

Described herein is an apparatus for adjusting the nip normal force in a sheet transport. The transport has a drive roll (122) and an idler roll (124,125) forming a nip therewith. One end (121) of the idler roll is fixed and the other end (127) has an adjusting mechanism (130) to increase or decrease the normal force exerted in the nip to cause a sheet to skew as a result of the normal force.
EP98300325A 1997-01-21 1998-01-16 Sheet transport apparatus Withdrawn EP0855626A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US786443 1985-10-11
US78644397A 1997-01-21 1997-01-21

Publications (2)

Publication Number Publication Date
EP0855626A2 EP0855626A2 (en) 1998-07-29
EP0855626A3 true EP0855626A3 (en) 1998-08-05

Family

ID=25138595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98300325A Withdrawn EP0855626A3 (en) 1997-01-21 1998-01-16 Sheet transport apparatus

Country Status (2)

Country Link
EP (1) EP0855626A3 (en)
JP (1) JPH10203688A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4738965B2 (en) * 2005-10-07 2011-08-03 株式会社セイコーアイ・インフォテック Conveying mechanism and recording apparatus
JP4639154B2 (en) * 2006-01-30 2011-02-23 株式会社サトー Conveyor roller pressure adjustment device
JP5284161B2 (en) * 2009-03-30 2013-09-11 キヤノン株式会社 Sheet conveying apparatus, image forming apparatus, and image reading apparatus
NL2028040B1 (en) * 2021-04-22 2022-11-02 Canon Production Printing Holding Bv A sheet conveyor for a printer comprising a fastener for securing a roller onto a frame of the conveyor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167841A (en) * 1984-02-09 1985-08-31 Fuji Xerox Co Ltd Paper skew correcting device
JPH02243437A (en) * 1989-03-14 1990-09-27 Canon Inc Sheet feed mechanism
EP0562808A1 (en) * 1992-03-26 1993-09-29 Xerox Corporation Sheet transport apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167841A (en) * 1984-02-09 1985-08-31 Fuji Xerox Co Ltd Paper skew correcting device
JPH02243437A (en) * 1989-03-14 1990-09-27 Canon Inc Sheet feed mechanism
EP0562808A1 (en) * 1992-03-26 1993-09-29 Xerox Corporation Sheet transport apparatus

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
D.C.ESTABROOKS, C.W.KNAPPENBERGER: "Nip Roller/Force Equalizing Assembly. August 1980.", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 23, no. 3, August 1980 (1980-08-01), NEW YORK, US, pages 939, XP002064924 *
EDWARDS, GUNNEL, AND JONEZ: "Variable Normal Force for Thrust and Idler Rollers. November 1980.", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 23, no. 6, November 1980 (1980-11-01), NEW YORK, US, pages 2228 - 2229, XP002064925 *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 002 (M - 444) 8 January 1986 (1986-01-08) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 570 (M - 1060) 18 December 1990 (1990-12-18) *

Also Published As

Publication number Publication date
JPH10203688A (en) 1998-08-04
EP0855626A2 (en) 1998-07-29

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