EP0729842A3 - Media handling in an ink-jet printer - Google Patents

Media handling in an ink-jet printer Download PDF

Info

Publication number
EP0729842A3
EP0729842A3 EP96301348A EP96301348A EP0729842A3 EP 0729842 A3 EP0729842 A3 EP 0729842A3 EP 96301348 A EP96301348 A EP 96301348A EP 96301348 A EP96301348 A EP 96301348A EP 0729842 A3 EP0729842 A3 EP 0729842A3
Authority
EP
European Patent Office
Prior art keywords
print medium
print
printer
paper
transport mechanism
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.)
Granted
Application number
EP96301348A
Other languages
German (de)
French (fr)
Other versions
EP0729842B1 (en
EP0729842A2 (en
Inventor
Jeffrey G. Patrick
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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
Priority claimed from US08/396,801 external-priority patent/US5527123A/en
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of EP0729842A2 publication Critical patent/EP0729842A2/en
Publication of EP0729842A3 publication Critical patent/EP0729842A3/en
Application granted granted Critical
Publication of EP0729842B1 publication Critical patent/EP0729842B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0045—Guides for printing material
    • B41J11/005—Guides in the printing zone, e.g. guides for preventing contact of conveyed sheets with printhead
    • 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
    • B41J13/14—Aprons or guides for the printing section

Landscapes

  • Ink Jet (AREA)
  • Handling Of Cut Paper (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

Described herein is a printer having a printhead (102) which traverses laterally across a sheetlike print medium (110) and which thereby defines a laterally-extending print zone across the print medium. A paper transport mechanism in the printer has drive rollers (114) and associated pinch wheels (180) to drive the print medium through the printer's print zone. The paper transport mechanism further includes an upper print media guide (202) and a lower print medium guide (126). The two print medium guides are shaped at their transverse ends to bow the transverse edges of the print medium downwardly to reduce its tendency to buckle upwardly into the printhead. In order to fit the upper print medium guide into the limited available space above the drive rollers, it is made of a lower molded portion (170) for paper contact and an upper backing portion (172) for rigidity. A pinch finger (191) extends toward the printer's print zone beyond the pinch wheels to establish a pinch point (192) against the drive roller in near proximity to the print zone. To facilitate ejection of printed pages, the upper print medium guide is formed with a series of ribs (204) which contact the paper. The ribs reduce friction and static buildup, and make it easier to push the paper from the paper transport mechanism.
EP19960301348 1995-02-28 1996-02-28 Media handling in an ink-jet printer Expired - Lifetime EP0729842B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/396,801 US5527123A (en) 1995-02-28 1995-02-28 Media handling in an ink-jet printer
US396801 1995-02-28
US526728 1995-09-11
US08/526,728 US5564847A (en) 1995-02-28 1995-09-11 Media handling in an ink-jet printer having guide ribs

Publications (3)

Publication Number Publication Date
EP0729842A2 EP0729842A2 (en) 1996-09-04
EP0729842A3 true EP0729842A3 (en) 1998-07-15
EP0729842B1 EP0729842B1 (en) 2000-07-12

Family

ID=27015657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960301348 Expired - Lifetime EP0729842B1 (en) 1995-02-28 1996-02-28 Media handling in an ink-jet printer

Country Status (4)

Country Link
EP (1) EP0729842B1 (en)
JP (1) JPH09512506A (en)
DE (1) DE69609217T2 (en)
WO (1) WO1996026839A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382857B1 (en) 1998-08-27 2002-05-07 Canon Kabushiki Kaisha Bearing mechanism and conveying apparatus and recording apparatus
US6736561B2 (en) * 2001-01-24 2004-05-18 Xerox Corporation Apparatus and method for the prevention of trailing edge deletion in image forming systems
EP1661726B1 (en) * 2004-11-25 2010-09-01 Océ-Technologies B.V. Sheet handling device with print surface and feed plate
JP4936708B2 (en) 2004-11-25 2012-05-23 オセ−テクノロジーズ ビーブイ Sheet processing apparatus having printing surface and feeding plate
JP4687804B2 (en) * 2009-03-24 2011-05-25 ブラザー工業株式会社 Image forming apparatus
JP5852428B2 (en) * 2011-12-07 2016-02-03 シチズンホールディングス株式会社 Printer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441448A1 (en) * 1990-02-09 1991-08-14 Digital Equipment Corporation Apparatus for recording and/or reading information
EP0487080A1 (en) * 1990-11-22 1992-05-27 Kabushiki Kaisha TEC Printer
EP0622227A2 (en) * 1993-04-27 1994-11-02 Kabushiki Kaisha TEC Ink jet printer
US5393151A (en) * 1993-06-03 1995-02-28 Hewlett-Packard Company Print medium handling system including cockle ribs to control pen-to-print medium spacing during printing
US5419644A (en) * 1993-06-03 1995-05-30 Hewlett-Packard Company Print medium handling system including cockle springs to control pen-to-print medium spacing during printing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818167A1 (en) * 1988-05-26 1989-11-30 Mannesmann Ag DEVICE FOR THE TRANSPORT OF RECORD CARRIERS IN OFFICE MACHINES, ESPECIALLY FOR RECEIPT IN RECEIPT PROCESSING DEVICES
JPH0711070Y2 (en) * 1988-10-17 1995-03-15 旭光学工業株式会社 Paper ejection device
JP2854933B2 (en) * 1990-06-22 1999-02-10 沖電気工業株式会社 Printer paper guide mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441448A1 (en) * 1990-02-09 1991-08-14 Digital Equipment Corporation Apparatus for recording and/or reading information
EP0487080A1 (en) * 1990-11-22 1992-05-27 Kabushiki Kaisha TEC Printer
EP0622227A2 (en) * 1993-04-27 1994-11-02 Kabushiki Kaisha TEC Ink jet printer
US5393151A (en) * 1993-06-03 1995-02-28 Hewlett-Packard Company Print medium handling system including cockle ribs to control pen-to-print medium spacing during printing
US5419644A (en) * 1993-06-03 1995-05-30 Hewlett-Packard Company Print medium handling system including cockle springs to control pen-to-print medium spacing during printing

Also Published As

Publication number Publication date
DE69609217D1 (en) 2000-08-17
EP0729842B1 (en) 2000-07-12
JPH09512506A (en) 1997-12-16
DE69609217T2 (en) 2000-11-30
WO1996026839A1 (en) 1996-09-06
EP0729842A2 (en) 1996-09-04

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