JPS6443424A - Image forming apparatus - Google Patents

Image forming apparatus

Info

Publication number
JPS6443424A
JPS6443424A JP19847887A JP19847887A JPS6443424A JP S6443424 A JPS6443424 A JP S6443424A JP 19847887 A JP19847887 A JP 19847887A JP 19847887 A JP19847887 A JP 19847887A JP S6443424 A JPS6443424 A JP S6443424A
Authority
JP
Japan
Prior art keywords
sheet
transport rollers
rollers
pair
transport
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.)
Pending
Application number
JP19847887A
Other languages
Japanese (ja)
Inventor
Yoshihiko Hatta
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.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP19847887A priority Critical patent/JPS6443424A/en
Priority to US07/184,502 priority patent/US4928150A/en
Publication of JPS6443424A publication Critical patent/JPS6443424A/en
Pending legal-status Critical Current

Links

Landscapes

  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)

Abstract

PURPOSE:To prevent insertion error of a sheet by disposing a pair of switchback transport rollers capable of rotating normal and reverse directions in a sheet transport passage opened to the outside in a re-feed device and rotating the rollers in the discharge direction except re-feed operation. CONSTITUTION:In case of a both-sided copying mode, a sheet, one side of which is copied by a photoreceptor drum 10, a transfer charger 15 and so on, is transported between guide plates 81, 82 by a pair of normally rotating transport rollers 75 through a pair of discharge rollers 44 and a pair of transport rollers 74 and once stopped in the clamping state. Subsequently, the sheet is switchback- transported to a horizontal transport unit 60 by reversion of the paired transport rollers 75 to make a copy on the back side of the sheet. The paired transport rollers 75 are rotated in the direction of discharging a sheet to an opening 83 except for the case of re-feeding the sheet through the horizontal transport unit 60. Accordingly, even if a sheet enters in error at the opening portion 83 between the guide plates 81, 82, the sheet is discharged to the outside by the paired switchback transport rollers 75, so that an error in feeding a sheet to a work portion can be surely prevented.
JP19847887A 1987-04-23 1987-08-07 Image forming apparatus Pending JPS6443424A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP19847887A JPS6443424A (en) 1987-08-07 1987-08-07 Image forming apparatus
US07/184,502 US4928150A (en) 1987-04-23 1988-04-21 Copy apparatus having plural copy sheet discharge trays for different sized copy sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19847887A JPS6443424A (en) 1987-08-07 1987-08-07 Image forming apparatus

Publications (1)

Publication Number Publication Date
JPS6443424A true JPS6443424A (en) 1989-02-15

Family

ID=16391776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19847887A Pending JPS6443424A (en) 1987-04-23 1987-08-07 Image forming apparatus

Country Status (1)

Country Link
JP (1) JPS6443424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7080601B2 (en) 2003-12-17 2006-07-25 Hideyuki Hayashi Yarn feeder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7080601B2 (en) 2003-12-17 2006-07-25 Hideyuki Hayashi Yarn feeder

Similar Documents

Publication Publication Date Title
JPS63306141A (en) Picture image forming device
JPS5992861A (en) Both-side copying machine
JPS6443424A (en) Image forming apparatus
JPS62166365A (en) Automatic both-surface copying machine
US4910552A (en) Automatic document feeder for electrophotographic copying machine with a drum for supporting a document
JPH0254545B2 (en)
JPS57204062A (en) Picture recording device
JPS6348586Y2 (en)
JPS56126850A (en) Copying device having automatical original feed mechanism
JPS6210667A (en) Automatic both sides copying machine
JPS6265862A (en) Automatic original feeding device
JPS6221665A (en) Document feed device
JPS63106253A (en) Jam processing method for copying machine
JPH01251040A (en) Image forming device
JPS6487449A (en) Recording device
JPS63306463A (en) Carrying device
JPH03196055A (en) Automatic document feeder
JPS594541A (en) Copying device
JPS6173965A (en) Both-surface copying machine
JPS6443434A (en) Image forming apparatus
JPS62126056A (en) Document transporting device
JPS628925A (en) Document conveyor
JPS629364A (en) Automatic both-surface copying machine
JPS6162065A (en) Copying machine provided with automatic original carrying device and both-side copying function
JPS61262755A (en) Automatic both-surface copying machine