JPS648155A - Sheet transfer device in image forming apparatus - Google Patents

Sheet transfer device in image forming apparatus

Info

Publication number
JPS648155A
JPS648155A JP62163220A JP16322087A JPS648155A JP S648155 A JPS648155 A JP S648155A JP 62163220 A JP62163220 A JP 62163220A JP 16322087 A JP16322087 A JP 16322087A JP S648155 A JPS648155 A JP S648155A
Authority
JP
Japan
Prior art keywords
sheet
roller
rollers
feed
peripheral speed
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
JP62163220A
Other languages
Japanese (ja)
Other versions
JPH0739298B2 (en
Inventor
Toshinaka Yamanaka
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP62163220A priority Critical patent/JPH0739298B2/en
Publication of JPS648155A publication Critical patent/JPS648155A/en
Publication of JPH0739298B2 publication Critical patent/JPH0739298B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

PURPOSE:To restrain a passing sheet from creasing, by drivably and rotatably providing a pair of upper and lower sheet feed rollers having sheet feed surfaces with different friction coefficients, and by setting the peripheral speed of one of the rollers which has a lower friction coefficient, to a value slightly higher than that of the other. CONSTITUTION:The rotational speeds of first and second rollers 24, 25 are set such that the peripheral speed V2 of the second roller 25 having a sheet feed surfaces S2 with a higher friction coefficient to a predetermined paper feed speed, and the peripheral speed V1 of the first roller 24 having a sheet feed surface S1 with a lower friction coefficient is slightly higher than that of the second roller 25. Accordingly, since the paper feed speed of a sheet depends upon the peripheral speed V2 of the second roller 25 having the higher frictional coefficient, the first roller 24 rotates slipping on the surface of the sheet by the difference between the peripheral speeds of both rollers so as to feed the sheet in such a condition that a stretching force is applied onto the sheet at a part slipping over the roller. Accordingly, it is possible to eliminate the cause of generation of creases in the sheet itself, thereby it is possible to restrain the sheet from creasing during passing between both rollers 24, 25.
JP62163220A 1987-06-30 1987-06-30 Sheet conveying device in image forming apparatus Expired - Lifetime JPH0739298B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62163220A JPH0739298B2 (en) 1987-06-30 1987-06-30 Sheet conveying device in image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62163220A JPH0739298B2 (en) 1987-06-30 1987-06-30 Sheet conveying device in image forming apparatus

Publications (2)

Publication Number Publication Date
JPS648155A true JPS648155A (en) 1989-01-12
JPH0739298B2 JPH0739298B2 (en) 1995-05-01

Family

ID=15769594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62163220A Expired - Lifetime JPH0739298B2 (en) 1987-06-30 1987-06-30 Sheet conveying device in image forming apparatus

Country Status (1)

Country Link
JP (1) JPH0739298B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201764A (en) * 1986-02-28 1987-09-05 Mita Ind Co Ltd Image-transferred sheet conveying device for copying machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201764A (en) * 1986-02-28 1987-09-05 Mita Ind Co Ltd Image-transferred sheet conveying device for copying machine

Also Published As

Publication number Publication date
JPH0739298B2 (en) 1995-05-01

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