JPH01217382A - Separation claw device of copying machine - Google Patents

Separation claw device of copying machine

Info

Publication number
JPH01217382A
JPH01217382A JP4390388A JP4390388A JPH01217382A JP H01217382 A JPH01217382 A JP H01217382A JP 4390388 A JP4390388 A JP 4390388A JP 4390388 A JP4390388 A JP 4390388A JP H01217382 A JPH01217382 A JP H01217382A
Authority
JP
Japan
Prior art keywords
claw
transfer paper
toner
separation
separation claw
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
JP4390388A
Other languages
Japanese (ja)
Inventor
Tsugihito Yoshiyama
Original Assignee
Minolta Camera 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 Camera Co Ltd filed Critical Minolta Camera Co Ltd
Priority to JP4390388A priority Critical patent/JPH01217382A/en
Publication of JPH01217382A publication Critical patent/JPH01217382A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent adhesion of the unfixed toner on transfer paper to a separation claw for separating transfer paper from a photosensitive body by holding the separation claw at the same potential against a copying machine body or at the potential of the same polarity as that of developing toner.
CONSTITUTION: At the timing when the leading end of transfer paper P is about to reach the vicinity of a separation charger 8, a separation claw 11 is pressurized contact with a photosensitive drum 1 and the leading edge of the transfer paper P is separated from the drum 1. When the leading edge of the paper P passes the claw 11 by about 5cm, the pressure-contacting state of the claw 11 to the drum 1 is cancelled. At the time of the cancellation, a negative voltage E, the polarity of which is the same as that of the toner used for development by means of a developing device 6, is applied across the claw member 22 of the separation claw 11. Therefore, the toner is electrostatically repulsed by the claw member 22, even if the transfer paper P is attracted by the member 22. Therefore, the unfixed toner on the transfer paper P does not adhere to the claw member 22 and disturbance of the picture on the transfer paper P can be prevented.
COPYRIGHT: (C)1989,JPO&Japio
JP4390388A 1988-02-25 1988-02-25 Separation claw device of copying machine Pending JPH01217382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4390388A JPH01217382A (en) 1988-02-25 1988-02-25 Separation claw device of copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4390388A JPH01217382A (en) 1988-02-25 1988-02-25 Separation claw device of copying machine

Publications (1)

Publication Number Publication Date
JPH01217382A true JPH01217382A (en) 1989-08-30

Family

ID=12676671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4390388A Pending JPH01217382A (en) 1988-02-25 1988-02-25 Separation claw device of copying machine

Country Status (1)

Country Link
JP (1) JPH01217382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621513A (en) * 1994-12-23 1997-04-15 Xerox Corporation Electrically biased sheet stripping apparatus
US6141527A (en) * 1998-07-21 2000-10-31 Canon Kabushiki Kaisha Image forming apparatus having separating member with bias

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621513A (en) * 1994-12-23 1997-04-15 Xerox Corporation Electrically biased sheet stripping apparatus
US6141527A (en) * 1998-07-21 2000-10-31 Canon Kabushiki Kaisha Image forming apparatus having separating member with bias

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