JPS56123577A - Copying device - Google Patents

Copying device

Info

Publication number
JPS56123577A
JPS56123577A JP2706680A JP2706680A JPS56123577A JP S56123577 A JPS56123577 A JP S56123577A JP 2706680 A JP2706680 A JP 2706680A JP 2706680 A JP2706680 A JP 2706680A JP S56123577 A JPS56123577 A JP S56123577A
Authority
JP
Japan
Prior art keywords
copy
drum
toner
given
film
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
JP2706680A
Other languages
Japanese (ja)
Inventor
Takao Aoki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2706680A priority Critical patent/JPS56123577A/en
Publication of JPS56123577A publication Critical patent/JPS56123577A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
    • G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
    • G03G15/165—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides
    • G03G15/1655—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides comprising a rotatable holding member to which the second base is attached or attracted, e.g. screen transfer holding drum
    • G03G15/166—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides comprising a rotatable holding member to which the second base is attached or attracted, e.g. screen transfer holding drum with means for conditioning the holding member, e.g. cleaning

Abstract

PURPOSE:To prevent the toner dirt for the back side of copy paper, by providing the copy member holding means having the holding plane to hold the copy member and the means making the copy bias from the back of the copy member holding plane of the copy member holding means. CONSTITUTION:Polyester film 243 in 200mu thickness is wound on the notch of the metallic frame 242 of the copy drum 24. At copying, the toner charge and opposite polarity of corona discharge current are given to the back side of the film 243 with the copy charger 25. The copy drum 24 is turned by a given number of revolutions while gripping the tip of copy paper 20 at the gripper 241 and the image with required color number can be copied. At cleaning, the discharge corona current with the same polarity as the toner charge is given at the copy charger 25 and recopy is made on the surface of the toner sensing drum 1 offset for the surface of the film 243 for cleaning.
JP2706680A 1980-03-03 1980-03-03 Copying device Pending JPS56123577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2706680A JPS56123577A (en) 1980-03-03 1980-03-03 Copying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2706680A JPS56123577A (en) 1980-03-03 1980-03-03 Copying device

Publications (1)

Publication Number Publication Date
JPS56123577A true JPS56123577A (en) 1981-09-28

Family

ID=12210692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2706680A Pending JPS56123577A (en) 1980-03-03 1980-03-03 Copying device

Country Status (1)

Country Link
JP (1) JPS56123577A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181570A (en) * 1981-04-30 1982-11-09 Ricoh Co Ltd Recorder
JPS6186774A (en) * 1984-10-05 1986-05-02 Ricoh Co Ltd Transferring and separating device
EP0323226A2 (en) * 1987-12-28 1989-07-05 Canon Kabushiki Kaisha An image forming apparatus
US5337127A (en) * 1992-01-07 1994-08-09 Sharp Kabushiki Kaisha Image forming apparatus having biased transfer roller
US6864865B2 (en) 2000-11-01 2005-03-08 Oji Paper Co., Ltd. Display unit, display device, and method for manufacturing the display device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181570A (en) * 1981-04-30 1982-11-09 Ricoh Co Ltd Recorder
JPS6186774A (en) * 1984-10-05 1986-05-02 Ricoh Co Ltd Transferring and separating device
EP0323226A2 (en) * 1987-12-28 1989-07-05 Canon Kabushiki Kaisha An image forming apparatus
US5132738A (en) * 1987-12-28 1992-07-21 Canon Kabushiki Kaisha Image forming apparatus with cleaning mechanism for charging electrode
US5337127A (en) * 1992-01-07 1994-08-09 Sharp Kabushiki Kaisha Image forming apparatus having biased transfer roller
US6864865B2 (en) 2000-11-01 2005-03-08 Oji Paper Co., Ltd. Display unit, display device, and method for manufacturing the display device

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