JPH0193776A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPH0193776A
JPH0193776A JP25071787A JP25071787A JPH0193776A JP H0193776 A JPH0193776 A JP H0193776A JP 25071787 A JP25071787 A JP 25071787A JP 25071787 A JP25071787 A JP 25071787A JP H0193776 A JPH0193776 A JP H0193776A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
toner
prevent
guide plates
transfer material
bias
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
JP25071787A
Inventor
Yoshihiro Saito
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

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/14Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16Apparatus 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
    • G03G15/163Apparatus 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
    • G03G15/1635Apparatus 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
    • G03G15/165Arrangements for supporting or transporting the second base in the transfer area, e.g. guides

Abstract

PURPOSE:To prevent toner from sticking to a guide member to prevent staining of a transfer material by applying a bias having the same polarity as that of the toner to the guide member, which guides the transfer material to a photosensitive body, in accordance with the electrostatic charging characteristic of the used toner. CONSTITUTION:A toner image formed in a developing part passes the position of a pretransfer charger 6 and reaches a transferring and separating charger 8. In this position, the toner image is brought into contact with the transfer material supplied by a guide member 7 consisting of guide plates 7a and 7b and is transferred to the transfer material. In case of the negative mode, negatively electrified toner is put on a photosensitive body 1. Consequently, a negative bias is applied to guide plates 7a and 7b from a bias applying circuit B to prevent the toner from being electrostatically attracted to guide plates to disturb the image or prevent the floating toner from being stuck to guide plates 7. In case of the positive mode, a positive bias is applied to guide plates 7a and 7b to prevent sticking of positively electrified toner.
JP25071787A 1987-10-06 1987-10-06 Image forming device Pending JPH0193776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25071787A JPH0193776A (en) 1987-10-06 1987-10-06 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25071787A JPH0193776A (en) 1987-10-06 1987-10-06 Image forming device

Publications (1)

Publication Number Publication Date
JPH0193776A true true JPH0193776A (en) 1989-04-12

Family

ID=17212003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25071787A Pending JPH0193776A (en) 1987-10-06 1987-10-06 Image forming device

Country Status (1)

Country Link
JP (1) JPH0193776A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896257A1 (en) * 1997-08-04 1999-02-10 Kabushiki Kaisha Toshiba Image forming apparatus
US7910338B2 (en) 2005-04-12 2011-03-22 E. I. Du Pont De Nemours And Company Integration of alternative feedstreams for biomass treatment and utilization

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896257A1 (en) * 1997-08-04 1999-02-10 Kabushiki Kaisha Toshiba Image forming apparatus
US6205300B1 (en) 1997-08-04 2001-03-20 Kabushiki Kaisha Toshiba Image forming apparatus for forming a more uniform image
US7910338B2 (en) 2005-04-12 2011-03-22 E. I. Du Pont De Nemours And Company Integration of alternative feedstreams for biomass treatment and utilization
US7932063B2 (en) 2005-04-12 2011-04-26 E. I. Du Pont De Nemours And Company Treatment of biomass to obtain fermentable sugars

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