DE3879520D1 - Bilderzeugungseinrichtung mit mehreren entwicklervorrichtungen. - Google Patents

Bilderzeugungseinrichtung mit mehreren entwicklervorrichtungen.

Info

Publication number
DE3879520D1
DE3879520D1 DE8888400097T DE3879520T DE3879520D1 DE 3879520 D1 DE3879520 D1 DE 3879520D1 DE 8888400097 T DE8888400097 T DE 8888400097T DE 3879520 T DE3879520 T DE 3879520T DE 3879520 D1 DE3879520 D1 DE 3879520D1
Authority
DE
Germany
Prior art keywords
generating device
image generating
developer devices
several developer
several
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.)
Expired - Fee Related
Application number
DE8888400097T
Other languages
English (en)
Other versions
DE3879520T2 (de
Inventor
Tsuyoshi Kunishi
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
Priority claimed from JP62009449A external-priority patent/JPH0658559B2/ja
Priority claimed from JP62009448A external-priority patent/JPH0679178B2/ja
Priority claimed from JP62009451A external-priority patent/JPH0679179B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE3879520D1 publication Critical patent/DE3879520D1/de
Publication of DE3879520T2 publication Critical patent/DE3879520T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/01—Electrographic processes using a charge pattern for multicoloured copies
    • G03G13/013—Electrographic processes using a charge pattern for multicoloured copies characterised by the developing step, e.g. the properties of the colour developers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
DE88400097T 1987-01-19 1988-01-18 Bilderzeugungseinrichtung mit mehreren Entwicklervorrichtungen. Expired - Fee Related DE3879520T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62009449A JPH0658559B2 (ja) 1987-01-19 1987-01-19 複数現像装置を備えた画像形成装置
JP62009448A JPH0679178B2 (ja) 1987-01-19 1987-01-19 複数現像装置を備えた画像形成装置
JP62009451A JPH0679179B2 (ja) 1987-01-19 1987-01-19 複数現像装置を備えた画像形成装置

Publications (2)

Publication Number Publication Date
DE3879520D1 true DE3879520D1 (de) 1993-04-29
DE3879520T2 DE3879520T2 (de) 1993-09-30

Family

ID=27278485

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88400097T Expired - Fee Related DE3879520T2 (de) 1987-01-19 1988-01-18 Bilderzeugungseinrichtung mit mehreren Entwicklervorrichtungen.

Country Status (3)

Country Link
US (1) US4992831A (de)
EP (1) EP0277063B1 (de)
DE (1) DE3879520T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122843A (en) * 1990-02-15 1992-06-16 Minolta Camera Kabushiki Kaisha Image forming apparatus having developing devices which use different size toner particles
JP3029648B2 (ja) * 1990-07-31 2000-04-04 株式会社東芝 画像形成装置
DE69329181T2 (de) * 1992-12-18 2001-03-29 Canon Kk Bilderzeugungsgerät
US5523849A (en) * 1993-06-17 1996-06-04 Eastman Kodak Company Optimizing edge enhancement for electrographic color prints
US5790917A (en) * 1995-10-30 1998-08-04 Canon Kabushiki Kaisha Developing device having a residual toner amount discrimination feature and image forming apparatus using same
US6792218B2 (en) 2002-06-11 2004-09-14 Lexmark International, Inc. Method of compensating for low toner consumption
JP2010102325A (ja) * 2008-09-25 2010-05-06 Oki Data Corp 画像形成装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1070578A (en) * 1962-11-27 1967-06-01 Tokyo Shibaura Electric Co Toner image transfer system
JPS53113549A (en) * 1977-03-15 1978-10-04 Fuji Photo Film Co Ltd Marking device
US4251154A (en) * 1979-04-09 1981-02-17 Eastman Kodak Company Electrophotographic color copier
JPS57188061A (en) * 1981-05-15 1982-11-18 Hitachi Ltd Electrophotographing device
JPS59101657A (ja) * 1982-12-02 1984-06-12 Minolta Camera Co Ltd ２色画像形成方法
US4609280A (en) * 1983-10-31 1986-09-02 International Business Machines Corporation Xerographic apparatus and process with backside photoconductor imaging

Also Published As

Publication number Publication date
DE3879520T2 (de) 1993-09-30
EP0277063A1 (de) 1988-08-03
US4992831A (en) 1991-02-12
EP0277063B1 (de) 1993-03-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee