DE69433430T2 - Charging roller for an image forming device - Google Patents

Charging roller for an image forming device Download PDF

Info

Publication number
DE69433430T2
DE69433430T2 DE1994633430 DE69433430T DE69433430T2 DE 69433430 T2 DE69433430 T2 DE 69433430T2 DE 1994633430 DE1994633430 DE 1994633430 DE 69433430 T DE69433430 T DE 69433430T DE 69433430 T2 DE69433430 T2 DE 69433430T2
Authority
DE
Germany
Prior art keywords
image forming
forming device
charging roller
charging
roller
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 - Lifetime
Application number
DE1994633430
Other languages
German (de)
Other versions
DE69433430D1 (en
Inventor
Kazuo Nojima
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Application granted granted Critical
Publication of DE69433430D1 publication Critical patent/DE69433430D1/en
Publication of DE69433430T2 publication Critical patent/DE69433430T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
    • G03G15/0233—Structure, details of the charging member, e.g. chemical composition, surface properties
DE1994633430 1993-01-13 1994-01-13 Charging roller for an image forming device Expired - Lifetime DE69433430T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP367593 1993-01-13
JP27059093A JPH06266206A (en) 1993-01-13 1993-10-28 Charging roller

Publications (2)

Publication Number Publication Date
DE69433430D1 DE69433430D1 (en) 2004-01-29
DE69433430T2 true DE69433430T2 (en) 2004-10-07

Family

ID=26337309

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1994633430 Expired - Lifetime DE69433430T2 (en) 1993-01-13 1994-01-13 Charging roller for an image forming device
DE1994617931 Expired - Lifetime DE69417931T2 (en) 1993-01-13 1994-01-13 Charging roller for an imaging device

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1994617931 Expired - Lifetime DE69417931T2 (en) 1993-01-13 1994-01-13 Charging roller for an imaging device

Country Status (4)

Country Link
EP (2) EP0606907B1 (en)
JP (1) JPH06266206A (en)
DE (2) DE69433430T2 (en)
ES (2) ES2208783T3 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5610795A (en) * 1994-08-01 1997-03-11 Xerox Corporation Self biasing charging member
DE69525214T2 (en) 1994-10-18 2002-07-11 Canon Kk Method for restoring a charging element
JP3346970B2 (en) * 1994-11-22 2002-11-18 日本ゼオン株式会社 Rubber roll, rubber composition, and image forming apparatus
US5625858A (en) * 1995-01-18 1997-04-29 Canon Kabushiki Kaisha Contact charging member, process for producing same and electrophotographic apparatus using same
JP3028057B2 (en) * 1996-02-21 2000-04-04 富士ゼロックス株式会社 Charging member
US5849399A (en) * 1996-04-19 1998-12-15 Xerox Corporation Bias transfer members with fluorinated carbon filled fluoroelastomer outer layer
US6141516A (en) * 1996-06-28 2000-10-31 Xerox Corporation Fluorinated carbon filled fluoroelastomer outer layer
JP3598718B2 (en) * 1997-03-25 2004-12-08 東海ゴム工業株式会社 Semiconductive roll
US6558781B1 (en) 1999-07-12 2003-05-06 Canon Kabushiki Kaisha Conductive roller, process cartridge and image forming apparatus
US6620476B2 (en) 1999-08-13 2003-09-16 Xerox Corporation Nonbleeding fluorinated carbon and zinc oxide filled layer for bias charging member
US6203855B1 (en) 1999-08-13 2001-03-20 Xerox Corporation Process for preparing nonbleeding fluorinated carbon and zinc oxide filler layer for bias charging member
EP1156388A1 (en) 2000-05-16 2001-11-21 Hokushin Corporation Charge-imparting member
US8483591B2 (en) 2009-08-27 2013-07-09 Xerox Corporation Bias charging overcoat
JP5471176B2 (en) * 2009-08-28 2014-04-16 富士ゼロックス株式会社 Composition for conductive roller, conductive roller, charging device, image forming apparatus and process cartridge, and method for manufacturing conductive roller
US8649704B2 (en) 2009-11-20 2014-02-11 Xerox Corporation Bias charging overcoat
US8768219B2 (en) 2009-11-20 2014-07-01 Xerox Corporation Bias charging overcoat
US9442451B2 (en) 2014-11-28 2016-09-13 Canon Kabushiki Kaisha Electroconductive member for electrophotography, process cartridge, and electrophotographic image-forming apparatus
US10416588B2 (en) 2016-10-31 2019-09-17 Canon Kabushiki Kaisha Charging member, process cartridge, electrophotographic image forming apparatus, and method for manufacturing charging member

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727453A (en) * 1986-12-22 1988-02-23 Xerox Corporation Alternating current inductive charging of a photoreceptor
JP2575209B2 (en) * 1989-07-05 1997-01-22 キヤノン株式会社 Electrophotographic charging member and electrophotographic apparatus
JPH0789249B2 (en) * 1989-09-14 1995-09-27 キヤノン株式会社 Image forming device
JP2765660B2 (en) * 1990-07-20 1998-06-18 キヤノン株式会社 Charging member
JP3056273B2 (en) * 1991-03-28 2000-06-26 キヤノン株式会社 Charging member
JP3053246B2 (en) * 1991-04-10 2000-06-19 株式会社リコー Semi-conductive roller
US5270768A (en) * 1991-04-24 1993-12-14 Canon Kabushiki Kaisha Charging member containing reduced titanium oxide and device using same

Also Published As

Publication number Publication date
EP0810486A2 (en) 1997-12-03
DE69417931D1 (en) 1999-05-27
EP0606907B1 (en) 1999-04-21
EP0606907A1 (en) 1994-07-20
JPH06266206A (en) 1994-09-22
EP0810486B1 (en) 2003-12-17
DE69417931T2 (en) 1999-09-16
EP0810486A3 (en) 1998-04-15
DE69433430D1 (en) 2004-01-29
ES2208783T3 (en) 2004-06-16
ES2131593T3 (en) 1999-08-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition