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HK1011845A1 - Charging device, process unit and image forming apparatus having a charging device - Google Patents

Charging device, process unit and image forming apparatus having a charging device

Info

Publication number
HK1011845A1
HK1011845A1 HK98112957A HK98112957A HK1011845A1 HK 1011845 A1 HK1011845 A1 HK 1011845A1 HK 98112957 A HK98112957 A HK 98112957A HK 98112957 A HK98112957 A HK 98112957A HK 1011845 A1 HK1011845 A1 HK 1011845A1
Authority
HK
Hong Kong
Prior art keywords
charging device
image forming
forming apparatus
process unit
charging
Prior art date
Application number
HK98112957A
Other languages
English (en)
Inventor
Kazushige Sakurai
Hiroki Kisu
Masaharu Ohkubo
Michihito Yamazuki
Eriko Asano
Original Assignee
Canon Kk
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 Kk filed Critical Canon Kk
Publication of HK1011845A1 publication Critical patent/HK1011845A1/xx

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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
    • G03G2221/1609—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element protective arrangements for preventing damage
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Electrophotography Configuration And Component (AREA)
HK98112957A 1991-03-20 1998-12-08 Charging device, process unit and image forming apparatus having a charging device HK1011845A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3056859A JP2899123B2 (ja) 1991-03-20 1991-03-20 帯電部材、帯電装置、この帯電装置を備えた画像形成装置及びこの画像形成装置に着脱可能なプロセスユニット

Publications (1)

Publication Number Publication Date
HK1011845A1 true HK1011845A1 (en) 1999-07-16

Family

ID=13039143

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98112957A HK1011845A1 (en) 1991-03-20 1998-12-08 Charging device, process unit and image forming apparatus having a charging device

Country Status (5)

Country Link
US (1) US5541711A (ja)
EP (1) EP0504877B1 (ja)
JP (1) JP2899123B2 (ja)
DE (1) DE69233089T2 (ja)
HK (1) HK1011845A1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590912A3 (en) * 1992-09-28 1995-04-19 Mita Industrial Co Ltd Contact loading method of the surface of a photosensitive material.
JPH0792775A (ja) * 1993-04-28 1995-04-07 Canon Inc 帯電部材、帯電装置、プロセスカートリッジ及び画像形成装置
US5914742A (en) * 1996-11-27 1999-06-22 Lexmark International, Inc. Primary charge roller with protruding end
JP3473742B2 (ja) * 1998-02-03 2003-12-08 シャープ株式会社 電荷供給装置および画像形成装置
DE69929667T2 (de) * 1998-12-28 2006-08-10 Canon K.K. Bildentwicklungsgerät, Arbeitseinheit, elektrophotographisches Bilderzeugungsgerät und Entwicklungsrahmeneinheit
JP3363873B2 (ja) 1999-07-13 2003-01-08 キヤノン株式会社 現像剤量逐次表示方法及び電子写真画像形成装置
JP2001051490A (ja) 1999-08-06 2001-02-23 Canon Inc 現像装置、プロセスカートリッジ及び電子写真画像形成装置
US6912366B1 (en) * 1999-08-31 2005-06-28 Canon Kabushiki Kaisha Image forming apparatus comprising means for detecting an amount of developer contained in a developer container, a memory for storing the amount detected by the detecting means, and control means for updating the information stored in the memory
JP2001194890A (ja) 1999-10-27 2001-07-19 Canon Inc 現像剤量表示方法及び電子写真画像形成装置
JP2001255786A (ja) 2000-01-07 2001-09-21 Canon Inc 電子写真画像形成装置
JP2002072573A (ja) 2000-08-23 2002-03-12 Canon Inc 画像形成装置、カートリッジ、画像形成システム、および記憶媒体
JP2004038034A (ja) * 2002-07-05 2004-02-05 Ricoh Co Ltd 帯電装置、プロセスカートリッジ、画像形成装置および複写機
JP7034815B2 (ja) * 2017-04-27 2022-03-14 キヤノン株式会社 帯電部材、電子写真プロセスカートリッジ及び電子写真画像形成装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023874A (ja) * 1983-07-19 1985-02-06 Canon Inc クリ−ニング装置
JPS60147756A (ja) * 1984-01-13 1985-08-03 Toshiba Corp 帯電装置
US4823689A (en) * 1986-03-18 1989-04-25 Canon Kabushiki Kaisha Elastic roller with internal openings for use with image forming apparatus
US4851960A (en) * 1986-12-15 1989-07-25 Canon Kabushiki Kaisha Charging device
JPH07113792B2 (ja) * 1987-02-26 1995-12-06 キヤノン株式会社 接触帯電装置
EP0308185B1 (en) * 1987-09-14 1993-11-24 Canon Kabushiki Kaisha A charging device
CN1038277C (zh) * 1987-12-28 1998-05-06 佳能公司 成象设备
JP2607109B2 (ja) * 1988-01-11 1997-05-07 キヤノン株式会社 帯電装置
JPH0789249B2 (ja) * 1989-09-14 1995-09-27 キヤノン株式会社 画像形成装置
JPH03156476A (ja) * 1989-11-15 1991-07-04 Canon Inc 画像形成装置の帯電装置

Also Published As

Publication number Publication date
EP0504877B1 (en) 2003-06-04
US5541711A (en) 1996-07-30
DE69233089D1 (de) 2003-07-10
JP2899123B2 (ja) 1999-06-02
DE69233089T2 (de) 2004-04-29
JPH04291374A (ja) 1992-10-15
EP0504877A2 (en) 1992-09-23
EP0504877A3 (en) 1993-07-07

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100319