DE69020238D1 - Entwicklungsverfahren mit ausgezeichneter Bildwiedergabe. - Google Patents

Entwicklungsverfahren mit ausgezeichneter Bildwiedergabe.

Info

Publication number
DE69020238D1
DE69020238D1 DE69020238T DE69020238T DE69020238D1 DE 69020238 D1 DE69020238 D1 DE 69020238D1 DE 69020238 T DE69020238 T DE 69020238T DE 69020238 T DE69020238 T DE 69020238T DE 69020238 D1 DE69020238 D1 DE 69020238D1
Authority
DE
Germany
Prior art keywords
development process
image reproduction
excellent image
reproduction
development
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
DE69020238T
Other languages
English (en)
Other versions
DE69020238T2 (de
Inventor
Tsutomu Uezono
Akihiro Watanabe
Mitsushi Kuroki
Toshio Nishino
Shoji Tomita
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial 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
Priority claimed from JP1107330A external-priority patent/JPH0727298B2/ja
Application filed by Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Publication of DE69020238D1 publication Critical patent/DE69020238D1/de
Application granted granted Critical
Publication of DE69020238T2 publication Critical patent/DE69020238T2/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
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • G03G9/1085—Ferrite carrier, e.g. magnetite with non-ferrous metal oxide, e.g. MgO-Fe2O3

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
DE69020238T 1989-04-28 1990-04-27 Entwicklungsverfahren mit ausgezeichneter Bildwiedergabe. Expired - Fee Related DE69020238T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1107330A JPH0727298B2 (ja) 1989-04-28 1989-04-28 文字の再現性に優れた現像方法
JP10733189 1989-04-28
JP13164489 1989-05-26

Publications (2)

Publication Number Publication Date
DE69020238D1 true DE69020238D1 (de) 1995-07-27
DE69020238T2 DE69020238T2 (de) 1995-11-02

Family

ID=27310955

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69028931T Expired - Fee Related DE69028931T2 (de) 1989-04-28 1990-04-27 Entwicklungsverfahren mit ausgezeichneter Bildwiedergabe
DE69020238T Expired - Fee Related DE69020238T2 (de) 1989-04-28 1990-04-27 Entwicklungsverfahren mit ausgezeichneter Bildwiedergabe.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69028931T Expired - Fee Related DE69028931T2 (de) 1989-04-28 1990-04-27 Entwicklungsverfahren mit ausgezeichneter Bildwiedergabe

Country Status (3)

Country Link
US (1) US5173388A (de)
EP (2) EP0396359B1 (de)
DE (2) DE69028931T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663788A (en) * 1992-04-02 1997-09-02 Ricoh Company, Ltd. Efficiently removable developing toner in an electrostatic image forming apparatus
US5870656A (en) * 1996-12-04 1999-02-09 Canon Kabushiki Kaisha Image forming apparatus for effecting development and cleaning by using magnet brush
JP4012676B2 (ja) * 2000-09-07 2007-11-21 株式会社リコー 現像装置及び画像形成装置
JP4084123B2 (ja) * 2002-08-13 2008-04-30 株式会社リコー 現像装置の特性値の規定方法
JP2007156334A (ja) * 2005-12-08 2007-06-21 Ricoh Co Ltd 現像装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540645A (en) * 1983-01-31 1985-09-10 Mita Industrial Co Ltd Magnetic brush development method
JPS59172660A (ja) * 1983-03-23 1984-09-29 Mita Ind Co Ltd フエライトキヤリヤを用いる磁気ブラシ現像法
EP0265942B1 (de) * 1983-04-12 1992-08-26 Mita Industrial Co. Ltd. Elektrostatisches Kopiergerät
US4610531A (en) * 1983-09-05 1986-09-09 Canon Kabushiki Kaisha Developing method and apparatus
JPS6136774A (ja) * 1984-07-30 1986-02-21 Mita Ind Co Ltd 現像装置
JPS61118767A (ja) * 1984-11-15 1986-06-06 Konishiroku Photo Ind Co Ltd 画像形成方法
DE3577361D1 (de) * 1984-11-27 1990-05-31 Mita Industrial Co Ltd Magnetbuerstenentwicklungsverfahren.
US4702987A (en) * 1985-12-28 1987-10-27 Konishiroku Photo Industry Co., Ltd. Developing method for electrophotography
JPS63208867A (ja) * 1987-02-26 1988-08-30 Minolta Camera Co Ltd 現像方法
US4999272A (en) * 1988-08-31 1991-03-12 Canon Kabushiki Kaisha Electrophotographic analog and digital imaging and developing using magnetic toner
US4949127A (en) * 1988-11-28 1990-08-14 Mita Industrial Co., Ltd. Magnetic brush development process

Also Published As

Publication number Publication date
EP0396359A3 (de) 1992-06-17
US5173388A (en) 1992-12-22
EP0396359B1 (de) 1995-06-21
EP0589495A2 (de) 1994-03-30
DE69028931T2 (de) 1997-02-13
EP0396359A2 (de) 1990-11-07
EP0589495A3 (de) 1995-05-10
EP0589495B1 (de) 1996-10-16
DE69020238T2 (de) 1995-11-02
DE69028931D1 (de) 1996-11-21

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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