EP0385865A3 - Entwicklungseinheit und Bilderzeugungsgerät mit einer solchen Entwicklungseinheit - Google Patents

Entwicklungseinheit und Bilderzeugungsgerät mit einer solchen Entwicklungseinheit Download PDF

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Publication number
EP0385865A3
EP0385865A3 EP19900400564 EP90400564A EP0385865A3 EP 0385865 A3 EP0385865 A3 EP 0385865A3 EP 19900400564 EP19900400564 EP 19900400564 EP 90400564 A EP90400564 A EP 90400564A EP 0385865 A3 EP0385865 A3 EP 0385865A3
Authority
EP
European Patent Office
Prior art keywords
developer
developing unit
vicinity
peripheral surface
outer sleeve
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.)
Ceased
Application number
EP19900400564
Other languages
English (en)
French (fr)
Other versions
EP0385865A2 (de
Inventor
Makoto Koshi
Hiroki Oba
Masayuki Hida
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of EP0385865A2 publication Critical patent/EP0385865A2/de
Publication of EP0385865A3 publication Critical patent/EP0385865A3/de
Ceased 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
EP19900400564 1989-02-28 1990-02-28 Entwicklungseinheit und Bilderzeugungsgerät mit einer solchen Entwicklungseinheit Ceased EP0385865A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1046902A JPH02226279A (ja) 1989-02-28 1989-02-28 印刷装置の現像器
JP46902/89 1989-02-28

Publications (2)

Publication Number Publication Date
EP0385865A2 EP0385865A2 (de) 1990-09-05
EP0385865A3 true EP0385865A3 (de) 1991-07-31

Family

ID=12760293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900400564 Ceased EP0385865A3 (de) 1989-02-28 1990-02-28 Entwicklungseinheit und Bilderzeugungsgerät mit einer solchen Entwicklungseinheit

Country Status (2)

Country Link
EP (1) EP0385865A3 (de)
JP (1) JPH02226279A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2901197B2 (ja) * 1990-10-24 1999-06-07 日立金属株式会社 現像装置
US5576814A (en) * 1994-02-08 1996-11-19 Brother Kogyo Kabushiki Kaisha Developing unit using toner having a magnetic shield between the agitation chamber and a developing roller
JP3044997B2 (ja) * 1994-02-16 2000-05-22 ブラザー工業株式会社 画像形成装置における現像装置
US6055401A (en) * 1995-09-12 2000-04-25 Fujitsu Limited Electrophotographic image-forming apparatus having developing device which includes a plurality of developing rollers
US5630198A (en) * 1995-12-28 1997-05-13 Brother Kogyo Kabushiki Kaisha Toner fillable cartridge having protrusions engageable with a development case shutter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139020A1 (de) * 1983-04-01 1985-05-02 Hitachi, Ltd. Elektrophotographisches verfahren
US4606990A (en) * 1982-02-19 1986-08-19 Canon Kabushiki Kaisha Method for forming a thin layer of developer
EP0219233A2 (de) * 1985-09-17 1987-04-22 Canon Kabushiki Kaisha Entwicklungsverfahren und -vorrichtung
EP0226454A2 (de) * 1985-12-10 1987-06-24 Canon Kabushiki Kaisha Vorrichtung zum Transport von magnetischem Entwickler
US4676192A (en) * 1983-09-30 1987-06-30 Minolta Camera Kabushiki Kaisha Dry process developing apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042767A (ja) * 1983-08-18 1985-03-07 Canon Inc 画像形成方法
JPS61273564A (ja) * 1985-05-30 1986-12-03 Nec Corp キヤリアプロテクタ−
JPS63177757A (ja) * 1987-01-19 1988-07-21 Morinaga & Co Ltd 多重球状中空焼菓子の製造法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606990A (en) * 1982-02-19 1986-08-19 Canon Kabushiki Kaisha Method for forming a thin layer of developer
EP0139020A1 (de) * 1983-04-01 1985-05-02 Hitachi, Ltd. Elektrophotographisches verfahren
US4676192A (en) * 1983-09-30 1987-06-30 Minolta Camera Kabushiki Kaisha Dry process developing apparatus
EP0219233A2 (de) * 1985-09-17 1987-04-22 Canon Kabushiki Kaisha Entwicklungsverfahren und -vorrichtung
EP0226454A2 (de) * 1985-12-10 1987-06-24 Canon Kabushiki Kaisha Vorrichtung zum Transport von magnetischem Entwickler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 167 (P-372)(1890) 12 July 1985, & JP-A-60 042767 (CANON K.K.) 7 March 1985, *

Also Published As

Publication number Publication date
JPH02226279A (ja) 1990-09-07
EP0385865A2 (de) 1990-09-05

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