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

Entwicklungseinheit und Bilderzeugungsgerät mit einer solchen Entwicklungseinheit Download PDF

Info

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)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing 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
JP46902/89 1989-02-28
JP1046902A JPH02226279A (ja) 1989-02-28 1989-02-28 印刷装置の現像器

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0385865A2 (de) 1990-09-05
JPH02226279A (ja) 1990-09-07

Similar Documents

Publication Publication Date Title
EP0917014A3 (de) Entwicklungsgerät und Arbeitseinheit
CA2025913A1 (en) Development apparatus
JPH0490568A (ja) 現像装置
EP0385865A3 (de) Entwicklungseinheit und Bilderzeugungsgerät mit einer solchen Entwicklungseinheit
US4601258A (en) Electrophotographic developing device having toner removing means
JPS55149962A (en) Magnetic brush type developing device
EP0691586A1 (de) Entwicklungsvorrichtung mit verstellbarer Breite der Entwicklungskontaktzone
US5930554A (en) Apparatus and method for non-interactive magnetic brush development
JPH0446365A (ja) 現像装置
JPH09265238A (ja) 現像装置
JPH0619323A (ja) 現像装置
DE3468755D1 (en) Development apparatus for latent magnetic images
US20040126146A1 (en) Apparatus and method for non-interactive magnetic brush development
JPH02163779A (ja) 転写装置
JPS6021074A (ja) 磁気ブラシ現像装置
JPS5614265A (en) Electrostatic latent image developing device
JPS6385654A (ja) 現像装置
JP2000122415A (ja) 現像装置
JPS6090368A (ja) 現像剤搬送装置
JPS6459366A (en) Image forming device provided with plural developing devices
JPS6073653A (ja) 静電潜像現像装置
JPS5647051A (en) Developing method in multiple sheet copying method
JPS5926022B2 (ja) 現像方法およびその装置
JPH0777873A (ja) 画像形成装置
JPS62279373A (ja) 電子写真現像装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19911210

17Q First examination report despatched

Effective date: 19930304

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19940328