DE68915906D1 - Bildaufzeichnungsgerät. - Google Patents

Bildaufzeichnungsgerät.

Info

Publication number: DE68915906D1
Authority: DE; Germany
Prior art keywords: image recorder; recorder; image
Prior art date: 1988-08-31
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

DE68915906T

Other languages

English (en)

Other versions

DE68915906T2 (de

Inventor

Tatsuya Tada

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.)

Canon Inc

Original Assignee

Canon Inc

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.)

1988-08-31

Filing date

1989-08-30

Publication date

1994-07-14

1989-08-30 Application filed by Canon Inc filed Critical Canon Inc

1994-07-14 Application granted granted Critical

1994-07-14 Publication of DE68915906D1 publication Critical patent/DE68915906D1/de

1994-09-29 Publication of DE68915906T2 publication Critical patent/DE68915906T2/de

2009-08-31 Anticipated expiration legal-status Critical

Status 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
- 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
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
- 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
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0856—Detection or control means for the developer level
- G03G15/0862—Detection or control means for the developer level the level being measured by optical means
- 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
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
- G03G15/0891—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers
- G03G15/0893—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers in a closed loop within the sump of the developing device

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Dry Development In Electrophotography (AREA)

DE68915906T 1988-08-31 1989-08-30 Bildaufzeichnungsgerät. Expired - Fee Related DE68915906T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP21480688		1988-08-31
JP21480388		1988-08-31

Publications (2)

Publication Number	Publication Date
DE68915906D1 true DE68915906D1 (de)	1994-07-14
DE68915906T2 DE68915906T2 (de)	1994-09-29

Family

ID=26520508

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68915906T Expired - Fee Related DE68915906T2 (de)	1988-08-31	1989-08-30	Bildaufzeichnungsgerät.

Country Status (3)

Country	Link
US (1)	US4942431A (de)
EP (1)	EP0357390B1 (de)
DE (1)	DE68915906T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0310272A (ja) *	1989-06-07	1991-01-17	Canon Inc	画像形成装置
JP3175776B2 (ja) *	1991-01-31	2001-06-11	ミノルタ株式会社	トナー補給方法
US5183964A (en) *	1992-01-03	1993-02-02	Eastman Kodak Company	Toner charge control
US5365319A (en) *	1992-03-05	1994-11-15	Canon Kabushiki Kaisha	Image forming apparatus replenishing toner by detecting the ratio of toner and carrier and the density of the developer
JP3451470B2 (ja) *	1996-12-20	2003-09-29	株式会社リコー	トナー濃度制御装置
US6381421B1 (en) *	2000-09-19	2002-04-30	Toshiba Tec Kabushiki Kaisha	Image forming apparatus having improved developer filling capability
JP3919683B2 (ja) *	2003-03-10	2007-05-30	キヤノン株式会社	現像装置
KR100788674B1 (ko) *	2005-11-17	2007-12-26	삼성전자주식회사	현상제 공급 제어방법 및 장치
US7881639B2 (en) *	2008-04-08	2011-02-01	Xerox Corporation	Developer units, electrophotographic apparatuses and methods of supplying developer material to photoconductive members
JP5545449B2 (ja) *	2010-10-13	2014-07-09	株式会社リコー	画像形成装置
JP5645862B2 (ja) *	2012-03-14	2014-12-24	京セラドキュメントソリューションズ株式会社	画像形成装置
JP5820795B2 (ja) *	2012-10-15	2015-11-24	京セラドキュメントソリューションズ株式会社	画像形成装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55101968A (en) *	1979-01-31	1980-08-04	Ricoh Co Ltd	Image control method of electrophotography
US4312589A (en) *	1979-11-19	1982-01-26	International Business Machines Corporation	Charge density control for an electrostatic copier
US4341461A (en) *	1980-04-07	1982-07-27	Xerox Corporation	Development control of a reproduction machine
JPS5880663A (ja) *	1981-11-07	1983-05-14	Ricoh Co Ltd	記録濃度制御方法
GB2127590B (en) *	1982-09-21	1987-04-15	Xerox Corp	Toner density control
US4607933A (en) *	1983-07-14	1986-08-26	Konishiroku Photo Industry Co., Ltd.	Method of developing images and image recording apparatus utilizing such method
JPS61166566A (ja) *	1985-01-19	1986-07-28	Sanyo Electric Co Ltd	トナ−濃度制御装置
JPS61267775A (ja) *	1985-05-22	1986-11-27	Toshiba Corp	トナ−残量表示装置
JPS6225777A (ja) *	1985-07-25	1987-02-03	Ricoh Co Ltd	電子写真装置における画像濃度制御方式
JPS6385661A (ja) *	1986-09-30	1988-04-16	Toshiba Corp	画像形成装置における現像剤濃度調整装置
US4785331A (en) *	1986-11-13	1988-11-15	Minolta Camera Kabushiki Kaisha	Electrophotographic copying method and apparatus
US4847659A (en) *	1987-05-21	1989-07-11	Eastman Kodak Company	Apparatus for controlling toner replenishment in electrostatographic printer

1989
- 1989-08-25 US US07/398,444 patent/US4942431A/en not_active Expired - Lifetime
- 1989-08-30 EP EP89308751A patent/EP0357390B1/de not_active Expired - Lifetime
- 1989-08-30 DE DE68915906T patent/DE68915906T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US4942431A (en)	1990-07-17
EP0357390A3 (de)	1991-05-29
EP0357390B1 (de)	1994-06-08
DE68915906T2 (de)	1994-09-29
EP0357390A2 (de)	1990-03-07

Legal Events

Date	Code	Title	Description
1995-07-06	8364	No opposition during term of opposition
2009-07-02	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE68920781D1 (de)	1995-03-09	Bildaufzeichnungsgerät.
DE68915235D1 (de)	1994-06-16	Bildaufzeichnungsgerät.
DE68917791D1 (de)	1994-10-06	Bildaufzeichnungsvorrichtung.
DE68921819D1 (de)	1995-04-27	Bildaufzeichnungsgerät.
DE68922316D1 (de)	1995-05-24	Bildaufzeichnungsgerät.
DE68915932D1 (de)	1994-07-14	Aufzeichnungsgerät.
DE68923543D1 (de)	1995-08-24	Bildaufzeichnungsvorrichtung.
DE3887526D1 (de)	1994-03-10	Bildaufzeichnungssystem.
DE3779595D1 (de)	1992-07-09	Bildaufnahmevorrichtung.
DE69017739D1 (de)	1995-04-20	Videoaufzeichnungsgerät.
DE3750859D1 (de)	1995-01-26	Bildaufzeichnungsvorrichtung.
DE68909470D1 (de)	1993-11-04	Bildaufnahmegeraet.
DE68927250D1 (de)	1996-10-31	Bildaufzeichnungsgerät
DE68923484D1 (de)	1995-08-24	Bildaufzeichnungsgerät.
DE68918683D1 (de)	1994-11-10	Bildaufzeichnungsapparat.
DE3776369D1 (de)	1992-03-12	Bildaufnahmevorrichtung.
DE68913091D1 (de)	1994-03-24	Bildaufzeichnungsgerät.
DE3850594D1 (de)	1994-08-18	Bildaufzeichnungsgerät.
DE3885307D1 (de)	1993-12-02	Bildaufzeichnungsgerät.
DE68922076D1 (de)	1995-05-11	Aufzeichnungsgerät.
DE69018739D1 (de)	1995-05-24	Bildaufzeichnungsgerät.
DE68915906D1 (de)	1994-07-14	Bildaufzeichnungsgerät.
DE3786045D1 (de)	1993-07-08	Bildaufzeichnungsvorrichtung.
DE3778957D1 (de)	1992-06-17	Bildaufzeichnungsgeraet.
DE68915084D1 (de)	1994-06-09	Bildaufzeichnungsgerät.