DK438179A - Apparat til detektering af tonerkoncentration i et fremkaldepulver - Google Patents

Apparat til detektering af tonerkoncentration i et fremkaldepulver

Info

Publication number: DK438179A
Authority: DK; Denmark
Prior art keywords: toner concentration; developer powder; developer; powder; toner
Prior art date: 1978-10-18

Application number

DK438179A

Other languages

English (en)

Inventor

I Terashima

Original Assignee

Hitachi 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.)

1978-10-18

Filing date

1979-10-17

Publication date

1980-04-19

1979-10-17 Application filed by Hitachi Ltd filed Critical Hitachi Ltd

1980-04-19 Publication of DK438179A publication Critical patent/DK438179A/da

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
- G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic 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

Landscapes

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

DK438179A 1978-10-18 1979-10-17 Apparat til detektering af tonerkoncentration i et fremkaldepulver DK438179A (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP12738178A JPS5555368A (en)	1978-10-18	1978-10-18	Toner concentration detector

Publications (1)

Publication Number	Publication Date
DK438179A true DK438179A (da)	1980-04-19

Family

ID=14958574

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK438179A DK438179A (da)	1978-10-18	1979-10-17	Apparat til detektering af tonerkoncentration i et fremkaldepulver

Country Status (4)

Country	Link
US (1)	US4292925A (da)
JP (1)	JPS5555368A (da)
DE (1)	DE2942066C2 (da)
DK (1)	DK438179A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5667871A (en) *	1979-11-07	1981-06-08	Ricoh Co Ltd	Toner concentration control unit
JPS5726879A (en) *	1980-07-23	1982-02-13	Mita Ind Co Ltd	Control device for replenishing of developer
US4563086A (en) *	1984-10-22	1986-01-07	Xerox Corporation	Copy quality monitoring for magnetic images
US4987853A (en) *	1988-12-05	1991-01-29	Eastman Kodak Company	Magnetic brush development apparatus
JPH02108437U (da) *	1989-02-16	1990-08-29
US7385419B1 (en) *	2003-05-30	2008-06-10	Actel Corporation	Dedicated input/output first in/first out module for a field programmable gate array
JP6004799B2 (ja) *	2012-07-10	2016-10-12	キヤノン株式会社	現像剤収容容器及び画像形成装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3999687A (en) *	1974-07-17	1976-12-28	Savin Business Machines Corporation	Toner concentration detector
JPS52125339A (en) *	1976-04-14	1977-10-21	Hitachi Ltd	Detector for toner density
DE2815841C3 (de) *	1977-04-13	1980-10-23	Hitachi, Ltd., Tokio	Elektrophotographische Entwicklungsvorrichtung mit einer Einrichtung zum Erfassen der Tonerteilchenkonzentration in einem Entwicklerpulver
JPS6027985B2 (ja) *	1977-11-07	1985-07-02	株式会社日立製作所	現像剤トナ−濃度検出装置

1978
- 1978-10-18 JP JP12738178A patent/JPS5555368A/ja active Granted
1979
- 1979-10-12 US US06/084,455 patent/US4292925A/en not_active Expired - Lifetime
- 1979-10-17 DE DE2942066A patent/DE2942066C2/de not_active Expired
- 1979-10-17 DK DK438179A patent/DK438179A/da not_active Application Discontinuation

Also Published As

Publication number	Publication date
DE2942066A1 (de)	1980-04-24
DE2942066C2 (de)	1986-08-07
JPS6217230B2 (da)	1987-04-16
JPS5555368A (en)	1980-04-23
US4292925A (en)	1981-10-06

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Legal Events

Date	Code	Title	Description
1989-11-20	AHS	Application shelved for other reasons than non-payment