DE3169041D1 - Developing material supplying control device for electrostatic copying apparatus - Google Patents

Developing material supplying control device for electrostatic copying apparatus

Info

Publication number: DE3169041D1
Authority: DE; Germany
Prior art keywords: control device; copying apparatus; material supplying; developing material; electrostatic copying
Prior art date: 1980-07-23
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

Application number

DE8181303385T

Other languages

English (en)

Inventor

Hiroshi Kimura

Masahiko Hisajima

Yutaka Shigemura

Isao Yada

Yoichiro Irie

Kiyoshi Morimoto

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.)

1980-07-23

Filing date

1981-07-23

Publication date

1985-03-28

1981-07-23 Application filed by Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd

1985-03-28 Application granted granted Critical

1985-03-28 Publication of DE3169041D1 publication Critical patent/DE3169041D1/de

Status Expired 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
- G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic means
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S222/00—Dispensing
- Y10S222/01—Xerography

DE8181303385T 1980-07-23 1981-07-23 Developing material supplying control device for electrostatic copying apparatus Expired DE3169041D1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP10177080A JPS5726879A (en)	1980-07-23	1980-07-23	Control device for replenishing of developer

Publications (1)

Publication Number	Publication Date
DE3169041D1 true DE3169041D1 (en)	1985-03-28

Family

ID=14309447

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8181303385T Expired DE3169041D1 (en)	1980-07-23	1981-07-23	Developing material supplying control device for electrostatic copying apparatus

Country Status (4)

Country	Link
US (1)	US4405226A (de)
EP (1)	EP0046023B1 (de)
JP (1)	JPS5726879A (de)
DE (1)	DE3169041D1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3149908A1 (de) *	1980-12-19	1982-09-02	Minolta Camera K.K., Osaka	Verfahren zum steuern der tonerkonzentration fuer elektrofotografische kopiergeraete
US4647185A (en) *	1981-10-23	1987-03-03	Canon Kabushiki Kaisha	Developer detecting device
JPS597978A (ja) *	1982-07-07	1984-01-17	Ricoh Co Ltd	トナ−濃度制御装置
JPS5961851A (ja) *	1982-09-30	1984-04-09	Canon Inc	プロセスカートリッジ及びそのカートリッジを用いる画像形成装置
CA1190960A (en) *	1983-02-01	1985-07-23	Andrzej Maczuszenko	Toner system
JPS62976A (ja) *	1985-06-27	1987-01-06	Ricoh Co Ltd	現像装置
DE3620231C1 (de) *	1986-06-16	1987-11-26	Emag Maschfab Gmbh	Mittenantriebsmaschine
JP2678356B2 (ja) *	1986-12-08	1997-11-17	ティーディーケイ株式会社	トナー濃度検出回路
US5003327A (en) *	1989-11-15	1991-03-26	Delphax Systems	Printer autocontrast control
JPH0643757A (ja) *	1992-07-24	1994-02-18	Konica Corp	画像記録装置
US5426486A (en) *	1994-02-22	1995-06-20	Eastman Kodak Company	Toner monitor having magnetic field control
JP2010085538A (ja) *	2008-09-30	2010-04-15	Konica Minolta Business Technologies Inc	画像形成装置及び現像剤補給方法
JP6685773B2 (ja) *	2016-03-02	2020-04-22	キヤノン株式会社	現像装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3572551A (en) *	1969-03-27	1971-03-30	Rca Corp	Apparatus for monitoring and controlling the concentration of toner in a developer mix
DE2055321C3 (de) *	1969-11-11	1975-11-20	Katsuragawa Denki K.K., Tokio	Gerät zum Zuführen eines Toners in einer elektrophotographischen Kopiervorrichtung
JPS5743930B2 (de) *	1973-09-18	1982-09-18
US3970036A (en) *	1974-07-17	1976-07-20	Savin Business Machines Corporation	Toner concentration detector for dry powder magnetic brush toning system
US3999687A (en) *	1974-07-17	1976-12-28	Savin Business Machines Corporation	Toner concentration detector
US4032227A (en) *	1976-01-15	1977-06-28	International Business Machines Corporation	Toner concentration control apparatus
JPS52125339A (en) *	1976-04-14	1977-10-21	Hitachi Ltd	Detector for toner density
JPS52131729A (en) *	1976-04-28	1977-11-04	Ricoh Co Ltd	Toner concentration detection circuit
JPS5349437A (en) *	1976-10-16	1978-05-04	Hitachi Ltd	Toner density detector
US4226525A (en) *	1976-10-19	1980-10-07	Ricoh Company, Ltd.	Electrostatic copying machine
JPS5398840A (en) *	1977-02-09	1978-08-29	Ricoh Co Ltd	Detection of deterioration state of developing agnet
JPS53102479A (en) *	1977-02-20	1978-09-06	Ricoh Co Ltd	Controlling device
JPS53126944A (en) *	1977-04-13	1978-11-06	Hitachi Ltd	Developing device using developing powder
JPS609269B2 (ja) *	1977-04-19	1985-03-08	株式会社リコー	２成分系現像剤におけるトナ−濃度検知方法
DE2727402C2 (de) *	1977-06-18	1979-04-19	Hoechst Ag, 6000 Frankfurt	Vorrichtung zur Messung der Tonerkonzentration eines Entwicklergemisches
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
JPS5555368A (en) *	1978-10-18	1980-04-23	Hitachi Ltd	Toner concentration detector
JPS55161261A (en) *	1979-06-01	1980-12-15	Katsuragawa Denki Kk	Toner replenishing method and its device

1980
- 1980-07-23 JP JP10177080A patent/JPS5726879A/ja active Pending
1981
- 1981-07-16 US US06/283,942 patent/US4405226A/en not_active Expired - Lifetime
- 1981-07-23 EP EP81303385A patent/EP0046023B1/de not_active Expired
- 1981-07-23 DE DE8181303385T patent/DE3169041D1/de not_active Expired

Also Published As

Publication number	Publication date
EP0046023A1 (de)	1982-02-17
US4405226A (en)	1983-09-20
JPS5726879A (en)	1982-02-13
EP0046023B1 (de)	1985-02-20

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Legal Events

Date	Code	Title	Description
1994-07-07	8339	Ceased/non-payment of the annual fee