EP0043505A3 - Vorrichtung zum Austausch von in einer Entwicklerstation befindlichem Entwickler - Google Patents

Vorrichtung zum Austausch von in einer Entwicklerstation befindlichem Entwickler Download PDF

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Publication number
EP0043505A3
EP0043505A3 EP81104894A EP81104894A EP0043505A3 EP 0043505 A3 EP0043505 A3 EP 0043505A3 EP 81104894 A EP81104894 A EP 81104894A EP 81104894 A EP81104894 A EP 81104894A EP 0043505 A3 EP0043505 A3 EP 0043505A3
Authority
EP
European Patent Office
Prior art keywords
developer
station
amount
exchange
supplied
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.)
Withdrawn
Application number
EP81104894A
Other languages
English (en)
French (fr)
Other versions
EP0043505A2 (de
Inventor
Hubert Ing. Grad. Mugrauer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0043505A2 publication Critical patent/EP0043505A2/de
Publication of EP0043505A3 publication Critical patent/EP0043505A3/de
Withdrawn legal-status Critical Current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
    • G03G15/0844—Arrangements for purging used developer from the developing unit
    • 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
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit

Landscapes

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

Abstract

Zur Entwicklung von Ladungsbildern auf fotoelektri­ schen Trägern wird ein Entwicklergemisch verwendet, das aus Trägerteilchen und Tonerpartikel besteht. Um ein zu starkes altern dieses Entwicklergemisches zu verhindern, wird der Entwicklerstation (10) ständig frischer Entwickler zugeführt und ständig in gleicher Menge gebrauchter Ent­ wickler abgeführt. Die Menge des Entwicklers, die der Ent­ wicklerstation (10) zugeführt bzw. aus dieser entfernt wird, wird mit Hilfe von Dosiereinrichtungen (26, 30) festgelegt. Diese können aus einem Drehkörper mit einer Bohrung be­ stehen. Die Bohrung wird mit Entwickler gefüllt, nach Dre­ hung des Körpers um 180° wiederum entleert. Die Dreh­ geschwindigkeit des Drehkörpers und Größe der Bohrung bestimmen die Entwicklermenge, die der Entwicklerstation (10) zugeführt bzw. aus dieser entnommen wird.
EP81104894A 1980-07-02 1981-06-24 Vorrichtung zum Austausch von in einer Entwicklerstation befindlichem Entwickler Withdrawn EP0043505A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3025103 1980-07-02
DE19803025103 DE3025103A1 (de) 1980-07-02 1980-07-02 Vorrichtung zum austausch von in einer entwicklerstation befindlichem entwickler

Publications (2)

Publication Number Publication Date
EP0043505A2 EP0043505A2 (de) 1982-01-13
EP0043505A3 true EP0043505A3 (de) 1982-06-16

Family

ID=6106256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104894A Withdrawn EP0043505A3 (de) 1980-07-02 1981-06-24 Vorrichtung zum Austausch von in einer Entwicklerstation befindlichem Entwickler

Country Status (4)

Country Link
US (1) US4358196A (de)
EP (1) EP0043505A3 (de)
JP (1) JPS5745571A (de)
DE (1) DE3025103A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895349A (ja) * 1981-11-30 1983-06-06 Fuji Photo Film Co Ltd 感光性プレ−トの現像補充液補充方法
US5095338A (en) * 1991-02-21 1992-03-10 Xerox Corporation Developer which discharges used carrier particles using a magnetic valve
JP2865451B2 (ja) * 1991-07-29 1999-03-08 シャープ株式会社 画像形成装置
JPH05150627A (ja) * 1991-11-29 1993-06-18 Sharp Corp 現像装置
JP3483087B2 (ja) * 1995-04-14 2004-01-06 株式会社リコー 画像形成システム
US5722017A (en) * 1996-10-04 1998-02-24 Xerox Corporation Liquid developing material replenishment system and method
DE10107647A1 (de) * 2001-02-19 2002-09-19 Oce Printing Systems Gmbh Vorrichtung und Verfahren zum Ersatz von gealtertem Entwickler
US7257354B2 (en) * 2001-02-19 2007-08-14 Oce Printing Systems Gmbh Device and method for the replacement of out-of-date developer
JP2003195636A (ja) * 2001-12-27 2003-07-09 Canon Inc 現像装置及び画像形成装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882823A (en) * 1973-08-15 1975-05-13 Minolta Camera Kk Stirring and scraping device for developing material
US3928764A (en) * 1972-06-02 1975-12-23 Hoechst Ag Method and apparatus for measuring and controlling the toner concentration in electrophotographic reproduction machines
DE2747014A1 (de) * 1976-10-19 1978-04-27 Ricoh Kk Elektrostatisches kopiergeraet
US4155638A (en) * 1978-03-02 1979-05-22 Eastman Kodak Company Toner concentration monitor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331592A (en) * 1965-02-04 1967-07-18 Xerox Corp Xerographic fusing apparatus
US3991709A (en) * 1971-02-09 1976-11-16 Canon Kabushiki Kaisha Regenerating device for developing liquid
US4110029A (en) * 1973-09-27 1978-08-29 Canon Kabushiki Kaisha Liquid developer for an electrostatic copying device
US4166702A (en) * 1975-05-12 1979-09-04 Ricoh Company, Ltd. Device for detecting a toner concentration in a developing solution
JPS5815789B2 (ja) * 1975-10-01 1983-03-28 株式会社リコー デンシシヤシンフクシヤキニオケル オ−トバイアスゲンゾウホウホウ
DE2644216A1 (de) * 1976-09-30 1978-04-06 Agfa Gevaert Ag Entwicklungseinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928764A (en) * 1972-06-02 1975-12-23 Hoechst Ag Method and apparatus for measuring and controlling the toner concentration in electrophotographic reproduction machines
US3882823A (en) * 1973-08-15 1975-05-13 Minolta Camera Kk Stirring and scraping device for developing material
DE2747014A1 (de) * 1976-10-19 1978-04-27 Ricoh Kk Elektrostatisches kopiergeraet
US4155638A (en) * 1978-03-02 1979-05-22 Eastman Kodak Company Toner concentration monitor

Also Published As

Publication number Publication date
JPS5745571A (en) 1982-03-15
DE3025103A1 (de) 1982-01-21
US4358196A (en) 1982-11-09
EP0043505A2 (de) 1982-01-13

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

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17P Request for examination filed

Effective date: 19811028

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LU NL SE

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LU NL SE

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

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18D Application deemed to be withdrawn

Effective date: 19831230

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MUGRAUER, HUBERT, ING. GRAD.