EP0146825A3 - Elektrostatischer Tonerabstosser für ein elektrophotographisches Gerät - Google Patents

Elektrostatischer Tonerabstosser für ein elektrophotographisches Gerät Download PDF

Info

Publication number
EP0146825A3
EP0146825A3 EP84114583A EP84114583A EP0146825A3 EP 0146825 A3 EP0146825 A3 EP 0146825A3 EP 84114583 A EP84114583 A EP 84114583A EP 84114583 A EP84114583 A EP 84114583A EP 0146825 A3 EP0146825 A3 EP 0146825A3
Authority
EP
European Patent Office
Prior art keywords
toner
repeller
electrically charged
electrophotographic apparatus
electrostatic dust
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
EP84114583A
Other languages
English (en)
French (fr)
Other versions
EP0146825A2 (de
Inventor
Abdullatif M. Kasu
Thomas Robson
Richard C. Fedder
Aubrey E. Thompson
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.)
Unisys Corp
Original Assignee
Burroughs Corp
Unisys Corp
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 Burroughs Corp, Unisys Corp filed Critical Burroughs Corp
Publication of EP0146825A2 publication Critical patent/EP0146825A2/de
Publication of EP0146825A3 publication Critical patent/EP0146825A3/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
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)
  • Control Or Security For Electrophotography (AREA)
EP84114583A 1983-11-30 1984-11-30 Elektrostatischer Tonerabstosser für ein elektrophotographisches Gerät Ceased EP0146825A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55652983A 1983-11-30 1983-11-30
US556529 1983-11-30

Publications (2)

Publication Number Publication Date
EP0146825A2 EP0146825A2 (de) 1985-07-03
EP0146825A3 true EP0146825A3 (de) 1986-12-30

Family

ID=24221727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114583A Ceased EP0146825A3 (de) 1983-11-30 1984-11-30 Elektrostatischer Tonerabstosser für ein elektrophotographisches Gerät

Country Status (4)

Country Link
EP (1) EP0146825A3 (de)
JP (1) JPS61500568A (de)
CA (1) CA1229373A (de)
WO (1) WO1985002471A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937694A1 (de) * 1978-09-19 1980-03-27 Minolta Camera Kk Entwicklereinrichtung mit magnetischer buerste fuer elektrofotografische kopiermaschinen
GB2103114A (en) * 1981-07-01 1983-02-16 Xerox Corp Electrostatographic reproduction
EP0098178A2 (de) * 1982-06-30 1984-01-11 Xerox Corporation Verfahren und Vorrichtung zum örtlichen Begrenzen von Toner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987660A (en) * 1955-06-06 1961-06-06 Haloid Xerox Inc Xerographic charging
US3937570A (en) * 1971-06-03 1976-02-10 Xerox Corporation Cloud suppression in an electrostatic copying apparatus
US4168901A (en) * 1975-01-21 1979-09-25 Canon Kabushiki Kaisha Developer housing sealing device for electrophotography
DE2816621C3 (de) * 1978-04-17 1980-10-09 Lumoprint Zindler Kg (Gmbh & Co), 2000 Hamburg Dichtungsanordnung in einer Entwicklungsvorrichtung eines Kopiergeräte
JPS5664365A (en) * 1979-10-30 1981-06-01 Ricoh Co Ltd Developing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937694A1 (de) * 1978-09-19 1980-03-27 Minolta Camera Kk Entwicklereinrichtung mit magnetischer buerste fuer elektrofotografische kopiermaschinen
GB2103114A (en) * 1981-07-01 1983-02-16 Xerox Corp Electrostatographic reproduction
EP0098178A2 (de) * 1982-06-30 1984-01-11 Xerox Corporation Verfahren und Vorrichtung zum örtlichen Begrenzen von Toner

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Vol.6, no.255 (P-162)[1133], December 14, 1982; & JP-A-57 150 864 (KONISHROKU SHASHIN KOGYO K.K.) 17.09.1982 *
PATENTS ABSTRACTS OF JAPAN, vol.7, no.130 (P-202)[1275], June 7, 1983; & JP-A-58 46 365 (RICOH K.K.) 17.03.1983 *

Also Published As

Publication number Publication date
JPH0222950B2 (de) 1990-05-22
CA1229373A (en) 1987-11-17
EP0146825A2 (de) 1985-07-03
JPS61500568A (ja) 1986-03-27
WO1985002471A1 (en) 1985-06-06

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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

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AK Designated contracting states

Designated state(s): BE DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19860103

PUAL Search report despatched

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AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: UNISYS CORPORATION

17Q First examination report despatched

Effective date: 19871217

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: 19890211

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FEDDER, RICHARD C.

Inventor name: KASU, ABDULLATIF M.

Inventor name: THOMPSON, AUBREY E.

Inventor name: ROBSON THOMAS