JPH0465378B2 - - Google Patents

Info

Publication number
JPH0465378B2
JPH0465378B2 JP61163936A JP16393686A JPH0465378B2 JP H0465378 B2 JPH0465378 B2 JP H0465378B2 JP 61163936 A JP61163936 A JP 61163936A JP 16393686 A JP16393686 A JP 16393686A JP H0465378 B2 JPH0465378 B2 JP H0465378B2
Authority
JP
Japan
Prior art keywords
photoconductor
toner
magnetic roller
sealing member
beads
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.)
Expired - Lifetime
Application number
JP61163936A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6256975A (ja
Inventor
Maikeru Adoree Jeemuzu
Changu Fuiritsupu
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS6256975A publication Critical patent/JPS6256975A/ja
Publication of JPH0465378B2 publication Critical patent/JPH0465378B2/ja
Granted 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/007—Arrangement or disposition of parts of the cleaning unit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
JP61163936A 1985-09-05 1986-07-14 電子写真現像装置の密閉装置 Granted JPS6256975A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US772806 1985-09-05
US06/772,806 US4616919A (en) 1985-09-05 1985-09-05 Non-contact developer seal

Publications (2)

Publication Number Publication Date
JPS6256975A JPS6256975A (ja) 1987-03-12
JPH0465378B2 true JPH0465378B2 (en]) 1992-10-19

Family

ID=25096291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61163936A Granted JPS6256975A (ja) 1985-09-05 1986-07-14 電子写真現像装置の密閉装置

Country Status (4)

Country Link
US (1) US4616919A (en])
EP (1) EP0216093B1 (en])
JP (1) JPS6256975A (en])
DE (1) DE3671551D1 (en])

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843421A (en) * 1988-06-24 1989-06-27 Xerox Corporation System for priming the magnetic brush end seals of copier/printer machines
JPH04136965A (ja) * 1990-09-28 1992-05-11 Canon Inc 現像装置
US5138382A (en) * 1991-03-27 1992-08-11 Xerox Corporation Apparatus and method for creating a developer housing seal via a curtain of carrier beads
US5216467A (en) * 1992-01-30 1993-06-01 Xerox Corporation Brush-based carrier bead removal device for a developer housing in a xerographic apparatus
US5442423A (en) * 1994-06-23 1995-08-15 Xerox Corporation External development housing bearings
US5450169A (en) * 1994-06-23 1995-09-12 Xerox Corporation Multi-lobe magnetic seals
US5552864A (en) * 1995-01-17 1996-09-03 Xerox Corporation Magnetic seal with tapered shunts
DE19540138C1 (de) * 1995-10-27 1996-12-05 Siemens Nixdorf Inf Syst Entwicklerstation mit mehreren nebeneinander angeordneten Entwicklerkammern
US5758230A (en) * 1995-11-10 1998-05-26 Mita Industrial Co., Ltd. Device for developing electrostatic latent image
US5809386A (en) * 1995-12-25 1998-09-15 Ricoh Company, Ltd. Developing device for an image forming apparatus
US6341206B1 (en) * 1999-06-10 2002-01-22 Matsushita Electric Industrial Co., Ltd. Image developing apparatus having developer seal
US6487383B2 (en) 2001-04-12 2002-11-26 Lexmark International, Inc. Dynamic end-seal for toner development unit
JP2003065689A (ja) * 2001-08-24 2003-03-05 Furukawa Electric Co Ltd:The 密閉型冷却装置
US6553195B2 (en) 2001-09-27 2003-04-22 Kurt Matthew Korfhage Dynamic end seal for image forming apparatus
US7324775B2 (en) * 2004-03-08 2008-01-29 Seiko Epson Corporation Image forming apparatus having developing device with sealing members and method of manufacture
US7623807B2 (en) * 2005-12-15 2009-11-24 Lexmark International, Inc. Dynamic seal for component surfaces
US8116657B2 (en) * 2007-12-18 2012-02-14 Lexmark International, Inc. Upper seal for inhibiting doctor blade toner leakage
US8099012B2 (en) * 2007-12-18 2012-01-17 Lexmark International, Inc. Developer roll lip seal
US8644725B2 (en) 2011-05-18 2014-02-04 Lexmark International, Inc. Multiple stiffness seal for imaging component surfaces
JP5861679B2 (ja) * 2013-09-02 2016-02-16 コニカミノルタ株式会社 現像装置および画像形成装置
US10831131B1 (en) * 2019-10-01 2020-11-10 Lexmark International, Inc. Developer unit assembly for restricting movement of a developer roll end seal in an electrophotographic image forming device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE651786A (en]) * 1963-08-13
NL6411125A (en]) * 1963-09-25 1965-03-26
US3635196A (en) * 1969-12-30 1972-01-18 Xerox Corp Pneumatically controlled seal
US3647293A (en) * 1970-12-01 1972-03-07 Ibm Copying system featuring combined developing-cleaning station alternately activated
US3830646A (en) * 1972-11-03 1974-08-20 Xerox Corp Image registration correction for non-impact printers
US4168901A (en) * 1975-01-21 1979-09-25 Canon Kabushiki Kaisha Developer housing sealing device for electrophotography
US4258372A (en) * 1978-04-14 1981-03-24 Ricoh Company, Ltd. Small clearance retention apparatus
DE2816621C3 (de) * 1978-04-17 1980-10-09 Lumoprint Zindler Kg (Gmbh & Co), 2000 Hamburg Dichtungsanordnung in einer Entwicklungsvorrichtung eines Kopiergeräte
JPS5589874A (en) * 1978-12-28 1980-07-07 Fuji Xerox Co Ltd Magnetic brush developing device
JPS55113074A (en) * 1979-02-24 1980-09-01 Konishiroku Photo Ind Co Ltd Developing device for electrophotographic copier
JPS55113061A (en) * 1979-02-24 1980-09-01 Konishiroku Photo Ind Co Ltd Scattering toner collector
US4304192A (en) * 1980-03-31 1981-12-08 Ricoh Company, Ltd. Developer seal
JPH0116103Y2 (en]) * 1980-08-28 1989-05-12
JPS582860A (ja) * 1981-06-29 1983-01-08 Canon Inc 画像形成装置
JPS5953362U (ja) * 1982-10-01 1984-04-07 株式会社リコー 磁気ブラシ現像装置
US4575217A (en) * 1984-12-04 1986-03-11 Eastman Kodak Company Apparatus for selectively sealing a discrete dielectric sheet developer station

Also Published As

Publication number Publication date
US4616919A (en) 1986-10-14
JPS6256975A (ja) 1987-03-12
EP0216093B1 (en) 1990-05-23
DE3671551D1 (de) 1990-06-28
EP0216093A1 (en) 1987-04-01

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