GB1480087A - Development apparatus - Google Patents

Development apparatus

Info

Publication number
GB1480087A
GB1480087A GB48871/74A GB4887174A GB1480087A GB 1480087 A GB1480087 A GB 1480087A GB 48871/74 A GB48871/74 A GB 48871/74A GB 4887174 A GB4887174 A GB 4887174A GB 1480087 A GB1480087 A GB 1480087A
Authority
GB
United Kingdom
Prior art keywords
roll
flow
nov
brushes
magnets
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
Application number
GB48871/74A
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of GB1480087A publication Critical patent/GB1480087A/en
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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

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

Abstract

1480087 Electrostatographic developing XEROX CORP. 12 Nov 1974 [19 Nov 1973] 48871/74 Heading G2H A magnetic brush developing device for reducing developer flow at the ends of the brush comprises flow baffle means 20 in the form of stationary magnetic brushes 21 produced by magnets 22, 23 which may be wedge shaped, as shown, or rectangular. The brushes 21 regulate the flow of developer at the ends of magnetic brush roll 42, which is formed by a rotatable sleeve 44 housing stationary magnets 45, 46. A lifting roll is provided to attract unused particles from roll 42 and return them to sump 40.
GB48871/74A 1973-11-19 1974-11-12 Development apparatus Expired GB1480087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US416898A US3915121A (en) 1973-11-19 1973-11-19 Development apparatus

Publications (1)

Publication Number Publication Date
GB1480087A true GB1480087A (en) 1977-07-20

Family

ID=23651764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48871/74A Expired GB1480087A (en) 1973-11-19 1974-11-12 Development apparatus

Country Status (9)

Country Link
US (1) US3915121A (en)
JP (1) JPS554839Y2 (en)
AU (1) AU7528374A (en)
CA (1) CA1030753A (en)
DE (1) DE2440308C3 (en)
FR (1) FR2251846B1 (en)
GB (1) GB1480087A (en)
IT (1) IT1025742B (en)
NL (1) NL7413619A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141049A (en) * 1983-06-08 1984-12-12 Xerox Corp Electrostatographic development apparatus

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7509870A (en) * 1975-08-20 1977-02-22 Oce Van Der Grinten Nv MAGNET ROLL.
US4095883A (en) * 1976-02-02 1978-06-20 Xerox Corporation Magnetic mixing apparatus and process
JPS5552441Y2 (en) * 1976-03-29 1980-12-05
JPS53111738A (en) * 1977-03-11 1978-09-29 Toshiba Corp Developing device of magnetic brush type
DE2816621C3 (en) * 1978-04-17 1980-10-09 Lumoprint Zindler Kg (Gmbh & Co), 2000 Hamburg Sealing arrangement in a developing device of a copier
US4292924A (en) * 1979-10-03 1981-10-06 Xerox Corporation Magnetic brush apparatus
JPS6054149U (en) * 1983-09-20 1985-04-16 株式会社東芝 developing device
EP0314436B1 (en) * 1987-10-28 1993-12-29 Canon Kabushiki Kaisha A developing apparatus
EP0608968B1 (en) * 1989-03-31 1998-05-27 Canon Kabushiki Kaisha A developing apparatus
JP2899079B2 (en) * 1990-07-10 1999-06-02 キヤノン株式会社 Developing device
EP1345089A1 (en) * 2002-03-13 2003-09-17 Seiko Epson Corporation Developing unit and developing device for an image-forming apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892446A (en) * 1956-10-30 1959-06-30 Rca Corp Apparatus for developing electrostatic image
US2904000A (en) * 1957-05-15 1959-09-15 Century Geophysical Corp Magnetic-brush developer
US3058444A (en) * 1959-03-13 1962-10-16 American Photocopy Equip Co Apparatus for developing electrostatic image on electrographic sheet
US3133834A (en) * 1961-06-22 1964-05-19 Rca Corp Electrostatic developing apparatus
DE7025426U (en) * 1969-07-08 1970-12-10 Minolta Camera Kk DRY DEVELOPMENT DEVICE IN ELECTRONIC PHOTOGRAPHY.
US3753420A (en) * 1971-08-11 1973-08-21 Olivetti & Co Spa Magnetic brush developer system
BE792317A (en) * 1971-12-06 1973-03-30 Warner Lambert Co SAFETY RAZOR CARTRIDGES AND DEVICE FOR THEIR DISTRIBUTION
BE792643A (en) * 1971-12-17 1973-03-30 Ibm ELECTROPHOTOGRAPHIC DEVELOPMENT DEVICE
US3822139A (en) * 1972-10-13 1974-07-02 Addressograph Multigraph Electrostatic developer device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141049A (en) * 1983-06-08 1984-12-12 Xerox Corp Electrostatographic development apparatus

Also Published As

Publication number Publication date
NL7413619A (en) 1974-12-30
US3915121A (en) 1975-10-28
FR2251846B1 (en) 1976-10-22
JPS554839Y2 (en) 1980-02-05
IT1025742B (en) 1978-08-30
CA1030753A (en) 1978-05-09
FR2251846A1 (en) 1975-06-13
JPS5076836U (en) 1975-07-04
DE2440308A1 (en) 1975-05-22
DE2440308C3 (en) 1981-02-05
AU7528374A (en) 1976-05-13
DE2440308B2 (en) 1980-05-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee