GB1211865A - Carriers for electrostatographic developers - Google Patents

Carriers for electrostatographic developers

Info

Publication number
GB1211865A
GB1211865A GB45732/67A GB4573267A GB1211865A GB 1211865 A GB1211865 A GB 1211865A GB 45732/67 A GB45732/67 A GB 45732/67A GB 4573267 A GB4573267 A GB 4573267A GB 1211865 A GB1211865 A GB 1211865A
Authority
GB
United Kingdom
Prior art keywords
particles
electrostatographic
copoly
oct
resin
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
GB45732/67A
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 Ltd
Original Assignee
Rank Xerox 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.)
Filing date
Publication date
Application filed by Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1211865A publication Critical patent/GB1211865A/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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/103—Glass particles
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2996—Glass particles or spheres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1,211,865. Electrostatographic developers. RANK XEROX Ltd. Oct.6, 1967 [Oct.11, 1966], No.45732/67. Heading G2H. [Also in Division H1] Electrostatographic carrier particles comprise a matrix material at the external surface thereof, said matrix containing solid, finely-divided conductive particulate material. Preferably the particles comprise a core surrounded by a layer of resin, the conductive particles being dispersed uniformly through the resin or being concentrated at the surface thereof, e.g. by impact. In the examples, particles of carbon black, hydrazine sulphate, aminoguanidine sulphate, Al, PbO 2 or aurin tricarboxylic acid are incorporated into carrier particles consisting of nitrocellulose, or of steel or glass beads coated with copoly (styrene /methyl methacrylate/vinyl triethoxy silane), copoly (vinyl chloride/vinyl acetate) + a blue dye, polyphenylene oxide, or polyvinyl acetate and polyvinyl chloride. Other metals, metal oxides, metal salts and complexes may also be used as the conductive particles.
GB45732/67A 1966-10-11 1967-10-06 Carriers for electrostatographic developers Expired GB1211865A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58581766A 1966-10-11 1966-10-11
US4467670A 1970-06-09 1970-06-09

Publications (1)

Publication Number Publication Date
GB1211865A true GB1211865A (en) 1970-11-11

Family

ID=26721853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45732/67A Expired GB1211865A (en) 1966-10-11 1967-10-06 Carriers for electrostatographic developers

Country Status (6)

Country Link
US (2) US3533835A (en)
BE (1) BE704918A (en)
DE (1) DE1597887C3 (en)
GB (1) GB1211865A (en)
NL (1) NL6713689A (en)
SE (1) SE323583B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173604A (en) * 1985-03-08 1986-10-15 Ricoh Kk Carrier particles for use in developers for developing latent electrostatic images

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947370A (en) * 1966-07-05 1976-03-30 Eastman Kodak Company Electrophotographic developing compositions
US3833366A (en) * 1969-04-08 1974-09-03 Xerox Corp Carrier compositions
US4018601A (en) * 1969-06-19 1977-04-19 Xerox Corporation Electrostatographic magnetic brush imaging process employing carrier beads comprising high purity nickel
US3850663A (en) * 1970-02-05 1974-11-26 Xerox Corp Cellulose coated carriers
US3778262A (en) * 1971-01-28 1973-12-11 Ibm Improved electrophotographic process
US3873355A (en) * 1971-01-28 1975-03-25 Ibm Coated carrier particles
US3922382A (en) * 1971-01-28 1975-11-25 Ibm Method of manufacturing carrier particles
US3873356A (en) * 1971-01-28 1975-03-25 Ibm Method of manufacturing electrophotographic carriers
US3918968A (en) * 1971-01-28 1975-11-11 Ibm Electrophotographic process utilizing carrier particles coated with a fluoropolymer in development
US3767578A (en) * 1971-06-10 1973-10-23 Xerox Corp Carrier material for electrostatographic developer
CA984202A (en) * 1971-06-10 1976-02-24 Xerox Corporation Carrier material for electrostatographic developer
BE793098A (en) * 1971-12-30 1973-06-20 Xerox Corp ELECTROSTATOGRAPHIC DEVELOPER
DE2203351B1 (en) * 1972-01-25 1973-08-23 Schaad Hans J Method and device for coating objects with plastic powder
BE795428A (en) * 1972-02-14 1973-05-29 Ibm COATING FOR CARRIER PARTICLES USED IN AN ELECTROPHOTOGRAPHIC REPRODUCTION PROCESS
US3947271A (en) * 1972-02-14 1976-03-30 International Business Machines Corporation Electrostatic imaging method using a polytetrafluoroethylene coated carrier particle
US3898170A (en) * 1972-03-21 1975-08-05 Eastman Kodak Co Electrographic carrier vehicle and developer composition
GB1438973A (en) * 1972-05-30 1976-06-09 Xerox Corp Developdr material
US4162226A (en) * 1972-06-05 1979-07-24 Chatterji Arun K Electrostatic toner with an antiplasticizer
US3900414A (en) * 1972-09-28 1975-08-19 Memorex Corp Electrophotographic developer
US3945823A (en) * 1972-11-21 1976-03-23 Xerox Corporation Electrostatographic reversal development with developer comprising poly(p-xylene)-coated carrier particles
JPS5146552B2 (en) * 1972-12-04 1976-12-09
US3804619A (en) * 1972-12-18 1974-04-16 Xerox Corp Color electrophotographic imaging process
US3916065A (en) * 1972-12-18 1975-10-28 Xerox Corp Electrostatographic carrier particles
JPS5054334A (en) * 1973-09-10 1975-05-14
US3909259A (en) * 1973-12-17 1975-09-30 Xerox Corp Color electrophotographic imaging process utilizing specific carrier-toner combinations
US3916064A (en) * 1974-01-21 1975-10-28 Xerox Corp Developer material
US4148640A (en) * 1974-03-11 1979-04-10 Eastman Kodak Company Developer compositions having electrically conducting filaments in carrier particle matrix
US3942979A (en) * 1974-05-30 1976-03-09 Xerox Corporation Imaging system
US3922381A (en) * 1974-06-14 1975-11-25 Addressorgrap Multigraph Corp Chemically treated carrier particles for use in electrophotographic process
US4189390A (en) * 1975-02-21 1980-02-19 Hitachi Metals, Ltd. One-component magnetic developer powder for developing electrostatic latent image and method of making same
US4248950A (en) * 1975-04-21 1981-02-03 Am International, Inc. Electrostatic developer mix containing either MoS2, TiS2, WS.sub.2
US4057426A (en) * 1975-09-29 1977-11-08 Xerox Corporation Magenta toner with a coated carrier
US4058397A (en) * 1975-09-29 1977-11-15 Xerox Corporation Yellow developer employing a coated carrier
US4066563A (en) * 1975-09-29 1978-01-03 Xerox Corporation Copper-tetra-4-(octadecylsulfonomido) phthalocyanine electrophotographic carrier
US4073965A (en) * 1975-09-29 1978-02-14 Xerox Corporation Yellow developer employing a coated carrier and imaging process using same
JPS5246820A (en) * 1975-10-13 1977-04-14 Fuji Xerox Co Ltd Developers for xerography
US4007293A (en) * 1976-03-01 1977-02-08 Xerox Corporation Mechanically viable developer materials
US4073980A (en) * 1976-09-29 1978-02-14 Addressograph Multigraph Corporation Chemically treated carrier particles for use in electrophotography
US4345013A (en) * 1977-02-28 1982-08-17 Black Copy Company, Inc. Dual purpose magnetic toner
CA1117803A (en) * 1977-04-04 1982-02-09 Christopher J. Auclair Carrier particle with outer layer containing vinyl polymer and tetroheptyl ammonium bromide
US4133610A (en) * 1977-12-30 1979-01-09 International Business Machines Corporation Optimum preclean corona current for eliminating the accumulation of contaminants from developers
US4434220A (en) 1978-11-13 1984-02-28 International Business Machines Corporation Electrophotographic toner and carrier
CA1139976A (en) * 1978-12-22 1983-01-25 Howard A. Fromson Process and apparatus for making lithographic printing plates
US4225660A (en) * 1979-01-08 1980-09-30 Pitney Bowes Inc. Treated toner carrier and method of making the same
CA1140784A (en) * 1979-06-04 1983-02-08 Xerox Corporation Conductive powder coated electrostatographic carriers
US4824753A (en) * 1986-04-30 1989-04-25 Minolta Camera Kabushiki Kaisha Carrier coated with plasma-polymerized film and apparatus for preparing same
JPH0690542B2 (en) * 1986-07-10 1994-11-14 ミノルタ株式会社 Binder type carrier
JPH0690541B2 (en) * 1986-07-10 1994-11-14 ミノルタ株式会社 Binder type carrier
US4806985A (en) * 1986-07-11 1989-02-21 Xerox Corporation Stripper fingers
US4822708A (en) * 1986-08-01 1989-04-18 Minolta Camera Kabushiki Kaisha Carrier for use in developing device of electrostatic latent image and production thereof
JP2797294B2 (en) * 1987-01-29 1998-09-17 ミノルタ株式会社 Binder type carrier
JP2643136B2 (en) * 1987-02-20 1997-08-20 ミノルタ株式会社 Carrier for electrophotography
US4810611A (en) * 1987-11-02 1989-03-07 Xerox Corporation Developer compositions with coated carrier particles having incorporated therein colorless additives
JPH01309074A (en) * 1988-06-07 1989-12-13 Minolta Camera Co Ltd Developer composition
US4952477A (en) * 1988-08-12 1990-08-28 Xerox Corporation Toner and developer compositions with semicrystalline polyolefin resins
DE3831091A1 (en) * 1988-09-13 1990-03-29 Basf Ag OXIDE COATED CARRIER, A METHOD FOR PRODUCING THIS CARRIER AND THEIR USE
US5118587A (en) * 1989-07-28 1992-06-02 Toda Kogyo Corporation Magnetic particles used for electrostatic latent image developer and process for producing the same
US5354638A (en) * 1989-12-11 1994-10-11 Tdk Corporation Magnetic carrier for use in electrophotographic development
US5223369A (en) * 1992-03-16 1993-06-29 Xerox Corporation Process for coating carrier particles
US5998076A (en) * 1998-03-09 1999-12-07 Xerox Corporation Carrier
US6528225B1 (en) 1998-03-09 2003-03-04 Xerox Corporation Carrier
US6004712A (en) * 1998-08-26 1999-12-21 Xerox Corporation Coated carrier
US5945244A (en) * 1998-08-26 1999-08-31 Xerox Corporation Coated carrier
US6010812A (en) * 1998-08-26 2000-01-04 Xerox Corporation Coated carrier
US5935750A (en) * 1998-08-26 1999-08-10 Xerox Corporation Coated carrier
US6042981A (en) * 1998-08-26 2000-03-28 Xerox Corporation Coated carrier
US6355194B1 (en) * 1999-03-22 2002-03-12 Xerox Corporation Carrier pelletizing processes
US6037091A (en) * 1999-08-30 2000-03-14 Xerox Corporation Carrier with ferrocene containing polymer
US6051353A (en) * 1999-09-07 2000-04-18 Xerox Corporation Coated carriers
US6132917A (en) * 2000-03-29 2000-10-17 Xerox Corporation Coated carrier
US6251554B1 (en) 2000-03-29 2001-06-26 Xerox Corporation Coated carrier
US6358659B1 (en) 2000-08-17 2002-03-19 Xerox Corporation Coated carriers
US6391509B1 (en) 2000-08-17 2002-05-21 Xerox Corporation Coated carriers
US6511780B1 (en) 2001-07-30 2003-01-28 Xerox Corporation Carrier particles
US7452650B2 (en) 2005-01-26 2008-11-18 Xerox Corporation Coated carriers and processes thereof
US20060199094A1 (en) 2005-03-07 2006-09-07 Xerox Corporation Carrier and developer compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003975A (en) * 1958-11-26 1961-10-10 Myron A Coler Conductive plastic composition and method of making the same
US3196032A (en) * 1962-02-20 1965-07-20 Burroughs Corp Process for producing electrostatic ink powder
US3427258A (en) * 1965-11-12 1969-02-11 Owens Illinois Inc Electrostatic image developer powder composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173604A (en) * 1985-03-08 1986-10-15 Ricoh Kk Carrier particles for use in developers for developing latent electrostatic images

Also Published As

Publication number Publication date
DE1597887C3 (en) 1978-08-17
DE1597887B2 (en) 1977-12-15
NL6713689A (en) 1968-04-16
SE323583B (en) 1970-05-04
BE704918A (en) 1968-02-15
US3752666A (en) 1973-08-14
DE1597887A1 (en) 1970-10-01
US3533835A (en) 1970-10-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years