GB1204861A - Improvements in or relating to the development of electrostatic images - Google Patents

Improvements in or relating to the development of electrostatic images

Info

Publication number
GB1204861A
GB1204861A GB54419/67A GB5441967A GB1204861A GB 1204861 A GB1204861 A GB 1204861A GB 54419/67 A GB54419/67 A GB 54419/67A GB 5441967 A GB5441967 A GB 5441967A GB 1204861 A GB1204861 A GB 1204861A
Authority
GB
United Kingdom
Prior art keywords
coated
polystyrene
carrier
silver
toner
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
GB54419/67A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1204861A publication Critical patent/GB1204861A/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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

1,204,861. Cascade development. FUJI SHASHIN FILM K.K. Nov. 29, 1967 [Nov.29, 1966], No.54419/67. Heading G2H. Latent electrostatic images are developed by feeding a toner and its carrier, and a material having a smaller apparent density than and at least the same size as said carrier and having an electrically conductive surface, to form a mixture on the surface bearing the electrostatic image, and effecting vertical or horizontal movement of said surface to produce a conductive layer over a toner-carrier layer in contact with said surface. The conductive material may be (i) foamed polystyrene or glass beads coated with silver or aluminium (ii) hollow glass or plastic ball made of polystyrene or polyethylene coated with silver or copper (iii) foamed silver paste (iv) small lengths of aluminium tube (v) two hemispherical shells of aluminium welded to form a sphere see Fig. 4c (vi) phenoxy resin polystyrene, polyethylene, PVC, a polyamide or polymethyl methacrylate pellets coated with silver (vii) plastic tubes coated with copper or (viii) a pellet as in Fig.4d. The carrier may be glass, lead or copper coated with nitrocellulose and the toner powdered carbon and polystyrene. The image may be transferred.
GB54419/67A 1966-11-29 1967-11-29 Improvements in or relating to the development of electrostatic images Expired GB1204861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7819066 1966-11-29

Publications (1)

Publication Number Publication Date
GB1204861A true GB1204861A (en) 1970-09-09

Family

ID=13655049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54419/67A Expired GB1204861A (en) 1966-11-29 1967-11-29 Improvements in or relating to the development of electrostatic images

Country Status (5)

Country Link
US (1) US3607342A (en)
BE (1) BE707253A (en)
DE (1) DE1597848C3 (en)
FR (1) FR1555753A (en)
GB (1) GB1204861A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512403A (en) * 1994-08-05 1996-04-30 Eastman Kodak Company Mixture of carrier particles useful in electrographic developers
GB2462169A (en) * 2008-07-01 2010-02-03 Bonding Ltd De Thermoexpandable microspheres with conductive coating

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833364A (en) * 1968-11-18 1974-09-03 Xerox Corp Method of developing electrostatic image charge
US3770482A (en) * 1971-01-18 1973-11-06 Beatrice Foods Co Electrostatic coating method of applying multilayer coating
US3767578A (en) * 1971-06-10 1973-10-23 Xerox Corp Carrier material for electrostatographic developer
US4078930A (en) * 1975-10-28 1978-03-14 Xerox Corporation Developer compositions comprising toner and carrier
US4273847A (en) * 1976-07-30 1981-06-16 Epp Corp. Inks for pulsed electrical printing and methods of producing same
JPS5913732B2 (en) * 1977-07-05 1984-03-31 コニカ株式会社 Iron powder development carrier and its manufacturing method, developer and image forming method
US4413048A (en) * 1981-09-01 1983-11-01 Savin Corporation Developing composition for a latent electrostatic image for transfer of the developed image across a gap to a carrier sheet
JPS5866949A (en) * 1981-10-16 1983-04-21 Fuji Photo Film Co Ltd Capsulated toner
US5272037A (en) * 1989-01-13 1993-12-21 Minolta Camera Kabushiki Kaisha Polyolefinic resin-coated uneven carrier
US5093201A (en) * 1989-01-13 1992-03-03 Minolta Camera Kabushiki Kaisha Polyolefinic resin-coated uneven electrophotographic carrier particles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965573A (en) * 1958-05-02 1960-12-20 Haloid Xerox Inc Xerographic developer
US3202093A (en) * 1963-02-11 1965-08-24 Electrostatic Printing Corp Electrostatic printing
US3318697A (en) * 1964-04-28 1967-05-09 Minnesota Mining & Mfg Copy sheet having a layer of thermally rupturable hollow microcapsules on a conductive backing and the method of use
US3336906A (en) * 1965-06-09 1967-08-22 Fairchild Camera Instr Co Apparatus for immersion development
US3406062A (en) * 1965-06-09 1968-10-15 Fairchild Camera Instr Co Method for liquid development of electrostatic images using conductive particles as floating electrodes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512403A (en) * 1994-08-05 1996-04-30 Eastman Kodak Company Mixture of carrier particles useful in electrographic developers
GB2462169A (en) * 2008-07-01 2010-02-03 Bonding Ltd De Thermoexpandable microspheres with conductive coating

Also Published As

Publication number Publication date
FR1555753A (en) 1969-01-31
US3607342A (en) 1971-09-21
DE1597848B2 (en) 1974-02-28
BE707253A (en) 1968-04-01
DE1597848C3 (en) 1974-09-26
DE1597848A1 (en) 1970-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee