GB1455492A - Electropphotography - Google Patents

Electropphotography

Info

Publication number
GB1455492A
GB1455492A GB1800874A GB1800874A GB1455492A GB 1455492 A GB1455492 A GB 1455492A GB 1800874 A GB1800874 A GB 1800874A GB 1800874 A GB1800874 A GB 1800874A GB 1455492 A GB1455492 A GB 1455492A
Authority
GB
United Kingdom
Prior art keywords
powders
conductive
photo
april
electrically conductive
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
GB1800874A
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 GB1455492A publication Critical patent/GB1455492A/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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/34—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
    • G03G15/342—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by forming a uniform powder layer and then removing the non-image areas
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • 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
    • 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
    • G03G9/0821—Developers with toner particles characterised by physical parameters
    • G03G9/0823—Electric parameters
    • 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0926—Colouring agents for toner particles characterised by physical or chemical properties

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1455492 Electro-photography FUJI PHOTO FILM CO Ltd 24 April 1974 [24 April 1973] 18008/74 Heading G2H A photo-conductive member, consisting of a substrate and two powders of opposite charge, is imaged when one of the powders responds to light 20 by becoming electrically conductive so that the charge on it cancels and is cancelled by the other to form uncharged areas 21. The powder of the uncharged areas is then removed by an air blast. One of the powders may be electrically conductive and the other photo-conductive, or both may be photo-conductive, one having a higher sensitivity than the other. Three or more photoconductive powders may be used to form a coloured image. The developed image may be fixed by a solvent, or transferred to a copy member.
GB1800874A 1973-04-24 1974-04-24 Electropphotography Expired GB1455492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4640073A JPS49133033A (en) 1973-04-24 1973-04-24

Publications (1)

Publication Number Publication Date
GB1455492A true GB1455492A (en) 1976-11-10

Family

ID=12746090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1800874A Expired GB1455492A (en) 1973-04-24 1974-04-24 Electropphotography

Country Status (5)

Country Link
JP (1) JPS49133033A (en)
DE (1) DE2419873A1 (en)
FR (1) FR2227566B1 (en)
GB (1) GB1455492A (en)
NL (1) NL7405502A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2347712A1 (en) * 1975-11-12 1977-11-04 Matsushita Electric Ind Co Ltd IMAGE FORMATION PROCESS AND APPARATUS AND PARTICLES USED FOR THE IMPLEMENTATION OF THIS PROCESS

Also Published As

Publication number Publication date
FR2227566B1 (en) 1978-03-24
NL7405502A (en) 1974-10-28
JPS49133033A (en) 1974-12-20
FR2227566A1 (en) 1974-11-22
DE2419873A1 (en) 1974-11-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee