GB1165407A - Electrophotography - Google Patents

Electrophotography

Info

Publication number
GB1165407A
GB1165407A GB1510969A GB1510969A GB1165407A GB 1165407 A GB1165407 A GB 1165407A GB 1510969 A GB1510969 A GB 1510969A GB 1510969 A GB1510969 A GB 1510969A GB 1165407 A GB1165407 A GB 1165407A
Authority
GB
United Kingdom
Prior art keywords
layer
conductive layer
resin
photo
insulating layer
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
GB1510969A
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.)
Canon Inc
Original Assignee
Canon Camera Co Inc
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 Canon Camera Co Inc filed Critical Canon Camera Co Inc
Publication of GB1165407A publication Critical patent/GB1165407A/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
    • G03G15/226—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 where the image is formed on a dielectric layer covering the photoconductive layer
    • 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/045—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • 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
    • 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
    • G03G21/0035—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 using a brush; Details of cleaning brushes, e.g. fibre density
    • 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
    • G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
    • G03G5/087—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and being incorporated in an organic bonding material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1,165,407. Electro-photographic materials. CANON CAMERA CO. Inc. 12 July, 1966 [12 July, 1965; 28 Oct., 1965; 1 Dec., 1965; 23 Feb., 1966], No. 15109/69. Divided out of 1,165,405. Heading H1K. An electro-photographic member consists of a conductive layer, a photo-conductive layer, and an insulating layer. Either or both the conductive layer and the insulating layer are translucent. The member is such that upon the application to the insulating layer of a positive or negative charge, according to whether the photoconductive layer is N-type or P-type respectively, charges of opposite polarity are even in the absence of activating radiation injected into the photo-conductive layer from the conductive layer and bound in the region of the interface between the photo-conductive layer and the insulating layer, and is such that the insulating layer can support said charges without breakdown. In use (as claimed in co-pending Specification 1,165,405) the member is charged, then simultaneously image-wise exposed and reverse charged, and then (preferably) uniformly exposed to increase contrast. Normal dry or wet (particle suspension) development is used and the image thus formed is transferred to a receiving member by known processes. Suitable photo-conductors are cadmium sulphide and cadmium selenide (each of which may be doped with copper), zinc oxide (which may be doped with lithium), both amorphous and metallic forms of selenium, titania, selenium telluride (SeTe), lead monoxide, sulphur, anthracene, and carbazole. A binder may be present. The conductive layer may be of tin, copper, aluminium, aluminium-paper laminate, damp paper or conductive paint. The insulating layer may be of fluorethylene resin, polycarbonate resin, polyethylene, cellulose acetate, or of polyester resin: it is preferably 10-50 Á thick and may be preformed and the resin is bonded to the photoconductive layer. A member possessing at the same time high resolution and high sensitivity may have a divided photo-conductive layer; the sub layer nearest the insulating layer contains finely divided photo-conductor and that nearest the conductive layer contains coarse photoconductive granules. Specific embodiments are :-(1) aluminium bearing a layer of zinc oxide, Rose Bengal, and silicone resin and having a polyester film glued to the layer with epoxy resin; (2) aluminium bearing a layer of copperdoped cadmium sulphide in an acrylic binder and a superposed layer of fluorethylene resin; (3) a layer containing zinc oxide, bromophenol blue, Rose Bengal, fluorescein, copoly (styrenebutadiene), and chlorinated rubber, and having on one side a polyester film and on the other side a layer of conductive paint; (4) aluminium bearing a first layer of coarse cadmium sulphide particles in a copolymer of vinyl acetate and vinyl chloride, a second layer of fine zinc oxide particles with Rose Bengal in a silicone resin, and an adhered polyester film. A developed member may be cleaned of pigment particles after image transfer by subjecting the member to an A.C. discharge and then brushing the surface.
GB1510969A 1965-07-12 1966-07-12 Electrophotography Expired GB1165407A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4163965 1965-07-12
JP6578465 1965-10-28
JP40073379 1965-12-01
JP1091566 1966-02-23

Publications (1)

Publication Number Publication Date
GB1165407A true GB1165407A (en) 1969-10-01

Family

ID=27455495

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1510969A Expired GB1165407A (en) 1965-07-12 1966-07-12 Electrophotography
GB3132966A Expired GB1165405A (en) 1965-07-12 1966-07-12 Electrophotography

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3132966A Expired GB1165405A (en) 1965-07-12 1966-07-12 Electrophotography

Country Status (1)

Country Link
GB (2) GB1165407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004404A2 (en) * 1978-03-29 1979-10-03 Océ-Nederland B.V. Electrophotographic process
US7687216B2 (en) 2004-06-18 2010-03-30 Sharp Kabushiki Kaisha Two-component developer and two-component developing apparatus using the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008881C2 (en) 1979-03-09 1993-01-28 Canon K.K., Tokio/Tokyo Developing method with developer made from insulating magnetic toner particles
JPS6036582B2 (en) * 1979-05-08 1985-08-21 キヤノン株式会社 Toner for development
DE3027121A1 (en) * 1979-07-17 1981-02-05 Canon Kk METHOD FOR FIXING BY MEANS OF A MELTING ROLL
JPS58189646A (en) * 1982-04-01 1983-11-05 Canon Inc Magnetic toner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004404A2 (en) * 1978-03-29 1979-10-03 Océ-Nederland B.V. Electrophotographic process
EP0004404A3 (en) * 1978-03-29 1979-10-31 Oce-Van Der Grinten N.V. Electrophotographic process
US7687216B2 (en) 2004-06-18 2010-03-30 Sharp Kabushiki Kaisha Two-component developer and two-component developing apparatus using the same

Also Published As

Publication number Publication date
GB1165405A (en) 1969-10-01

Similar Documents

Publication Publication Date Title
US3953207A (en) Composite layered photoreceptor
US4071361A (en) Electrophotographic process and apparatus
US3666363A (en) Electrophotographic process and apparatus
US3268331A (en) Persistent internal polarization systems
US3877935A (en) Novel xerographic plate containing photoinjecting polynuclear quinone pigments
US3928034A (en) Electron transport layer over an inorganic photoconductive layer
US3801317A (en) Electrophotographic plate
US3894868A (en) Electron transport binder structure
GB1165407A (en) Electrophotography
GB1165406A (en) Electrophotography
JPS6479752A (en) Organic electrophotographic sensitive body
GB1523137A (en) Method for the preparation of electrostatographic photoreceptor members
JPS6340310B2 (en)
US4254199A (en) Electrophotographic imaging method having a double charging sequence
EP0130787B1 (en) An electrophotographic method for the formation of two-colored images
GB1440553A (en) Photoconductive toner for electrophotography
GB1403290A (en) Photosensitive plate for use in electrophotography
JPS561059A (en) Electrophotographic receptor
JPS5919335B2 (en) electrophotography
GB1165409A (en) Electrophotography
JPS5318890B2 (en)
US3837853A (en) Electrophotographic method of imaging with an element containing an amorphous semiconductor
ES415609A1 (en) Electrophotographic process
US4064514A (en) Portable camera
SU463275A3 (en) Electrophotographic element

Legal Events

Date Code Title Description
PS Patent sealed
433G Case decided by the comptroller ** application refused (sect. 33/1949)
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PE Patent expired