GB1025199A - Improvements in or relating to xerographic transfer platen - Google Patents

Improvements in or relating to xerographic transfer platen

Info

Publication number
GB1025199A
GB1025199A GB1524/64A GB152463A GB1025199A GB 1025199 A GB1025199 A GB 1025199A GB 1524/64 A GB1524/64 A GB 1524/64A GB 152463 A GB152463 A GB 152463A GB 1025199 A GB1025199 A GB 1025199A
Authority
GB
United Kingdom
Prior art keywords
sheet
conductors
dielectric
conductive
tone
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
GB1524/64A
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 GB1025199A publication Critical patent/GB1025199A/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
    • 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
    • G03G15/18—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a charge pattern

Abstract

1,025,199. Electrophotographic processes. RANK-XEROX Ltd. Jan. 14,1963 [Jan.12, 1962], No. 1524/63. Heading G2H. In a charge transfer process, charge receptive half-tone dots are formed over the surface of the charge receiving sheet 14, in proximity to the tips of elongated conductors 16, by contacting the other ends of the conductors with conductive roller 17 which is connected to a voltage source 51. A continuous tone electrostatic latent image, produced by conventional xerographic methods on photo-conductive layer 13, is accordingly transferred as a half-tone image to sheet 14, developed by cascade at 46 and the developed image transferred under corona discharge at 47. A conductive wiper means at 48 prepares sheet 14 for re-use. Suitable dielectric materials for sheet 14 include cellulose acetate, polystyrene, polytetrafluoroethylene and polyethylene terephthalate. Conductors 16 may be fine wires or ferromagnetic, ferrous or ferrite particles. The latter may be incorporated in a molten layer of dielectric material which is allowed to set under the influence of a transverse particle orienting magnetic field. One side of the layer may be abraded to improve the electrical contact with roller 17 or an alternative contact means. In another form, a sheet of dielectric is pierced with many fine holes, by means of a spark discharge, the holes filled with electrolyte and a film of dielectric applied to one side of the sheet. Reference is made to the use of an A.C. or D.C. corona discharge device in place of conductive roller 17.
GB1524/64A 1962-01-12 1963-01-14 Improvements in or relating to xerographic transfer platen Expired GB1025199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US165891A US3281857A (en) 1962-01-12 1962-01-12 Xerographic transfer platen

Publications (1)

Publication Number Publication Date
GB1025199A true GB1025199A (en) 1966-04-06

Family

ID=22600899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1524/64A Expired GB1025199A (en) 1962-01-12 1963-01-14 Improvements in or relating to xerographic transfer platen

Country Status (2)

Country Link
US (1) US3281857A (en)
GB (1) GB1025199A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508823A (en) * 1962-04-04 1970-04-28 Xerox Corp Duplicating apparatus
US3512966A (en) * 1965-07-26 1970-05-19 Ibm Process of electrophotographic recording employing persistent organic photoconductive compositions
US3427242A (en) * 1966-04-18 1969-02-11 Xerox Corp Apparatus for continuous photoelectrophoretic imaging
US3477846A (en) * 1967-05-01 1969-11-11 Gaf Corp Xerographic charge transfer process
US3795442A (en) * 1968-01-26 1974-03-05 T Kimura Electroprinting device
US3532494A (en) * 1969-09-08 1970-10-06 Gopal C Bhagat Solid area development in xerography employing an insulating screen in the charging step
US3702482A (en) * 1970-12-23 1972-11-07 Xerox Corp Bias roll transfer
US3797930A (en) * 1971-05-18 1974-03-19 Minolta Camera Kk Electrophotographic copier
US3941593A (en) * 1971-09-12 1976-03-02 William Alan Stewart Butement Electro-photographic method and element
US4060321A (en) * 1971-12-09 1977-11-29 William Alan Stewart Butement Electro-photographic element
US4056390A (en) * 1972-02-17 1977-11-01 Minolta Camera Kabushiki Kaisha Process for transferring electrostatic latent images
FR2210302A5 (en) * 1972-12-08 1974-07-05 Cellophane Sa
US4168975A (en) * 1976-06-17 1979-09-25 Repco Limited Electrophotographic image receiving plates

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992425A (en) * 1945-10-12 1961-07-11 Du Pont Nondirectional, metal-backed, electromagnetic radiation-absorptive films
US2951247A (en) * 1946-02-19 1960-08-30 Halpern Otto Isotropic absorbing layers
US2584441A (en) * 1946-05-03 1952-02-05 Rca Corp Viewing screen
US2796359A (en) * 1952-07-05 1957-06-18 Audio Devices Inc Production of magnetic sound recording tape
GB755486A (en) * 1953-09-15 1956-08-22 Horizons Inc Improvements in electrostatic printing
US2862815A (en) * 1953-10-01 1958-12-02 Rca Corp Electrophotographic member
US2916399A (en) * 1954-07-16 1959-12-08 Lechler Paul Fa Heat treatment of protective coatings
US2889758A (en) * 1954-12-24 1959-06-09 Ibm Electrophotographic printer
US3043684A (en) * 1955-01-26 1962-07-10 Gen Dynamics Corp Electrostatic printing
US3045587A (en) * 1957-06-06 1962-07-24 Xerox Corp Electrostatic printing apparatus for forming multiple copies
US3015304A (en) * 1957-10-02 1962-01-02 Xerox Corp Electrostatic image reproduction
US3037478A (en) * 1957-10-23 1962-06-05 American Photocopy Equip Co Apparatus for developing electrophotographic sheet

Also Published As

Publication number Publication date
US3281857A (en) 1966-10-25

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