GB1029199A - Dark decay controlled xerography - Google Patents

Dark decay controlled xerography

Info

Publication number
GB1029199A
GB1029199A GB37065/63A GB3706563A GB1029199A GB 1029199 A GB1029199 A GB 1029199A GB 37065/63 A GB37065/63 A GB 37065/63A GB 3706563 A GB3706563 A GB 3706563A GB 1029199 A GB1029199 A GB 1029199A
Authority
GB
United Kingdom
Prior art keywords
pattern
plate
areas
exposure
discharge
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
GB37065/63A
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 GB1029199A publication Critical patent/GB1029199A/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
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers
    • 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
    • G03G5/082—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and not being incorporated in a bonding material, e.g. vacuum deposited
    • G03G5/08207—Selenium-based
    • 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
    • G03G5/10—Bases for charge-receiving or other layers
    • 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
    • G03G5/10—Bases for charge-receiving or other layers
    • G03G5/102—Bases for charge-receiving or other layers consisting of or comprising metals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1,029,199. Electrophotographic plates. RANK XEROX Ltd. Sept. 20, 1963 [Oct. 1, 1962], No. 37065/63. Heading H1K. A xerographic plate comprises a fine pattern of areas with different rates of dark decay. As shown, a conductive substrate 12, for example of stainless steel, copper, brass, abraded, cleaned or chromated aluminium, or conductive glass, plastic or paper, is covered with a pattern 13 of insulating material. for example of aluminium oxide, copper oxide, oxidized brass, polystyrene, or organic. photo-resist or acid resist materials. A layer 14 of a photoconductive insulator, for example cadmium sulphide, or selenium, is deposited on the plate by vacuum evaporation or casting. The insulating pattern 13 may be produced by oxidizing and then engraving or etching the surface of an aluminium plate, or by mixing polystyrene with a solvent and printing the pattern on to the substrate. The pattern 13 may be very thin so that tunnelling occurs on exposure to radiation to allow the discharge of the exposed areas of the photoconductive insulator 14. Alternatively the pattern 13 may be thick so that it acts as an insulator on exposure to radiation, the adjacent non-insulated areas allowing the discharge of exposed areas. The plate is charged, exposed and developed as usual except that a time delay is provided somewhere between charging and development to allow the parts of the plate with a high rate of dark decay to discharge the photoconductive insulating layer in a fine pattern so that on exposure any large areas of charge are broken up thus improving the reproduction of continuous tone originals. The insulating pattern 13 may be in the form of dots of regular or irregular shape, strips, or a continuous layer punched with holes.
GB37065/63A 1962-10-01 1963-09-20 Dark decay controlled xerography Expired GB1029199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US227487A US3341326A (en) 1962-10-01 1962-10-01 Dark decay controlled xerography

Publications (1)

Publication Number Publication Date
GB1029199A true GB1029199A (en) 1966-05-11

Family

ID=22853294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37065/63A Expired GB1029199A (en) 1962-10-01 1963-09-20 Dark decay controlled xerography

Country Status (4)

Country Link
US (1) US3341326A (en)
DE (1) DE1497069A1 (en)
GB (1) GB1029199A (en)
NL (1) NL298605A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607258A (en) * 1966-01-06 1971-09-21 Xerox Corp Electrophotographic plate and process
DE3014449C2 (en) * 1979-04-16 1986-03-27 Eastman Kodak Co., Rochester, N.Y. Electrographic copying process
NL8400922A (en) * 1984-03-23 1985-10-16 Oce Nederland Bv METHOD FOR MAKING COPIES.
US5324608A (en) * 1992-11-23 1994-06-28 Mitsubishi Kasei America, Inc. Photoconductor drum, having a non-conductive layer, with an area of electrical contact and method of manufacturing the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599542A (en) * 1948-03-23 1952-06-10 Chester F Carlson Electrophotographic plate
US2543051A (en) * 1948-12-06 1951-02-27 Haloid Co Method of charging and exposing electrophotographic plates
US2901348A (en) * 1953-03-17 1959-08-25 Haloid Xerox Inc Radiation sensitive photoconductive member
US2853383A (en) * 1953-10-02 1958-09-23 Paul H Keck Method and apparatus for amplifying photoelectric currents
US2844543A (en) * 1955-03-18 1958-07-22 Horizons Inc Transparent photoconductive composition
US2917385A (en) * 1955-08-26 1959-12-15 Haloid Xerox Inc Reflex xerography
US2881340A (en) * 1956-03-02 1959-04-07 Rca Corp Photoconductive television pickup tube
US3005707A (en) * 1956-04-16 1961-10-24 Leonard E Ravich Devices exhibiting persistent internal polarization and methods of utilizing the same
US3031572A (en) * 1959-11-05 1962-04-24 Charles E Ryan Infrared xerography
DE1175985B (en) * 1959-11-05 1964-08-13 Agfa Ag Process for making electro-photographic images
NL256772A (en) * 1960-10-12 1964-04-10

Also Published As

Publication number Publication date
DE1497069A1 (en) 1969-05-08
NL298605A (en)
US3341326A (en) 1967-09-12

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