GB1330450A - Electrophotographic copying process - Google Patents

Electrophotographic copying process

Info

Publication number
GB1330450A
GB1330450A GB1728273A GB1728270A GB1330450A GB 1330450 A GB1330450 A GB 1330450A GB 1728273 A GB1728273 A GB 1728273A GB 1728270 A GB1728270 A GB 1728270A GB 1330450 A GB1330450 A GB 1330450A
Authority
GB
United Kingdom
Prior art keywords
medium
formula
formulae
electro
oxide
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
GB1728273A
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.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Itek Corp
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 Itek Corp filed Critical Itek Corp
Priority to DE19712117419 priority Critical patent/DE2117419A1/en
Publication of GB1330450A publication Critical patent/GB1330450A/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
    • G03G5/02—Charge-receiving layers
    • G03G5/026—Layers in which during the irradiation a chemical reaction occurs whereby electrically conductive patterns are formed in the layers, e.g. for chemixerography

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

1330450 Electro-photographic processes ITEK CORP 19 Aug 1970 [3 Sept 1969] 17282/73 Divided out of 1328374 Heading G2H In an electro-photographic process comprising exposing a copy medium to an image, electrostatically charging the medium and developing a visible image on the medium, the medium comprises a support with an organic photo-sensitive material which undergoes an irreversible chemical change under actinic radiation to permanently alter its conductivity, the material comprising (a) an aryl substituted pyrylium salt of formula (b) a triphenyl-methane dye of formula or (c) a phenyl substituted inderone oxide of formula In the formulae, a is from 0 to the number of replacable hydrogen atoms on the aryl nucleus; Y is a substituent radical preferably alkyl, alkoxy, amino, nitro or halo; A in an anionic function; M is or Z is an ethylenically unsaturated aliphatic chain of 2 to 4 carbon atoms and X is the anion of an acid such as HCN, HC1, HBr, HI, or HSCN. In an example baryta paper is coated with 2, 4, 6-triphenylpyrylium 3-oxide and a resin. Many resins, supports and examples of compounds of formulae I to III are given. Multiple copies may be taken from the exposed medium by repeating the charging and developing steps.
GB1728273A 1969-09-03 1970-04-10 Electrophotographic copying process Expired GB1330450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712117419 DE2117419A1 (en) 1970-04-10 1971-04-08 Lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US855026A US3879197A (en) 1969-09-03 1969-09-03 Electrophotographic copying process

Publications (1)

Publication Number Publication Date
GB1330450A true GB1330450A (en) 1973-09-19

Family

ID=25320151

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1728273A Expired GB1330450A (en) 1969-09-03 1970-04-10 Electrophotographic copying process
GB4000370A Expired GB1328374A (en) 1969-09-03 1970-08-19 Electrophotographic copying process

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB4000370A Expired GB1328374A (en) 1969-09-03 1970-08-19 Electrophotographic copying process

Country Status (5)

Country Link
US (1) US3879197A (en)
JP (1) JPS497013B1 (en)
DE (1) DE2043769A1 (en)
FR (1) FR2060893A5 (en)
GB (2) GB1330450A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913354B1 (en) * 1970-12-19 1974-03-30
GB1488867A (en) * 1974-02-22 1977-10-12 Agfa Gevaert Production of a permanent conductivity pattern
JPS50115830A (en) * 1974-02-22 1975-09-10
US4126456A (en) * 1975-05-29 1978-11-21 International Business Machines Corporation Visual image recording device
DE2635731C2 (en) * 1976-08-09 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Device for an electrophotographic process
JPS5341230A (en) * 1976-09-28 1978-04-14 Fuji Xerox Co Ltd Photosensitive material for electrophotography
JPS6011348B2 (en) * 1976-09-30 1985-03-25 富士ゼロツクス株式会社 electrophotographic photoreceptor
US4089684A (en) * 1977-01-31 1978-05-16 Xerox Corporation Imaging method utilizing the chemical reactivity of donor-acceptor mixtures
JPS6025781B2 (en) * 1977-03-11 1985-06-20 富士ゼロックス株式会社 Photosensitive materials for electrophotography
JPS53148437A (en) * 1977-05-31 1978-12-25 Ricoh Co Ltd Copying method for a large number of copied sheets
DE3856556D1 (en) * 1987-03-18 2003-07-17 Dainippon Printing Co Ltd CIRCUIT ARRANGEMENT WITH CONVERSION LAYER WITHOUT MEMORY EFFECT
US5064740A (en) * 1989-05-12 1991-11-12 E. I. Du Pont De Nemours And Company Photohardenable electrostatic element with improved environmental latitude
US5221590A (en) * 1991-04-15 1993-06-22 Eastman Kodak Company Photoelectrographic imaging with dyes or pigments to effect a color density or hue shift
US5288582A (en) * 1991-07-29 1994-02-22 Eastman Kodak Company Photoelectrographic method for printing
US5240800A (en) * 1991-07-29 1993-08-31 Eastman Kodak Company Near-infrared radiation sensitive photoelectrographic master and imaging method
EP0557501A1 (en) * 1991-09-16 1993-09-01 Eastman Kodak Company Optical recording with near-infrared dyes to effect bleaching
US5204198A (en) * 1991-10-28 1993-04-20 Eastman Kodak Company Photoelectrographic elements utilizing nonionic sulfonic acid photogenerators
US6243551B1 (en) * 1999-01-07 2001-06-05 Elfotek Ltd. Electrophotographic copying method and apparatus
CN109153871A (en) * 2016-06-16 2019-01-04 默克专利有限公司 The preparation of organic functional material

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO95057A (en) * 1957-09-07
US3081165A (en) * 1957-09-09 1963-03-12 Xerox Corp Xerographic chemography
NL128039C (en) * 1959-07-01 1969-08-15
NL256340A (en) * 1959-09-28
NL259795A (en) * 1960-01-08
US3287122A (en) * 1961-07-24 1966-11-22 Azoplate Corp Process for the sensitization of photoconductors
US3441410A (en) * 1965-07-01 1969-04-29 Xerox Corp Deformation imaging processes using electrically photosensitive photochromic materials
US3429701A (en) * 1965-10-24 1969-02-25 Ibm Multiple copy electrophotographic device utilizing a charge pattern at the interface of a photoconductive layer and a dielectric layer
US3620748A (en) * 1966-01-07 1971-11-16 Horizons Research Inc N-vinyl amine/halogen liberating composition sensitized with 9-vinyl carbazoles or polyacenes, or transannular peroxides of polyacenes
US3600169A (en) * 1966-11-25 1971-08-17 Bard Lab Inc Photochemical electrostatic copying sheet and process using free radicals

Also Published As

Publication number Publication date
FR2060893A5 (en) 1971-06-18
GB1328374A (en) 1973-08-30
DE2043769A1 (en) 1971-03-04
JPS497013B1 (en) 1974-02-18
US3879197A (en) 1975-04-22

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed