GB1490898A - Document screen and electrophotographic process utilizing same - Google Patents

Document screen and electrophotographic process utilizing same

Info

Publication number
GB1490898A
GB1490898A GB1896075A GB1896075A GB1490898A GB 1490898 A GB1490898 A GB 1490898A GB 1896075 A GB1896075 A GB 1896075A GB 1896075 A GB1896075 A GB 1896075A GB 1490898 A GB1490898 A GB 1490898A
Authority
GB
United Kingdom
Prior art keywords
electrophotographic process
process utilizing
utilizing same
document screen
document
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
GB1896075A
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 Corp
Original Assignee
Xerox 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
Priority claimed from US05/467,326 external-priority patent/US4108654A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB1490898A publication Critical patent/GB1490898A/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
    • G03G15/04—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
    • G03G15/04027—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 and forming half-tone image
    • 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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/011—Details of unit for exposing
    • G03G15/0115—Details of unit for exposing and forming a half-tone image

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Electrophotography (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
GB1896075A 1974-05-06 1975-05-06 Document screen and electrophotographic process utilizing same Expired GB1490898A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46716174A 1974-05-06 1974-05-06
US05/467,326 US4108654A (en) 1974-05-06 1974-05-06 Color electrophotographic process employing a document screen

Publications (1)

Publication Number Publication Date
GB1490898A true GB1490898A (en) 1977-11-02

Family

ID=27041944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1896075A Expired GB1490898A (en) 1974-05-06 1975-05-06 Document screen and electrophotographic process utilizing same

Country Status (6)

Country Link
JP (1) JPS5133632A (en)
CA (1) CA1062762A (en)
DE (1) DE2520009A1 (en)
FR (1) FR2270624B1 (en)
GB (1) GB1490898A (en)
NL (1) NL7505039A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231747A (en) * 1975-09-05 1977-03-10 Hitachi Ltd Screen for color copying machine
JPH0731427B2 (en) * 1986-04-25 1995-04-10 株式会社リコー Electrostatic transfer recording device

Also Published As

Publication number Publication date
NL7505039A (en) 1975-07-31
CA1062762A (en) 1979-09-18
FR2270624B1 (en) 1978-08-25
DE2520009A1 (en) 1975-11-20
FR2270624A1 (en) 1975-12-05
JPS5133632A (en) 1976-03-22

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Legal Events

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