GB1268130A - Photo-reproduction - Google Patents

Photo-reproduction

Info

Publication number
GB1268130A
GB1268130A GB63045/69A GB6304569A GB1268130A GB 1268130 A GB1268130 A GB 1268130A GB 63045/69 A GB63045/69 A GB 63045/69A GB 6304569 A GB6304569 A GB 6304569A GB 1268130 A GB1268130 A GB 1268130A
Authority
GB
United Kingdom
Prior art keywords
reproduction
electro
printed
photo
secondary material
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
GB63045/69A
Inventor
Lawrence Robert Bortolotti
Howard Kenneth Absler
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.)
Uarco Inc
Original Assignee
Uarco 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 Uarco Inc filed Critical Uarco Inc
Publication of GB1268130A publication Critical patent/GB1268130A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04Preventing copies being made of an original
    • G03G21/043Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00Electrographic processes using a charge pattern
    • G03G13/04Exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Printing Methods (AREA)

Abstract

1,268,130. Electro-photography. UARCO Inc. Dec.29, 1969 [Feb.12, 1969], No.63045/69. Heading G2H. In a method of suppressing reproduction of secondary material on a master or a copy sheet when reproducing primary material printed in black by an electro-photographic method, the secondary material is printed in transparent ink which is substantially completely transparent to the light used in the copying process.
GB63045/69A 1969-02-12 1969-12-29 Photo-reproduction Expired GB1268130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79874869A 1969-02-12 1969-02-12

Publications (1)

Publication Number Publication Date
GB1268130A true GB1268130A (en) 1972-03-22

Family

ID=25174164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB63045/69A Expired GB1268130A (en) 1969-02-12 1969-12-29 Photo-reproduction

Country Status (6)

Country Link
US (1) US3603681A (en)
BE (1) BE743149A (en)
DE (1) DE2004868A1 (en)
FR (1) FR2033955A5 (en)
GB (1) GB1268130A (en)
SE (1) SE358486B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852088A (en) * 1972-03-20 1974-12-03 Ibm Security document system and method
US3807852A (en) * 1973-01-15 1974-04-30 Unitax Inc Forms which are intended to be reproduced on a copying machine
US3995887A (en) * 1975-04-07 1976-12-07 E. D. Bullard Company Method and system for control of multiple inventories
US4227719A (en) * 1978-09-20 1980-10-14 Burroughs Corporation Protection system for documents
FR2503890A1 (en) * 1979-09-17 1982-10-15 Auken John Van Multi-colour anti-copying system for e.g. xerographic copier - uses pre-selected background and image colours for colouring original document to prevent copying
US20050142468A1 (en) * 2003-12-24 2005-06-30 Eastman Kodak Company Printing system, process, and product with a variable pantograph

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1216695A (en) * 1915-02-02 1917-02-20 Robert John Method of taking moving pictures.

Also Published As

Publication number Publication date
FR2033955A5 (en) 1970-12-04
US3603681A (en) 1971-09-07
DE2004868A1 (en) 1970-09-24
SE358486B (en) 1973-07-30
BE743149A (en) 1970-05-14

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