DE3062716D1 - Electrophotographic copier with variable original document to image size ratio - Google Patents

Electrophotographic copier with variable original document to image size ratio

Info

Publication number
DE3062716D1
DE3062716D1 DE8080103074T DE3062716T DE3062716D1 DE 3062716 D1 DE3062716 D1 DE 3062716D1 DE 8080103074 T DE8080103074 T DE 8080103074T DE 3062716 T DE3062716 T DE 3062716T DE 3062716 D1 DE3062716 D1 DE 3062716D1
Authority
DE
Germany
Prior art keywords
original document
image size
size ratio
electrophotographic copier
variable original
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
DE8080103074T
Other languages
English (en)
Inventor
Edwin Langford Libby
Randall Adrian Maddox
Douglas James Roberts
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3062716D1 publication Critical patent/DE3062716D1/de
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
    • G03G15/041—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 with variable magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
DE8080103074T 1979-06-21 1980-06-03 Electrophotographic copier with variable original document to image size ratio Expired DE3062716D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5084979A 1979-06-21 1979-06-21

Publications (1)

Publication Number Publication Date
DE3062716D1 true DE3062716D1 (en) 1983-05-19

Family

ID=21967863

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080103074T Expired DE3062716D1 (en) 1979-06-21 1980-06-03 Electrophotographic copier with variable original document to image size ratio

Country Status (2)

Country Link
EP (1) EP0022175B2 (de)
DE (1) DE3062716D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964810A (ja) * 1982-10-05 1984-04-12 Canon Inc 変倍投影装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1097439A (fr) * 1954-03-29 1955-07-05 Verrerie Scient Perfectionnements aux machines à reproduire les plans
GB1079231A (en) * 1963-10-14 1967-08-16 Hall Harding Ltd Improvements in or relating to photographic reproducing apparatus
FR2099191A5 (de) * 1970-06-23 1972-03-10 Ibm
US3720465A (en) * 1970-11-20 1973-03-13 Ibm Electrophotographic apparatus with synchronized document illumination and scanning feature
DE2553665C2 (de) * 1975-11-28 1984-10-18 Agfa-Gevaert Ag, 5090 Leverkusen Bildfeldblende in einem Kopiergerät
US4057342A (en) * 1976-05-27 1977-11-08 Xerox Corporation Illumination slit for a reproducing machine
GB1525218A (en) * 1976-09-07 1978-09-20 Ibm Electrophotographic copying machine
JPS5455821U (de) * 1977-09-27 1979-04-18

Also Published As

Publication number Publication date
EP0022175B1 (de) 1983-04-13
EP0022175A1 (de) 1981-01-14
EP0022175B2 (de) 1985-10-09

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Legal Events

Date Code Title Description
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee