DE2949338A1 - Vorrichtung zum veraendern der kopiervergroesserung - Google Patents

Vorrichtung zum veraendern der kopiervergroesserung

Info

Publication number
DE2949338A1
DE2949338A1 DE2949338A DE2949338A DE2949338A1 DE 2949338 A1 DE2949338 A1 DE 2949338A1 DE 2949338 A DE2949338 A DE 2949338A DE 2949338 A DE2949338 A DE 2949338A DE 2949338 A1 DE2949338 A1 DE 2949338A1
Authority
DE
Germany
Prior art keywords
changing
copy enlargement
enlargement
copy
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.)
Granted
Application number
DE2949338A
Other languages
English (en)
Other versions
DE2949338C2 (de
Inventor
Tadayuki Kitajima
Yoshikuni Tohyama
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.)
Canon Inc
Original Assignee
Canon 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
Priority claimed from JP15176978A external-priority patent/JPS5577763A/ja
Priority claimed from JP15176878A external-priority patent/JPS5577762A/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE2949338A1 publication Critical patent/DE2949338A1/de
Application granted granted Critical
Publication of DE2949338C2 publication Critical patent/DE2949338C2/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure
    • G03B27/526—Projection optics for slit exposure in which the projection optics move
    • 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)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
DE2949338A 1978-12-08 1979-12-07 Vorrichtung zum Verändern des Kopiermaßstabs Expired DE2949338C2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15176978A JPS5577763A (en) 1978-12-08 1978-12-08 Copy magnification varying device
JP15176878A JPS5577762A (en) 1978-12-08 1978-12-08 Copy magnification varying device

Publications (2)

Publication Number Publication Date
DE2949338A1 true DE2949338A1 (de) 1980-06-26
DE2949338C2 DE2949338C2 (de) 1986-06-19

Family

ID=26480903

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2949338A Expired DE2949338C2 (de) 1978-12-08 1979-12-07 Vorrichtung zum Verändern des Kopiermaßstabs

Country Status (2)

Country Link
US (1) US4323308A (de)
DE (1) DE2949338C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093307A1 (de) * 1982-04-20 1983-11-09 Mita Industrial Co. Ltd. Elektrostatischer Kopierapparat

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521100A (en) * 1982-06-28 1985-06-04 Canon Kabushiki Kaisha Variable magnification image forming apparatus
JPS5919935A (ja) * 1982-07-26 1984-02-01 Fuji Xerox Co Ltd 複写機用光学系制御装置
JPS5999429A (ja) * 1982-11-30 1984-06-08 Mita Ind Co Ltd 可変倍率静電複写機
JPS60250339A (ja) * 1984-05-25 1985-12-11 Minolta Camera Co Ltd 複写機の変倍駆動制御方法
JPH01107275A (ja) * 1987-10-21 1989-04-25 Sharp Corp 変倍複写機
JPH01182867A (ja) * 1988-01-14 1989-07-20 Toshiba Corp 画像形成装置
US5415961A (en) * 1992-09-29 1995-05-16 Xerox Corporation Flexible belt supported on rigid drum for electrophotographic imaging
US5995244A (en) * 1997-07-23 1999-11-30 Tsai; Shui Chuan Multiple resolution page scanner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121134A1 (de) * 1970-04-24 1971-11-04 Ing. C. Olivetti & C, S.p.A., Ivrea, Turin (Italien) Gerät zum Vervielfältigen von Schriftstücken und dgl
US3873189A (en) * 1972-06-23 1975-03-25 Rank Xerox Ltd Adjustable-position optical system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598489A (en) * 1969-01-02 1971-08-10 Spaco Inc Projection system
JPS5241860Y2 (de) * 1973-02-27 1977-09-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121134A1 (de) * 1970-04-24 1971-11-04 Ing. C. Olivetti & C, S.p.A., Ivrea, Turin (Italien) Gerät zum Vervielfältigen von Schriftstücken und dgl
US3873189A (en) * 1972-06-23 1975-03-25 Rank Xerox Ltd Adjustable-position optical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093307A1 (de) * 1982-04-20 1983-11-09 Mita Industrial Co. Ltd. Elektrostatischer Kopierapparat

Also Published As

Publication number Publication date
DE2949338C2 (de) 1986-06-19
US4323308A (en) 1982-04-06

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition