JPS5768865A - Copying device - Google Patents

Copying device

Info

Publication number
JPS5768865A
JPS5768865A JP14493180A JP14493180A JPS5768865A JP S5768865 A JPS5768865 A JP S5768865A JP 14493180 A JP14493180 A JP 14493180A JP 14493180 A JP14493180 A JP 14493180A JP S5768865 A JPS5768865 A JP S5768865A
Authority
JP
Japan
Prior art keywords
optical system
shaft
gear
way clutch
reverse gear
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.)
Pending
Application number
JP14493180A
Other languages
Japanese (ja)
Inventor
Kenji Takeda
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP14493180A priority Critical patent/JPS5768865A/en
Publication of JPS5768865A publication Critical patent/JPS5768865A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To exactly align positions of an optical system and a photosensitive drum, by constituting so that a reverse gear is made unrelated to a driving shaft by operating a one-way clutch when the optical system moves forward, and a move- back speed by spring force is controlled by driving force from the driving shaft when the optical system moves backward. CONSTITUTION:On a shaft 56 to which a relay gear 55 has been fixed, a reverse gear 58 is provided through a one-way clutch 57, and when an optical system moves forward, a winding drum 37 and a relay gear 50 becomes one body and are rotated at a prescribed speed in the direction as indicated with an arrow B, and in this case, the reverse gear 58 and the shaft 56 become a slide state. When the optical system reaches the end of forward moving, the winding drum 37 is rotated in the direction as indicated with an arrow B' by spring force of a spring 43, therefore, the gear 58 becomes one body with the shaft 56 through the one-way clutch 57, and an equal move-back speed is obtained by driving force of power transfer routes 46-54-55-56-57-58-59-37.
JP14493180A 1980-10-16 1980-10-16 Copying device Pending JPS5768865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14493180A JPS5768865A (en) 1980-10-16 1980-10-16 Copying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14493180A JPS5768865A (en) 1980-10-16 1980-10-16 Copying device

Publications (1)

Publication Number Publication Date
JPS5768865A true JPS5768865A (en) 1982-04-27

Family

ID=15373525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14493180A Pending JPS5768865A (en) 1980-10-16 1980-10-16 Copying device

Country Status (1)

Country Link
JP (1) JPS5768865A (en)

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