JPS56144461A - Variable magnification optical device for copying machine - Google Patents

Variable magnification optical device for copying machine

Info

Publication number
JPS56144461A
JPS56144461A JP4889480A JP4889480A JPS56144461A JP S56144461 A JPS56144461 A JP S56144461A JP 4889480 A JP4889480 A JP 4889480A JP 4889480 A JP4889480 A JP 4889480A JP S56144461 A JPS56144461 A JP S56144461A
Authority
JP
Japan
Prior art keywords
lens
moving
carrier
copying
variable magnification
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
JP4889480A
Other languages
Japanese (ja)
Other versions
JPS6027971B2 (en
Inventor
Yuji Yasuda
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP4889480A priority Critical patent/JPS6027971B2/en
Publication of JPS56144461A publication Critical patent/JPS56144461A/en
Publication of JPS6027971B2 publication Critical patent/JPS6027971B2/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
    • G03G15/041—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)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To decrease the weight of scanning and obtain stable scanning speed by moving a scanner motor exclusively used for driving a lens together with a lens moving carriage in varying magnification by moving a mirror through lens scanning slit exposure thereby changing the optical path length. CONSTITUTION:The copying apparatus consists of a variable magnification part 1A and a copying part 1B, and an electrostatic drum 100 exposed by the light from the mirror part 9 of the part 1A is subjected to prescribed copying in the copying part 1B. After the original on the platen 2 of the variable magnification part is lighted by lighting parts 3-6, 3'-6', it is projected by a lens 7. A lens moving device 8 consists of a rod carrier 10 having a guide rod 12 guiding the lens 7 in an X direction and a carrier bracket 20 moving this carrier 10 in a Z direction and in the direction Y perpendicular to the plane of the figure. A scanner motor for driving the lens is proviced on the side part of said carrier 10.
JP4889480A 1980-04-14 1980-04-14 Copy machine variable magnification optical device Expired JPS6027971B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4889480A JPS6027971B2 (en) 1980-04-14 1980-04-14 Copy machine variable magnification optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4889480A JPS6027971B2 (en) 1980-04-14 1980-04-14 Copy machine variable magnification optical device

Publications (2)

Publication Number Publication Date
JPS56144461A true JPS56144461A (en) 1981-11-10
JPS6027971B2 JPS6027971B2 (en) 1985-07-02

Family

ID=12815970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4889480A Expired JPS6027971B2 (en) 1980-04-14 1980-04-14 Copy machine variable magnification optical device

Country Status (1)

Country Link
JP (1) JPS6027971B2 (en)

Also Published As

Publication number Publication date
JPS6027971B2 (en) 1985-07-02

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