JPS6486182A - Variable magnification driving controller - Google Patents

Variable magnification driving controller

Info

Publication number
JPS6486182A
JPS6486182A JP14451587A JP14451587A JPS6486182A JP S6486182 A JPS6486182 A JP S6486182A JP 14451587 A JP14451587 A JP 14451587A JP 14451587 A JP14451587 A JP 14451587A JP S6486182 A JPS6486182 A JP S6486182A
Authority
JP
Japan
Prior art keywords
mirror
movable mirror
defocusing
variable magnification
constant
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
JP14451587A
Other languages
Japanese (ja)
Other versions
JP2511458B2 (en
Inventor
Toshikazu Kawaguchi
Katsuhiko 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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP14451587A priority Critical patent/JP2511458B2/en
Publication of JPS6486182A publication Critical patent/JPS6486182A/en
Application granted granted Critical
Publication of JP2511458B2 publication Critical patent/JP2511458B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Abstract

PURPOSE:To eliminate defocusing due to a difference in variable magnification moving direction, specially, one-sided defocusing by making the movement/ stopping direction of a mirror for correction invariably constant. CONSTITUTION:A movable mirror 25 has two moving directions. The movable mirror 25 moves by having driving force given by a stepping motor M2 on a lengthwise E side through a cam 74 and levers 73 and 74, so the movement is delayed slightly on the opposite F side because of mechanical backlash and resistance force. Consequently, the mirror surface slants as compared with a correct position (shown by dotted line) to cause one-sided defocusing. The mirror slants in two directions. For the purpose, the stopping direction of the movable mirror 25 is made constant to make the inclination of the movable mirror constant. Consequently, the trouble is eliminated.
JP14451587A 1987-06-09 1987-06-09 Variable power drive controller Expired - Lifetime JP2511458B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14451587A JP2511458B2 (en) 1987-06-09 1987-06-09 Variable power drive controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14451587A JP2511458B2 (en) 1987-06-09 1987-06-09 Variable power drive controller

Publications (2)

Publication Number Publication Date
JPS6486182A true JPS6486182A (en) 1989-03-30
JP2511458B2 JP2511458B2 (en) 1996-06-26

Family

ID=15364141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14451587A Expired - Lifetime JP2511458B2 (en) 1987-06-09 1987-06-09 Variable power drive controller

Country Status (1)

Country Link
JP (1) JP2511458B2 (en)

Also Published As

Publication number Publication date
JP2511458B2 (en) 1996-06-26

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