JPS57192974A - Position detector of optical scanning system for copying machine - Google Patents

Position detector of optical scanning system for copying machine

Info

Publication number
JPS57192974A
JPS57192974A JP7799981A JP7799981A JPS57192974A JP S57192974 A JPS57192974 A JP S57192974A JP 7799981 A JP7799981 A JP 7799981A JP 7799981 A JP7799981 A JP 7799981A JP S57192974 A JPS57192974 A JP S57192974A
Authority
JP
Japan
Prior art keywords
optical scanning
scanning system
signal
colored paper
paper
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
JP7799981A
Other languages
Japanese (ja)
Inventor
Kazuyasu Takaya
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP7799981A priority Critical patent/JPS57192974A/en
Publication of JPS57192974A publication Critical patent/JPS57192974A/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 detect the position of an optical scanning system precisely with a simple structure by detecting colored paper by a color sensor. CONSTITUTION:The 1st, 2nd and 3rd colored paper 61, 62, 63 are respectively fitted to the positions opposed to a home position (a), the 1st return position (b) and the 2nd return position (c) of an optical scanning system 1 along the scanning direction shown by an arrow (d) so as to be close to an edge part intersecting with the scanning direction (d) of the manuscript setting board 2 at the lower surface 5 of the body 5 of a copying machine. A color sensor 7 is set on the optical scanning system 1 so as to correspond to the colored paper 61-63. The color sensor 7 changes detection voltage R according to the color of the colored paper 61-63 to be detected and a comparator 9 compares the detected voltage with the one previously fixed in the comparator 9; when these signals coincide with each other, coincident signals R1-R3 are outputted respectively. Each signal is inputted to a control circuit 4 and applied to logical operation with a paper size signal R4 from a copying paper size detector 10 or a manuscript size signal R5 from a manuscript size detector 11 and an optical scanning system driving signal R6 is outputted to an optical scanning system driving device 13.
JP7799981A 1981-05-25 1981-05-25 Position detector of optical scanning system for copying machine Pending JPS57192974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7799981A JPS57192974A (en) 1981-05-25 1981-05-25 Position detector of optical scanning system for copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7799981A JPS57192974A (en) 1981-05-25 1981-05-25 Position detector of optical scanning system for copying machine

Publications (1)

Publication Number Publication Date
JPS57192974A true JPS57192974A (en) 1982-11-27

Family

ID=13649492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7799981A Pending JPS57192974A (en) 1981-05-25 1981-05-25 Position detector of optical scanning system for copying machine

Country Status (1)

Country Link
JP (1) JPS57192974A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142643A (en) * 1984-08-06 1986-03-01 Sanyo Electric Co Ltd Original exposing scanner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142643A (en) * 1984-08-06 1986-03-01 Sanyo Electric Co Ltd Original exposing scanner

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