JPS57191653A - Picture forming device - Google Patents

Picture forming device

Info

Publication number
JPS57191653A
JPS57191653A JP56077059A JP7705981A JPS57191653A JP S57191653 A JPS57191653 A JP S57191653A JP 56077059 A JP56077059 A JP 56077059A JP 7705981 A JP7705981 A JP 7705981A JP S57191653 A JPS57191653 A JP S57191653A
Authority
JP
Japan
Prior art keywords
original
board
distance
inclination
angle
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
JP56077059A
Other languages
Japanese (ja)
Inventor
Shoichi Koroku
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 JP56077059A priority Critical patent/JPS57191653A/en
Publication of JPS57191653A publication Critical patent/JPS57191653A/en
Pending 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
    • G03G15/60—Apparatus which relate to the handling of originals
    • G03G15/605—Holders for originals or exposure platens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To realize a clear copying for such a center bound-form original as a book, etc., by measuring the distance between the original and the original board and the angle of inclination of the original to control the position of the original board and the scanning speed and at the same time carrying out the control of the luminous intensity. CONSTITUTION:The distance between an original board 1 and the original and the angle of inclination of the original are measured by means of a semiconductor laser oscillator 5 and a CCD image sensor 7 in a distance measuring circuit 16. The board 1 can move up and down by means of an original board position controller consisting of the support members 8 and 9. The measurement signal of the circuit 16 is supplied to a prescribed circuit. Then a light source 20, the scanning speed of a mirror 21 and the position of the board 1 are controlled in accordance with the distance between the original and the board 1 and the angle of inclination of the original. In addition, the luminous intensity on the original surface is measured to control the voltage of the light source 20. As a result, the reduction and the bur of a picture and a full-black picture caused by the lack of the light volume can be eliminated to obtain a clear picture.
JP56077059A 1981-05-21 1981-05-21 Picture forming device Pending JPS57191653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56077059A JPS57191653A (en) 1981-05-21 1981-05-21 Picture forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56077059A JPS57191653A (en) 1981-05-21 1981-05-21 Picture forming device

Publications (1)

Publication Number Publication Date
JPS57191653A true JPS57191653A (en) 1982-11-25

Family

ID=13623214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56077059A Pending JPS57191653A (en) 1981-05-21 1981-05-21 Picture forming device

Country Status (1)

Country Link
JP (1) JPS57191653A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7072527B1 (en) 1998-06-30 2006-07-04 Sharp Kabushiki Kaisha Image correction apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7072527B1 (en) 1998-06-30 2006-07-04 Sharp Kabushiki Kaisha Image correction apparatus

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