JPS5756860A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS5756860A
JPS5756860A JP13207380A JP13207380A JPS5756860A JP S5756860 A JPS5756860 A JP S5756860A JP 13207380 A JP13207380 A JP 13207380A JP 13207380 A JP13207380 A JP 13207380A JP S5756860 A JPS5756860 A JP S5756860A
Authority
JP
Japan
Prior art keywords
original
photodetectors
edge
size
graduation
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
JP13207380A
Other languages
Japanese (ja)
Inventor
Tokuo Kokaji
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.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
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 Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP13207380A priority Critical patent/JPS5756860A/en
Publication of JPS5756860A publication Critical patent/JPS5756860A/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
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/6221—Transparent copy platens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To record in white a part which is out of an original or a part near the edge of the original, by detecting the size of the original placed on the original table by a photodetector, etc., and executing its processing simultaneously with a scanning signal. CONSTITUTION:Photodetectors 151-154 consisting of an optical guide like an optical fiber, and a photoelectric converting element are provided in an original holder 150, and main and sub-scanning graduation plates 161, 162 bearing the graduation of size of an original are provided on original mounting glass 102. The detectors 151-154 are positioned at the graduations of a part between B5 and A4, between A4 and B4, and of B5 and B4, respectively. When the original holder 150 is lowered and the start key is pushed, input signals of the photodetectors 151-154 are inputted to the processing part which is not shown in the figure, a signal inputted from a read head of the image pickup part is processed, is outputted to a write head, and a latent image having no charge is formed on the part corresponding to the edge of the original on the photosensitive drum.
JP13207380A 1980-09-22 1980-09-22 Copying machine Pending JPS5756860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13207380A JPS5756860A (en) 1980-09-22 1980-09-22 Copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13207380A JPS5756860A (en) 1980-09-22 1980-09-22 Copying machine

Publications (1)

Publication Number Publication Date
JPS5756860A true JPS5756860A (en) 1982-04-05

Family

ID=15072873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13207380A Pending JPS5756860A (en) 1980-09-22 1980-09-22 Copying machine

Country Status (1)

Country Link
JP (1) JPS5756860A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414747A (en) * 1977-07-06 1979-02-03 Canon Inc Automatic copying machine
JPS5522703A (en) * 1978-06-20 1980-02-18 Ricoh Co Ltd Image element division type copier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414747A (en) * 1977-07-06 1979-02-03 Canon Inc Automatic copying machine
JPS5522703A (en) * 1978-06-20 1980-02-18 Ricoh Co Ltd Image element division type copier

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