JPS57181536A - Transmission type copying machine - Google Patents

Transmission type copying machine

Info

Publication number
JPS57181536A
JPS57181536A JP6623081A JP6623081A JPS57181536A JP S57181536 A JPS57181536 A JP S57181536A JP 6623081 A JP6623081 A JP 6623081A JP 6623081 A JP6623081 A JP 6623081A JP S57181536 A JPS57181536 A JP S57181536A
Authority
JP
Japan
Prior art keywords
original
exposure
conveyed
paper
partition plate
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
JP6623081A
Other languages
Japanese (ja)
Inventor
Tokuzo Kaneda
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 JP6623081A priority Critical patent/JPS57181536A/en
Publication of JPS57181536A publication Critical patent/JPS57181536A/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
    • G03G15/04—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
    • G03G15/043—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 means for controlling illumination or exposure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To set the quantity of exposure light efficiently by the use of many kinds of originals by providing a partition plate turning circumferentially between the inside surface of a transparent cylinder and a light source for exposure, and setting the stop position of the partition plate according to the quantity of the transmitted light of the originals. CONSTITUTION:An original G is conveyed from an original supply part 13 to the inside of an original conveying path, and photosensitive paper P is conveyed from a photosensitive paper supply part 12 into a photosensitive paper conveying path 16. The original G and the paper P are superposed and conveyed on a superposed body conveying path 18 provided in front of these two conveying paths, and receive exposure by a light source 23 for exposure of a transparent cylinder 20. The quantity of the transmitted light of the original G is measured with an optical sensor A, and according to the measured value thereof, the turning amount of a partition plate 28 provided concentrically in the cylinder 20 is determined. If the transmittance of the original G is large, the irradiation time from the light source 23 to the original G and paper P under conveyance is shortened, whereby correct exposure is given to these.
JP6623081A 1981-05-01 1981-05-01 Transmission type copying machine Pending JPS57181536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6623081A JPS57181536A (en) 1981-05-01 1981-05-01 Transmission type copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6623081A JPS57181536A (en) 1981-05-01 1981-05-01 Transmission type copying machine

Publications (1)

Publication Number Publication Date
JPS57181536A true JPS57181536A (en) 1982-11-09

Family

ID=13309832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6623081A Pending JPS57181536A (en) 1981-05-01 1981-05-01 Transmission type copying machine

Country Status (1)

Country Link
JP (1) JPS57181536A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007319975A (en) * 2006-05-31 2007-12-13 Imao Corporation:Kk Holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007319975A (en) * 2006-05-31 2007-12-13 Imao Corporation:Kk Holder

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