JPS5738442A - Method for preventing image transfer in copying machine - Google Patents

Method for preventing image transfer in copying machine

Info

Publication number
JPS5738442A
JPS5738442A JP11335780A JP11335780A JPS5738442A JP S5738442 A JPS5738442 A JP S5738442A JP 11335780 A JP11335780 A JP 11335780A JP 11335780 A JP11335780 A JP 11335780A JP S5738442 A JPS5738442 A JP S5738442A
Authority
JP
Japan
Prior art keywords
platen
copying machine
scan
carriage
image transfer
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
JP11335780A
Other languages
Japanese (ja)
Inventor
Akio Takeuchi
Shin Sakurai
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 JP11335780A priority Critical patent/JPS5738442A/en
Publication of JPS5738442A publication Critical patent/JPS5738442A/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)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To prevent retransferring of an image, by stopping a platen or an exposure lamp carriage at a scan end position temporarily, and exposing a photosensitive drum to the while part of the lower face of the platen or the like for that stop time. CONSTITUTION:When a platen 5 comes to a scan end position, a reed switch 7 fixed to the main body 8 of a copying machine is turned on with a magnet 6 installed on one end of the platen 5 to turn off a scan clutch 2 and to stop the platen 5 or the carriage of an exposure lamp 9 temporarily, and after a photosensitive drum 11 has been exposed to the white part of the lower face of the platen 5 or the like, the scan clutch 3 is turned on, thus permitting a useless image not to be transferred on a paper only by considering a timing for the platen 5 or the carriage of the lamp 9.
JP11335780A 1980-08-20 1980-08-20 Method for preventing image transfer in copying machine Pending JPS5738442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11335780A JPS5738442A (en) 1980-08-20 1980-08-20 Method for preventing image transfer in copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11335780A JPS5738442A (en) 1980-08-20 1980-08-20 Method for preventing image transfer in copying machine

Publications (1)

Publication Number Publication Date
JPS5738442A true JPS5738442A (en) 1982-03-03

Family

ID=14610220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11335780A Pending JPS5738442A (en) 1980-08-20 1980-08-20 Method for preventing image transfer in copying machine

Country Status (1)

Country Link
JP (1) JPS5738442A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592058A (en) * 1982-06-28 1984-01-07 Ricoh Co Ltd Method for making patterned image for controlling image density in electrophotographic copying machine
JPS6059271U (en) * 1983-09-28 1985-04-24 京セラミタ株式会社 electrostatic copying machine
JPS6146971A (en) * 1984-08-13 1986-03-07 Mita Ind Co Ltd Destaticizing method of photosensitive drum
JPH01303461A (en) * 1988-05-31 1989-12-07 Sharp Corp Image forming device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015556A (en) * 1973-06-08 1975-02-19
JPS5363020A (en) * 1976-11-18 1978-06-06 Ricoh Co Ltd Image control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015556A (en) * 1973-06-08 1975-02-19
JPS5363020A (en) * 1976-11-18 1978-06-06 Ricoh Co Ltd Image control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592058A (en) * 1982-06-28 1984-01-07 Ricoh Co Ltd Method for making patterned image for controlling image density in electrophotographic copying machine
JPS6059271U (en) * 1983-09-28 1985-04-24 京セラミタ株式会社 electrostatic copying machine
JPH0353228Y2 (en) * 1983-09-28 1991-11-20
JPS6146971A (en) * 1984-08-13 1986-03-07 Mita Ind Co Ltd Destaticizing method of photosensitive drum
JPH01303461A (en) * 1988-05-31 1989-12-07 Sharp Corp Image forming device

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