JPS5632163A - Copying device with variable power - Google Patents

Copying device with variable power

Info

Publication number
JPS5632163A
JPS5632163A JP10773379A JP10773379A JPS5632163A JP S5632163 A JPS5632163 A JP S5632163A JP 10773379 A JP10773379 A JP 10773379A JP 10773379 A JP10773379 A JP 10773379A JP S5632163 A JPS5632163 A JP S5632163A
Authority
JP
Japan
Prior art keywords
transcribing
feeding
threshold
original
magnification
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
JP10773379A
Other languages
Japanese (ja)
Inventor
Koichi Miyamoto
Yasuto Kan
Hiroshi Nitanda
Masao Ariga
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 JP10773379A priority Critical patent/JPS5632163A/en
Publication of JPS5632163A publication Critical patent/JPS5632163A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To achieve copying which is free from distorted transcription under any varied magnification, by making the transcribing material stand by at a specific standard feeding position conforming to magnification, and by feeding said transcribing material upon detecting the passing of the threshold of the original through the standard scanning position. CONSTITUTION:A standard position D for feeding the original is provided in the feeding path for the original O1, and the threshold position of said original O1 is detected by the light emitting element 23 and photodetecting element 24. The time required until the scanning starts after the threshold of said original O1 passed through the position D varies according to the selected magnification. Conforming to the variable time required, the standard positions C1, C2 and C3 for feeding the transcribing papers are provided, which make the threshold of said transcribing papers stop and stand by in the path for feeding the transcribing paper P. Thus, when the feeding is started for said transcribing paper P stand by at said positions C1, C2 and C3 after elapsing a certain time from the moment at which the threshold of the original O1 passed the position D, synchronization of the time of arrival of both toner figures of the photoreceptor and the threshold of transcribing paper at the transcribing position B is achieved under any magnification, so that distorted transcription is satisfactorily prevented.
JP10773379A 1979-08-24 1979-08-24 Copying device with variable power Pending JPS5632163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10773379A JPS5632163A (en) 1979-08-24 1979-08-24 Copying device with variable power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10773379A JPS5632163A (en) 1979-08-24 1979-08-24 Copying device with variable power

Publications (1)

Publication Number Publication Date
JPS5632163A true JPS5632163A (en) 1981-04-01

Family

ID=14466562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10773379A Pending JPS5632163A (en) 1979-08-24 1979-08-24 Copying device with variable power

Country Status (1)

Country Link
JP (1) JPS5632163A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101636A (en) * 1982-12-01 1984-06-12 Fuji Xerox Co Ltd Additional exposure device of copying machine
JPS59166932A (en) * 1983-03-14 1984-09-20 Fuji Xerox Co Ltd Exposing device of copying machine
JPS59171943A (en) * 1983-03-19 1984-09-28 Fuji Xerox Co Ltd Scanning controller of copying machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101636A (en) * 1982-12-01 1984-06-12 Fuji Xerox Co Ltd Additional exposure device of copying machine
JPS59166932A (en) * 1983-03-14 1984-09-20 Fuji Xerox Co Ltd Exposing device of copying machine
JPS59171943A (en) * 1983-03-19 1984-09-28 Fuji Xerox Co Ltd Scanning controller of copying machine
JPH0423266B2 (en) * 1983-03-19 1992-04-21 Fuji Xerox Co Ltd

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