JPS57111547A - Copying apparatus - Google Patents

Copying apparatus

Info

Publication number
JPS57111547A
JPS57111547A JP55188402A JP18840280A JPS57111547A JP S57111547 A JPS57111547 A JP S57111547A JP 55188402 A JP55188402 A JP 55188402A JP 18840280 A JP18840280 A JP 18840280A JP S57111547 A JPS57111547 A JP S57111547A
Authority
JP
Japan
Prior art keywords
synchronized
photosensitive drum
generating means
scanning system
original scanning
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.)
Granted
Application number
JP55188402A
Other languages
Japanese (ja)
Other versions
JPH022142B2 (en
Inventor
Tsuneki Inuzuka
Katsuyoshi Maejima
Masahiro Tomosada
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 JP55188402A priority Critical patent/JPS57111547A/en
Priority to GB8131406A priority patent/GB2087577B/en
Priority to DE3153341A priority patent/DE3153341C2/de
Priority to DE3153482A priority patent/DE3153482C2/de
Priority to DE19813141464 priority patent/DE3141464A1/en
Publication of JPS57111547A publication Critical patent/JPS57111547A/en
Priority to GB08323166A priority patent/GB2128346B/en
Priority to US07/090,429 priority patent/US4839698A/en
Priority to US07436974 priority patent/US5008712B1/en
Publication of JPH022142B2 publication Critical patent/JPH022142B2/ja
Granted 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
    • 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
    • G03G15/041—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 variable magnification

Abstract

PURPOSE:To enhance precision of control timing, by using pulse generating means synchronized to rotation of a photosensitive drum and pulse generating means synchronized to movement of an original scanning system. CONSTITUTION:A pulse signal is obtained with discs 203, 204 rotating in synchronism to an original scanning system, and start of forward motion of the system from its home position is detected. Counting a pulse signal obtained from a disc 206 synchronized to a photosensitive drum 1 is started, and when it reaches a given number, a paper feed signal is produced.
JP55188402A 1980-10-17 1980-12-27 Copying apparatus Granted JPS57111547A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP55188402A JPS57111547A (en) 1980-12-27 1980-12-27 Copying apparatus
GB8131406A GB2087577B (en) 1980-10-17 1981-10-19 Variable magnification photocopying
DE3153341A DE3153341C2 (en) 1980-10-17 1981-10-19
DE3153482A DE3153482C2 (en) 1980-10-17 1981-10-19
DE19813141464 DE3141464A1 (en) 1980-10-17 1981-10-19 "COPIER"
GB08323166A GB2128346B (en) 1980-10-17 1983-08-30 Variable magnification photocopying
US07/090,429 US4839698A (en) 1980-10-17 1987-08-26 Copying apparatus
US07436974 US5008712B1 (en) 1980-10-17 1989-11-16 Variable magnification copying apparatus and automatic shutdown therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188402A JPS57111547A (en) 1980-12-27 1980-12-27 Copying apparatus

Publications (2)

Publication Number Publication Date
JPS57111547A true JPS57111547A (en) 1982-07-12
JPH022142B2 JPH022142B2 (en) 1990-01-17

Family

ID=16223009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188402A Granted JPS57111547A (en) 1980-10-17 1980-12-27 Copying apparatus

Country Status (1)

Country Link
JP (1) JPS57111547A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6098458A (en) * 1983-11-04 1985-06-01 Fuji Xerox Co Ltd Driving timing generating device of copying machine
US4783682A (en) * 1985-03-04 1988-11-08 Sharp Kabushiki Kaisha Copy paper delivery timing control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6098458A (en) * 1983-11-04 1985-06-01 Fuji Xerox Co Ltd Driving timing generating device of copying machine
US4783682A (en) * 1985-03-04 1988-11-08 Sharp Kabushiki Kaisha Copy paper delivery timing control device

Also Published As

Publication number Publication date
JPH022142B2 (en) 1990-01-17

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