JPS57141649A - Copying apparatus - Google Patents

Copying apparatus

Info

Publication number
JPS57141649A
JPS57141649A JP56201118A JP20111881A JPS57141649A JP S57141649 A JPS57141649 A JP S57141649A JP 56201118 A JP56201118 A JP 56201118A JP 20111881 A JP20111881 A JP 20111881A JP S57141649 A JPS57141649 A JP S57141649A
Authority
JP
Japan
Prior art keywords
plate
stop
switching
driving force
clock
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
JP56201118A
Other languages
Japanese (ja)
Other versions
JPS6118185B2 (en
Inventor
Hajime Katayama
Hiroshi Nitanda
Kenju Nagaoka
Hirotoshi Kishi
Noriyoshi Iida
Yusaku Takada
Yutaka Komiya
Tsuneki Inuzuka
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 JP56201118A priority Critical patent/JPS57141649A/en
Publication of JPS57141649A publication Critical patent/JPS57141649A/en
Publication of JPS6118185B2 publication Critical patent/JPS6118185B2/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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears

Abstract

PURPOSE:To reduce impact to be exerted on a reciprocating member in switching a driving force, by controlling driving force switching to the other direction after stop of the drive of the reciprocating member for exposing an original in response to an equal-interval pulse corresponding to rotation of an endless photosensitive belt. CONSTITUTION:An original placing plate is moved backward at a speed 4 times as high as the forward motion for exposure by the original placing plate reversal command CBREV 326 fed from a terminal 325 and stopped at the home position by a brake force applied to the driving mechanism due to detection of the plate position made by a magnet and a Hall element. Then, a plate forward- motion command signal is produced from an FF324 in accordance with the both of a plate home position signal CBHP converted into a high level and sent through a gate 315, and a copying execution signal CEXC produced one clock after the plate stop. During this one clock the plate continues to stop, and just after then, the driving force is switched over, thus permitting impact exerted on the plate at this switching to be alleviated.
JP56201118A 1981-12-14 1981-12-14 Copying apparatus Granted JPS57141649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56201118A JPS57141649A (en) 1981-12-14 1981-12-14 Copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56201118A JPS57141649A (en) 1981-12-14 1981-12-14 Copying apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49143892A Division JPS5931067B2 (en) 1974-12-13 1974-12-13 copying device

Publications (2)

Publication Number Publication Date
JPS57141649A true JPS57141649A (en) 1982-09-02
JPS6118185B2 JPS6118185B2 (en) 1986-05-10

Family

ID=16435696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56201118A Granted JPS57141649A (en) 1981-12-14 1981-12-14 Copying apparatus

Country Status (1)

Country Link
JP (1) JPS57141649A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604796A (en) * 1968-01-31 1971-09-14 Minolta Camera Kk Multiple-copy electrostatic machine control
JPS4879643A (en) * 1972-01-25 1973-10-25
JPS491578A (en) * 1972-03-28 1974-01-08
JPS4910746A (en) * 1972-05-25 1974-01-30
JPS4960741A (en) * 1972-08-30 1974-06-12
JPS506382U (en) * 1973-05-15 1975-01-23

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604796A (en) * 1968-01-31 1971-09-14 Minolta Camera Kk Multiple-copy electrostatic machine control
JPS4879643A (en) * 1972-01-25 1973-10-25
JPS491578A (en) * 1972-03-28 1974-01-08
JPS4910746A (en) * 1972-05-25 1974-01-30
JPS4960741A (en) * 1972-08-30 1974-06-12
JPS506382U (en) * 1973-05-15 1975-01-23

Also Published As

Publication number Publication date
JPS6118185B2 (en) 1986-05-10

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