JPS57141650A - Image forming apparatus - Google Patents

Image forming apparatus

Info

Publication number
JPS57141650A
JPS57141650A JP56201119A JP20111981A JPS57141650A JP S57141650 A JPS57141650 A JP S57141650A JP 56201119 A JP56201119 A JP 56201119A JP 20111981 A JP20111981 A JP 20111981A JP S57141650 A JPS57141650 A JP S57141650A
Authority
JP
Japan
Prior art keywords
cleaner
belt
rotation
image
signal
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
JP56201119A
Other languages
Japanese (ja)
Other versions
JPS6053315B2 (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 JP56201119A priority Critical patent/JPS6053315B2/en
Publication of JPS57141650A publication Critical patent/JPS57141650A/en
Publication of JPS6053315B2 publication Critical patent/JPS6053315B2/en
Expired 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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/14—Electronic sequencing control
    • G03G21/145—Electronic sequencing control wherein control pulses are generated by the mechanical movement of parts of the machine, e.g. the photoconductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To enable continuous copying to be done from an optional position of an endless photoreceptor without staining due to a cleaner, by counting pulses produced in synchronism to rotation of the photoreceptor to control start of image forming. CONSTITUTION:When an original placing plate home position signal CBHP and a copy making command signal CCMD are raised to high levels, high level output is applied to the data terminal D of FF324 through an AND gate 315. The output 4CP of a counter having counted 4 pulses sent due to optical detection of a rotation driving mechanism done by a magnet, a Hall element, etc., through an NAND gate 317 in synchronism to rotation of an endless photosensitive belt and a clock pulse CLCK sent due to a high-levl copy making signal, etc. after a part of the belt having faced a cleaner has passed through an image-forming section are simultaneously applied to FF324 to produce a platen forward-motion command signal and to start image-forming, thus permitting good-quality continuous copying free from stain due to the cleaner to be executed from any optional position of the belt.
JP56201119A 1981-12-14 1981-12-14 image forming device Expired JPS6053315B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56201119A JPS6053315B2 (en) 1981-12-14 1981-12-14 image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56201119A JPS6053315B2 (en) 1981-12-14 1981-12-14 image forming device

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
JPS57141650A true JPS57141650A (en) 1982-09-02
JPS6053315B2 JPS6053315B2 (en) 1985-11-25

Family

ID=16435715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56201119A Expired JPS6053315B2 (en) 1981-12-14 1981-12-14 image forming device

Country Status (1)

Country Link
JP (1) JPS6053315B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225075U (en) * 1985-07-29 1987-02-16
JPS6225073U (en) * 1985-07-29 1987-02-16
JPS6225074U (en) * 1985-07-29 1987-02-16

Also Published As

Publication number Publication date
JPS6053315B2 (en) 1985-11-25

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