JPS57666A - Safety device of copying machine - Google Patents

Safety device of copying machine

Info

Publication number
JPS57666A
JPS57666A JP7452080A JP7452080A JPS57666A JP S57666 A JPS57666 A JP S57666A JP 7452080 A JP7452080 A JP 7452080A JP 7452080 A JP7452080 A JP 7452080A JP S57666 A JPS57666 A JP S57666A
Authority
JP
Japan
Prior art keywords
power supply
controller
driving part
turning
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.)
Pending
Application number
JP7452080A
Other languages
Japanese (ja)
Inventor
Shunichi Masuda
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 JP7452080A priority Critical patent/JPS57666A/en
Priority to GB8116795A priority patent/GB2079004B/en
Priority to DE3121872A priority patent/DE3121872C2/en
Publication of JPS57666A publication Critical patent/JPS57666A/en
Priority to US06/556,149 priority patent/US4556310A/en
Priority to HK461/88A priority patent/HK46188A/en
Pending 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0421—Multiprocessor system
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/22—Pc multi processor system
    • G05B2219/2214—Multicontrollers, multimicrocomputers, multiprocessing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25178—Serial communication, data, also repeater
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25289—Energy saving, brown out, standby, sleep, powerdown modus for microcomputer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To make a complicated soft program unnecessary and to enhance safety of an apparatus, by disconnecting power supply to a processing means driving part upon detecting abnormality of clock pulses. CONSTITUTION:Voltage VCC is applied to a controller 12 with a power supply circuit for control on closing of a main switch SW1 to execute a predetermined processing flow. Turning on a transistor TR11 turns on TR6 and TR5, too, and voltage VAA is applied to an apparatus driving part from a power supply controller IC7. Turning on a copying key turns on a driver 22, a relay 13, and a motor 14, and a copying cycle is executed. A clock number for executing a rotation cycle is set in RAM in the controller 12, and when a drum clock DCK does not enter a detection circuit, TR43, 11, 6, 5 are successively turned off, output of the voltage VAA is disconnected, and the action of the apparatus driving part stops, but power supply to the controller 12 is kept on.
JP7452080A 1980-06-03 1980-06-03 Safety device of copying machine Pending JPS57666A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7452080A JPS57666A (en) 1980-06-03 1980-06-03 Safety device of copying machine
GB8116795A GB2079004B (en) 1980-06-03 1981-06-02 Reproduction apparatus
DE3121872A DE3121872C2 (en) 1980-06-03 1981-06-02 "Copier or printer"
US06/556,149 US4556310A (en) 1980-06-03 1983-11-28 Copying or printing apparatus
HK461/88A HK46188A (en) 1980-06-03 1988-06-23 An image recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7452080A JPS57666A (en) 1980-06-03 1980-06-03 Safety device of copying machine

Publications (1)

Publication Number Publication Date
JPS57666A true JPS57666A (en) 1982-01-05

Family

ID=13549673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7452080A Pending JPS57666A (en) 1980-06-03 1980-06-03 Safety device of copying machine

Country Status (1)

Country Link
JP (1) JPS57666A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569585A (en) * 1982-06-17 1986-02-11 Canon Kabushiki Kaisha Image forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569585A (en) * 1982-06-17 1986-02-11 Canon Kabushiki Kaisha Image forming apparatus

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