JPS57111548A - Image reproducing device - Google Patents

Image reproducing device

Info

Publication number
JPS57111548A
JPS57111548A JP55188403A JP18840380A JPS57111548A JP S57111548 A JPS57111548 A JP S57111548A JP 55188403 A JP55188403 A JP 55188403A JP 18840380 A JP18840380 A JP 18840380A JP S57111548 A JPS57111548 A JP S57111548A
Authority
JP
Japan
Prior art keywords
microcomputer
resistor
voltage
comparator
side terminal
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
JP55188403A
Other languages
Japanese (ja)
Other versions
JPH0330862B2 (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 JP55188403A priority Critical patent/JPS57111548A/en
Publication of JPS57111548A publication Critical patent/JPS57111548A/en
Publication of JPH0330862B2 publication Critical patent/JPH0330862B2/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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5012—Priority interrupt; Job recovery, e.g. after jamming or malfunction

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To prevent action of copying means due to an erroneous signal, by resetting a microcomputer at start in a microcomputer-controlled electrophotographic copying machine, and then, making the copying means operable. CONSTITUTION:Upon turning on a switch, voltage is applied to the input terminals of comparators Q108-1, Q108-2 with resistors RA133-2, RA131-4. At that time, voltage is applied to the comparator Q108-1 through a resistor RA133-3 in a delayed form of rise time with a time constant circuit consisting of a resistor RA133-1. During about 30msec affter the supply of power, voltage of a negative side terminal is higher than that of the positive side terminal, and OV is fed from the output terminal of the comparator Q108-1, serving as a reset signal for a microcomputer. In addition, a diode D119 serves as a discharge diode on opening of the power supply, and a resistor RA134-2 gives hysteresis for preventing an erroneous action and chattering.
JP55188403A 1980-12-27 1980-12-27 Image reproducing device Granted JPS57111548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188403A JPS57111548A (en) 1980-12-27 1980-12-27 Image reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188403A JPS57111548A (en) 1980-12-27 1980-12-27 Image reproducing device

Publications (2)

Publication Number Publication Date
JPS57111548A true JPS57111548A (en) 1982-07-12
JPH0330862B2 JPH0330862B2 (en) 1991-05-01

Family

ID=16223028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188403A Granted JPS57111548A (en) 1980-12-27 1980-12-27 Image reproducing device

Country Status (1)

Country Link
JP (1) JPS57111548A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978370A (en) * 1982-09-21 1984-05-07 ゼロツクス・コ−ポレ−シヨン Self-testing system for copying machine
JPS59151161A (en) * 1983-02-04 1984-08-29 Toshiba Corp Method for controlling image forming device
JPS63105147U (en) * 1986-12-25 1988-07-07

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978370A (en) * 1982-09-21 1984-05-07 ゼロツクス・コ−ポレ−シヨン Self-testing system for copying machine
JPH0473785B2 (en) * 1982-09-21 1992-11-24
JPS59151161A (en) * 1983-02-04 1984-08-29 Toshiba Corp Method for controlling image forming device
JPS63105147U (en) * 1986-12-25 1988-07-07

Also Published As

Publication number Publication date
JPH0330862B2 (en) 1991-05-01

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