JPS5460929A - Control system of copying machines - Google Patents

Control system of copying machines

Info

Publication number
JPS5460929A
JPS5460929A JP12674277A JP12674277A JPS5460929A JP S5460929 A JPS5460929 A JP S5460929A JP 12674277 A JP12674277 A JP 12674277A JP 12674277 A JP12674277 A JP 12674277A JP S5460929 A JPS5460929 A JP S5460929A
Authority
JP
Japan
Prior art keywords
copying machine
copying
restarting
timer
time
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
JP12674277A
Other languages
Japanese (ja)
Other versions
JPS62497B2 (en
Inventor
Masao Hosaka
Yoshitaka Ogino
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12674277A priority Critical patent/JPS5460929A/en
Publication of JPS5460929A publication Critical patent/JPS5460929A/en
Publication of JPS62497B2 publication Critical patent/JPS62497B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make restarting of copying operation smooth and sure by controlling power source and copying machine by way of a one-chip mecroiciomputer with a built-in timer which is backed up with an external battery.
CONSTITUTION: A one-chip microcomputer 13 which is backed up with an external battery by the DC circuit provided with a buffer 14 for detection of DC potentials perorms judgement of whether the power cutoff time is within the fixed timer time of the built-in timer or not by performing interrupt processing when the power supply to a copying machine 12 is cut off owing to service interruption, malfunction, etc., and controls restarting of th copying machine 12 by determining whether the restarting condition of the copying machine after resetting of the power source is corresponded to the contents having been stored at the time of cuttoff or is corresponded to the initial condition. Hence, sopying corresponding to the conditions at the power souce cuttoff is restarted smoothly and surely and the occurrence of defective copying, etc. is prevented
COPYRIGHT: (C)1979,JPO&Japio
JP12674277A 1977-10-24 1977-10-24 Control system of copying machines Granted JPS5460929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12674277A JPS5460929A (en) 1977-10-24 1977-10-24 Control system of copying machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12674277A JPS5460929A (en) 1977-10-24 1977-10-24 Control system of copying machines

Publications (2)

Publication Number Publication Date
JPS5460929A true JPS5460929A (en) 1979-05-16
JPS62497B2 JPS62497B2 (en) 1987-01-08

Family

ID=14942772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12674277A Granted JPS5460929A (en) 1977-10-24 1977-10-24 Control system of copying machines

Country Status (1)

Country Link
JP (1) JPS5460929A (en)

Also Published As

Publication number Publication date
JPS62497B2 (en) 1987-01-08

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