JPS5657051A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS5657051A
JPS5657051A JP13340879A JP13340879A JPS5657051A JP S5657051 A JPS5657051 A JP S5657051A JP 13340879 A JP13340879 A JP 13340879A JP 13340879 A JP13340879 A JP 13340879A JP S5657051 A JPS5657051 A JP S5657051A
Authority
JP
Japan
Prior art keywords
copying
latent image
images
primary
judged
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
JP13340879A
Other languages
Japanese (ja)
Inventor
Toshiro Kasamura
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 JP13340879A priority Critical patent/JPS5657051A/en
Priority to US06/191,002 priority patent/US4381147A/en
Priority to DE3038972A priority patent/DE3038972C2/en
Publication of JPS5657051A publication Critical patent/JPS5657051A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To improve the efficiency of copying work by forming again the latent images of a latent image carrying body according to the length of the stop time when the copying apparatus has stopped while it is forming the copying images continuously. CONSTITUTION:If in a copying apparatus having a capacity of obtaining 100 sheets of copied images from a primay latent image the primary latent image is formed again every time when trouble has occured at the 25th sheet and 50th sheet, it becomes equivalent to an apparatus which performs 100 sheets of copying through formation of the primary latent images of substantially three times. Thereupon, if any trouble occurs during continuous copying, whether the primary latent image is reusable or not is judged by electric means such as timer according to the processing time for the trouble. If it is judged to be usable, the primary latent image is reused and if it is judged unusable, the primary latent image is formed again, after which the copying operation for the remaining sheet number is carried out. In this way, the efficiency of the copying work may be improved.
JP13340879A 1979-10-16 1979-10-16 Copying machine Pending JPS5657051A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13340879A JPS5657051A (en) 1979-10-16 1979-10-16 Copying machine
US06/191,002 US4381147A (en) 1979-10-16 1980-09-26 Apparatus for forming plural images from a latent image
DE3038972A DE3038972C2 (en) 1979-10-16 1980-10-15 Apparatus for producing a plurality of images from a latent image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13340879A JPS5657051A (en) 1979-10-16 1979-10-16 Copying machine

Publications (1)

Publication Number Publication Date
JPS5657051A true JPS5657051A (en) 1981-05-19

Family

ID=15104056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13340879A Pending JPS5657051A (en) 1979-10-16 1979-10-16 Copying machine

Country Status (1)

Country Link
JP (1) JPS5657051A (en)

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