JPS5652771A - Image composite copying method - Google Patents

Image composite copying method

Info

Publication number
JPS5652771A
JPS5652771A JP12911179A JP12911179A JPS5652771A JP S5652771 A JPS5652771 A JP S5652771A JP 12911179 A JP12911179 A JP 12911179A JP 12911179 A JP12911179 A JP 12911179A JP S5652771 A JPS5652771 A JP S5652771A
Authority
JP
Japan
Prior art keywords
color light
image information
photoconductive
photoconductive layers
image
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
JP12911179A
Other languages
Japanese (ja)
Other versions
JPS6318751B2 (en
Inventor
Toshio Sakai
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 JP12911179A priority Critical patent/JPS5652771A/en
Publication of JPS5652771A publication Critical patent/JPS5652771A/en
Publication of JPS6318751B2 publication Critical patent/JPS6318751B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Combination Of More Than One Step In Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE: To obtain sharp composite copied images by laminating the 1st and 2nd photoconductive layers on a conductive substrate and so constituting these that at the time of irradiating A color light and B color light separately the 1st and 2nd photoconductive layers are made conductive respectively discretely.
CONSTITUTION: A photoreceptor 1 consists in laminating the 1st and 2nd photoconductive layers 11, 12 on a conductive substrate 10 and at the time when A color light is irradiated, the photoconductive layer 11 is mainly made conductive and when B color light is radiated the photoconductive layer 12 is mainly made conductive. These photoconductive layers 11, 12 are charged alternately oppositely, whereby the surface potential of the photoreceptor is made sufficiently large. Next, the exposure of the positive image by the B color light of image information X is so performed that the surface potential of the ground part becomes approximately zero, thence the writing of the negative image of the image information Y by the A color light on the ground part is performed, whereby the composite electrostatic latent images of the same polarity corresponding to the image information X, Y are formed. In this way, the sharp composite copied images may be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP12911179A 1979-10-06 1979-10-06 Image composite copying method Granted JPS5652771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12911179A JPS5652771A (en) 1979-10-06 1979-10-06 Image composite copying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12911179A JPS5652771A (en) 1979-10-06 1979-10-06 Image composite copying method

Publications (2)

Publication Number Publication Date
JPS5652771A true JPS5652771A (en) 1981-05-12
JPS6318751B2 JPS6318751B2 (en) 1988-04-20

Family

ID=15001331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12911179A Granted JPS5652771A (en) 1979-10-06 1979-10-06 Image composite copying method

Country Status (1)

Country Link
JP (1) JPS5652771A (en)

Also Published As

Publication number Publication date
JPS6318751B2 (en) 1988-04-20

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