JPS54116234A - Rhotoreceptor for electrophotography - Google Patents

Rhotoreceptor for electrophotography

Info

Publication number
JPS54116234A
JPS54116234A JP2317578A JP2317578A JPS54116234A JP S54116234 A JPS54116234 A JP S54116234A JP 2317578 A JP2317578 A JP 2317578A JP 2317578 A JP2317578 A JP 2317578A JP S54116234 A JPS54116234 A JP S54116234A
Authority
JP
Japan
Prior art keywords
layer
color
photoconductive
hυa
layers
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
JP2317578A
Other languages
Japanese (ja)
Inventor
Shuichi Karasawa
Seiichi Sakuma
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 JP2317578A priority Critical patent/JPS54116234A/en
Publication of JPS54116234A publication Critical patent/JPS54116234A/en
Pending legal-status Critical Current

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  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE: To enable always distinct two color copied images to be obtained and enable the production of the photoreceptor itself to be readily performed by laminating two kinds of specific photoconductive layers on a conductive substrate.
CONSTITUTION: A first photoconductive layer 12 composed of photoconductive ZnO, a sensitizer and a binder and a second photoconductive layer 13 such as CdS-resin dispersion layer are laminated on a conductive substrate 11. Negative charges are applied from a charger 2 to this photoreceptor 1 under the even radiation of light hυA of a color A. The light hυA transmits through the layer 13 and is absorbed in the layer 12 to turn this conductive, by which positive charges are induced at the boundary of the layers 12,13. Next, positive charges are applied by a charger 3, after which white color images are exposed. In the portions corresponding to the white ground of the original, the light hυA+B is radiated and the layers 12, 13 are respectively turned conductive, then their surface potentials become nearly 0. One the other hand, the positive surface potentials are maintained in the unexposed parts and negative potentials appear in the portions corresponding to the color A of the original. These latent images are developed by developers TA, TB of opposite polarities
COPYRIGHT: (C)1979,JPO&Japio
JP2317578A 1978-03-01 1978-03-01 Rhotoreceptor for electrophotography Pending JPS54116234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2317578A JPS54116234A (en) 1978-03-01 1978-03-01 Rhotoreceptor for electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2317578A JPS54116234A (en) 1978-03-01 1978-03-01 Rhotoreceptor for electrophotography

Publications (1)

Publication Number Publication Date
JPS54116234A true JPS54116234A (en) 1979-09-10

Family

ID=12103288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2317578A Pending JPS54116234A (en) 1978-03-01 1978-03-01 Rhotoreceptor for electrophotography

Country Status (1)

Country Link
JP (1) JPS54116234A (en)

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