JPS5589849A - Composite photoreceptor for electrophotography - Google Patents

Composite photoreceptor for electrophotography

Info

Publication number
JPS5589849A
JPS5589849A JP16305978A JP16305978A JPS5589849A JP S5589849 A JPS5589849 A JP S5589849A JP 16305978 A JP16305978 A JP 16305978A JP 16305978 A JP16305978 A JP 16305978A JP S5589849 A JPS5589849 A JP S5589849A
Authority
JP
Japan
Prior art keywords
photoconductive layer
photoreceptor
electrophotography
chromatic color
photoconductive
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
JP16305978A
Other languages
Japanese (ja)
Inventor
Seiichi Sakuma
Shuichi Karasawa
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 JP16305978A priority Critical patent/JPS5589849A/en
Priority to DE2938129A priority patent/DE2938129C2/en
Publication of JPS5589849A publication Critical patent/JPS5589849A/en
Priority to US06/274,620 priority patent/US4521504A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE: To obtain the captioned photoreceptor which permits ordinary black and white copying and two-color copying through one exposure by laminating and using two layers of photoconductive layers having the specific spectral sensitivities.
CONSTITUTION: The 1st photoconductive layer which is sensitive to chromatic color light A under both positive and negative charging and the 2nd photosensitive layer which allows the transmission of the chromatic color liqht A and is sensitive to chromatic color light B only under positive (or negative) charging are subsequently laminated on a conductive substrate and the ratio between the sensitivity of the 2nd photoconductive layer and the sensitivity of the 1st photoconductive layer which makes the 2nd photoconductive layer as its filter is made 1W20, whereby the composite photoreceptor for electrophotography is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP16305978A 1978-09-22 1978-12-28 Composite photoreceptor for electrophotography Pending JPS5589849A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16305978A JPS5589849A (en) 1978-12-28 1978-12-28 Composite photoreceptor for electrophotography
DE2938129A DE2938129C2 (en) 1978-09-22 1979-09-20 Electrophotographic recording material
US06/274,620 US4521504A (en) 1978-09-22 1981-06-17 Composite photosensitive material for use in electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16305978A JPS5589849A (en) 1978-12-28 1978-12-28 Composite photoreceptor for electrophotography

Publications (1)

Publication Number Publication Date
JPS5589849A true JPS5589849A (en) 1980-07-07

Family

ID=15766384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16305978A Pending JPS5589849A (en) 1978-09-22 1978-12-28 Composite photoreceptor for electrophotography

Country Status (1)

Country Link
JP (1) JPS5589849A (en)

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