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JPS5655956A - Electrostatic printing method - Google Patents

Electrostatic printing method

Info

Publication number
JPS5655956A
JPS5655956A JP13199179A JP13199179A JPS5655956A JP S5655956 A JPS5655956 A JP S5655956A JP 13199179 A JP13199179 A JP 13199179A JP 13199179 A JP13199179 A JP 13199179A JP S5655956 A JPS5655956 A JP S5655956A
Authority
JP
Japan
Prior art keywords
light
sensitivity
photoconductive layer
charging
receptor
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
JP13199179A
Other languages
Japanese (ja)
Inventor
Tsutomu Sato
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 JP13199179A priority Critical patent/JPS5655956A/en
Priority to US06/141,514 priority patent/US4370398A/en
Priority to DE3016245A priority patent/DE3016245C2/en
Publication of JPS5655956A publication Critical patent/JPS5655956A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photoreceptors In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

PURPOSE: To enable multiple sheet copying with one time exposure, by laminating a photoconductive layer having sensitivity to light A, and a photoconductive layer having sensitivity to light B and transmitting light A on a conductive substrate in this order, and subjecting primary charging in the dark, secondary charging reverse in polarity, and imagewise exposure.
CONSTITUTION: The first photoconductive layer 3 having sensitivity to light A and a rectification property to corona charging, and the second photoconductive layer 5 transmitting light A and having sensitivity to light B are formed on conductive substrate 2 in this order to form photoreceptor 1. Receptor 1 is negative corona charged 6 in the dark. Since layer 3 has the rectification property, positive charge moves to the border between layers 3, 5. Then, positive corona charging 6 is carried out a little less than the primary charging, and receptor 1 is imagewise exposed using original 7. The obtained latent image is developed to form visible image 8, thus permitting multiple sheet copying to be obtained with one time exposure.
COPYRIGHT: (C)1981,JPO&Japio
JP13199179A 1979-04-26 1979-10-13 Electrostatic printing method Pending JPS5655956A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13199179A JPS5655956A (en) 1979-10-13 1979-10-13 Electrostatic printing method
US06/141,514 US4370398A (en) 1979-04-26 1980-04-18 Electrostatic copying process
DE3016245A DE3016245C2 (en) 1979-04-26 1980-04-26 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13199179A JPS5655956A (en) 1979-10-13 1979-10-13 Electrostatic printing method

Publications (1)

Publication Number Publication Date
JPS5655956A true JPS5655956A (en) 1981-05-16

Family

ID=15070992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13199179A Pending JPS5655956A (en) 1979-04-26 1979-10-13 Electrostatic printing method

Country Status (1)

Country Link
JP (1) JPS5655956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015114819A1 (en) * 2014-01-31 2015-08-06 富士電機株式会社 Electrophotographic photoreceptor and method for manufacturing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015114819A1 (en) * 2014-01-31 2015-08-06 富士電機株式会社 Electrophotographic photoreceptor and method for manufacturing same

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