JPS5639547A - Composite electrophotographic receptor - Google Patents

Composite electrophotographic receptor

Info

Publication number
JPS5639547A
JPS5639547A JP11413479A JP11413479A JPS5639547A JP S5639547 A JPS5639547 A JP S5639547A JP 11413479 A JP11413479 A JP 11413479A JP 11413479 A JP11413479 A JP 11413479A JP S5639547 A JPS5639547 A JP S5639547A
Authority
JP
Japan
Prior art keywords
color
light
polarity
image
sensitivity
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
JP11413479A
Other languages
Japanese (ja)
Other versions
JPS638459B2 (en
Inventor
Kiyoshi Tanigawa
Masao Yoshikawa
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 JP11413479A priority Critical patent/JPS5639547A/en
Publication of JPS5639547A publication Critical patent/JPS5639547A/en
Publication of JPS638459B2 publication Critical patent/JPS638459B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE: To make 2-color recording sharply and easily, by providing 2 kinds of photoconductive layers capable of accepting and retaining charges different in polarity from each other.
CONSTITUTION: First photoconductive layer 3, 3' made of an Se, Se-Te, or Se-As type photoconductor having sensitivity to color light B transmitted by the second photoconductive layer 4, and layer 4 consisting chiefly of a eutectic complex salt of a pyrylium type dye and an electrically insulating polymer, and of a silicone oil, and having sensitivity to color light A and transmitting the other light are formed on conductive substrate 2 to prepare a composite electrophotographic receptor. The receptor undergoes the primary charging (a), next, the secondary charging reverse to (a) in polarity and simultaneous or subsequent uniform exposure to color light A (b), and then, exposure to the light image of the 2-color original (c), resulting in forming an electrostatic latent image consisting of color A and black parts, reverse to each other in polarity, and thus, a 2-color sharp copy can be obtained by developing this image with 2-color toners.
COPYRIGHT: (C)1981,JPO&Japio
JP11413479A 1979-09-07 1979-09-07 Composite electrophotographic receptor Granted JPS5639547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11413479A JPS5639547A (en) 1979-09-07 1979-09-07 Composite electrophotographic receptor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11413479A JPS5639547A (en) 1979-09-07 1979-09-07 Composite electrophotographic receptor

Publications (2)

Publication Number Publication Date
JPS5639547A true JPS5639547A (en) 1981-04-15
JPS638459B2 JPS638459B2 (en) 1988-02-23

Family

ID=14629986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11413479A Granted JPS5639547A (en) 1979-09-07 1979-09-07 Composite electrophotographic receptor

Country Status (1)

Country Link
JP (1) JPS5639547A (en)

Also Published As

Publication number Publication date
JPS638459B2 (en) 1988-02-23

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