JPS55129353A - Electrophotographic composite receptor - Google Patents

Electrophotographic composite receptor

Info

Publication number
JPS55129353A
JPS55129353A JP3665679A JP3665679A JPS55129353A JP S55129353 A JPS55129353 A JP S55129353A JP 3665679 A JP3665679 A JP 3665679A JP 3665679 A JP3665679 A JP 3665679A JP S55129353 A JPS55129353 A JP S55129353A
Authority
JP
Japan
Prior art keywords
layer
red
sensitivity
receptor
black
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
JP3665679A
Other languages
Japanese (ja)
Inventor
Akiyoshi Yasumori
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 JP3665679A priority Critical patent/JPS55129353A/en
Publication of JPS55129353A publication Critical patent/JPS55129353A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a dichromatic image by laminating the first photoconductive layer and the second photocondutive layer on an electrically conductive substrate in order and adding a coloring agent, to the second layer, which cuts a specified wavelength region of the sensitive wavelength region of the first layer and controls the sensitivity of the second layer.
CONSTITUTION: On electrically conductive substrate 11 the first photoconductive layer 12 made of photosemiconductor having sensitivity all over the visible light region is formed, and on layer 12 the second photoconductive layer 14 having sensitivity to red light and absorbing red light is formed to manufacture receptor 1 in which the red sensitivity of layer 12 has been canceled off. By subjecting receptor 1 to primary charging the surface of layer 14 is negatively charged, and layer 12 is positively charged. After uniformly exposing receptor 1 to red light charging of the reverse polarity to the primary charging is carried out, and black BL-white W-red R original 2 is exposed. Layers 12, 14 are charged positively and negatively and developed with black toner Tb and red toner Ta of reverse polarities. Thus, by a single exposure of original 2 a black-red-white dichromatic image is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP3665679A 1979-03-28 1979-03-28 Electrophotographic composite receptor Pending JPS55129353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3665679A JPS55129353A (en) 1979-03-28 1979-03-28 Electrophotographic composite receptor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3665679A JPS55129353A (en) 1979-03-28 1979-03-28 Electrophotographic composite receptor

Publications (1)

Publication Number Publication Date
JPS55129353A true JPS55129353A (en) 1980-10-07

Family

ID=12475890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3665679A Pending JPS55129353A (en) 1979-03-28 1979-03-28 Electrophotographic composite receptor

Country Status (1)

Country Link
JP (1) JPS55129353A (en)

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