JPS55135851A - Composite photoreceptor for electrophotography - Google Patents

Composite photoreceptor for electrophotography

Info

Publication number
JPS55135851A
JPS55135851A JP4380079A JP4380079A JPS55135851A JP S55135851 A JPS55135851 A JP S55135851A JP 4380079 A JP4380079 A JP 4380079A JP 4380079 A JP4380079 A JP 4380079A JP S55135851 A JPS55135851 A JP S55135851A
Authority
JP
Japan
Prior art keywords
layer
amorphous
light
red
photoconductive layer
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
JP4380079A
Other languages
Japanese (ja)
Inventor
Masao Yoshikawa
Seiichi Sakuma
Tsutomu Sato
Kiyoshi Tanigawa
Shuichi Tsushima
Tsutomu Ishida
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 JP4380079A priority Critical patent/JPS55135851A/en
Publication of JPS55135851A publication Critical patent/JPS55135851A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE: To obtain a high quality 2-color copy in one step of imagewise exposure, by forming the first photoconductive layer consisting mainly of amorphous Se, or amorphous Se containing Te, and different in sensitivity to a chromatic color light, and a composite the second photoconductive layer of a specifed charge generating layer and a specified charge transfer layer.
CONSTITUTION: The first photoconductive layer 12 containing amorphous Se or amorphous Se with 20 or less weight % Te added and having sensitivity to a nonred light is formed on electroconductive substrate 11. Photoreceptor 1 is formed by providing on layer 12 the second photoconductive layer, sensitive to a red light, of composite layers comprising 0.5W8μ thick charge generating layer 141 consisting mainly of a eutectic complex of a pyrilium type dye and a polycarbonate resin, and 2W49μ thick charge transfer layer 142 consisting mainly of a triphenylmethane derivative and a polycarbonate resin prepared by using a solvent dissolving this eutectic or a mixed solvent containing this solvent. The photoreceptor surface is corona charged to positive potential, uniformly exposed to a red light, negatively corona charged, and then exposed to the light image of original 2. A black and red 2-color image is obtained by developing the surface with toners TB and TA reverse in polarity to the surface charge corresponding to black part BL, white part W, and red part R.
COPYRIGHT: (C)1980,JPO&Japio
JP4380079A 1979-04-11 1979-04-11 Composite photoreceptor for electrophotography Pending JPS55135851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4380079A JPS55135851A (en) 1979-04-11 1979-04-11 Composite photoreceptor for electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4380079A JPS55135851A (en) 1979-04-11 1979-04-11 Composite photoreceptor for electrophotography

Publications (1)

Publication Number Publication Date
JPS55135851A true JPS55135851A (en) 1980-10-23

Family

ID=12673814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4380079A Pending JPS55135851A (en) 1979-04-11 1979-04-11 Composite photoreceptor for electrophotography

Country Status (1)

Country Link
JP (1) JPS55135851A (en)

Similar Documents

Publication Publication Date Title
US4335194A (en) Two color electrophotographic process and material
US4407917A (en) Information image synthesizing and copying method
US4524117A (en) Electrophotographic method for the formation of two-colored images
US3912505A (en) Color imaging method employing a monolayer of beads
US3615392A (en) Electrophotographic reproduction of originals containing both multicolor and line areas
JPS561059A (en) Electrophotographic receptor
JPS5687055A (en) Image synthesizing and recording method
JPS559557A (en) Photoreceptor for electrophotography
US3681065A (en) Dye transfer color electrophotography
JPS55135851A (en) Composite photoreceptor for electrophotography
JPS5734564A (en) Three-color electrophotographic copying method
US4077802A (en) Single color electrophotographic copy process
JPS5529845A (en) Photoreceptor for electrophotography
JPS55135847A (en) Composite photoreceptor for electrophotography
JPS5412739A (en) Two color electrophotographic copying method
JPS55135846A (en) Composite photoreceptor for electrophotography
JPS561953A (en) Two-color copying method
JPS55133053A (en) Composite photoreceptor for electrophotography
JPS5565960A (en) Electrophotographic receptor
JPS54112634A (en) Electrophotographic process and device
JPS5573063A (en) Two color electrophotographic copying method
JPS5621155A (en) Color electrophotographic method
JPS55135848A (en) Composite photoreceptor for electrophotography
JPS55135850A (en) Composite photoreceptor for electrophotography
JPS55163545A (en) Two-color electrophotographic copying method and its device