JPS55100573A - Multicolor electrophotographic copying method - Google Patents

Multicolor electrophotographic copying method

Info

Publication number
JPS55100573A
JPS55100573A JP754079A JP754079A JPS55100573A JP S55100573 A JPS55100573 A JP S55100573A JP 754079 A JP754079 A JP 754079A JP 754079 A JP754079 A JP 754079A JP S55100573 A JPS55100573 A JP S55100573A
Authority
JP
Japan
Prior art keywords
red color
photoreceptor
color
uniformly
red
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
JP754079A
Other languages
Japanese (ja)
Inventor
Toshio Sakai
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 JP754079A priority Critical patent/JPS55100573A/en
Publication of JPS55100573A publication Critical patent/JPS55100573A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a copy image of high resolution, by transferring the latent image once formed in the photoreceptor onto the surface of the photoreceptor.
CONSTITUTION: A laminated photoreceptor P consisting of a first photoconductive layer 2 chargeable in both positive and negative polarity and having sensitivity to blue and red color lights, and a second photoconductive layer 3 chargeable in negative polarity and having sensitivity to green color light is uniformly exposed on a conductive substrate 1 by means of a lamp 5 equipped with a red color filter 4 while it is primarily charged uniformly in negative polarity by means of a corona discharger 6. After secondary charging uniformly in positive polarity in the darkness by means of a corona discharger 7, the optical image of the original 8 possessing black color part 8a, white color ground part 8b and red color part 8c is radiated, and a red color toner 9 is supplied then to reproduce the red color part 8c. Uniformly charging in the same polarity as the latent image corresponding to the red color in the darkness by means of a corona discharger 10, the latent image corresponding to black color formed on the first photoconductive layer 2 is transferred onto the surface of the photoreceptor, and is exposed through the red color filter 11, then a black color toner 12 is supplied. As a result, an image clear in both red and black colors may be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP754079A 1979-01-24 1979-01-24 Multicolor electrophotographic copying method Pending JPS55100573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP754079A JPS55100573A (en) 1979-01-24 1979-01-24 Multicolor electrophotographic copying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP754079A JPS55100573A (en) 1979-01-24 1979-01-24 Multicolor electrophotographic copying method

Publications (1)

Publication Number Publication Date
JPS55100573A true JPS55100573A (en) 1980-07-31

Family

ID=11668614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP754079A Pending JPS55100573A (en) 1979-01-24 1979-01-24 Multicolor electrophotographic copying method

Country Status (1)

Country Link
JP (1) JPS55100573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149662A (en) * 1986-12-12 1988-06-22 Canon Inc Color image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149662A (en) * 1986-12-12 1988-06-22 Canon Inc Color image forming device

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