JPS56121051A - Color electrophotography method - Google Patents

Color electrophotography method

Info

Publication number
JPS56121051A
JPS56121051A JP2376980A JP2376980A JPS56121051A JP S56121051 A JPS56121051 A JP S56121051A JP 2376980 A JP2376980 A JP 2376980A JP 2376980 A JP2376980 A JP 2376980A JP S56121051 A JPS56121051 A JP S56121051A
Authority
JP
Japan
Prior art keywords
color
photoreceptor
red
blue
green
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
JP2376980A
Other languages
Japanese (ja)
Inventor
Masatoshi Saito
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 JP2376980A priority Critical patent/JPS56121051A/en
Publication of JPS56121051A publication Critical patent/JPS56121051A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/01—Electrographic processes using a charge pattern for multicoloured copies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To realize full color copying having high efficiency by a simple constitution without color separation and color matching, by forming latent images, which correspond to blue, red and green colors having prescribed polarities and potentials, on a photoreceptor having a prescribed photoconductive layer. CONSTITUTION:Photoreceptor 15 is formed by laminating the 1st photoconductive layer 36 and the 2nd photoelectric layer 37 of crystal of an organic material on photoconductive substrate 35 by selenium vapor deposition or the like. The surface potential of photoreceptor 15 is held at a positive potential by primary charging and also held zero in the dark by secondary charging. Picture exposure device 10 projects an orginal light image on it. The photoreceptor potential at a part exposed in blue color becomes negative, a part of red light becomes a positive potential, and a part of green light becomes a positive potential lower than that of the red light part. Electrostatic latent images that correspond to those colors are developed through developing devices 20, 21 and 22 by using blue, red and green toners charged at counter polarities to form a picture sticking three color toners, so that color copying can be done with high efficiency.
JP2376980A 1980-02-27 1980-02-27 Color electrophotography method Pending JPS56121051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2376980A JPS56121051A (en) 1980-02-27 1980-02-27 Color electrophotography method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2376980A JPS56121051A (en) 1980-02-27 1980-02-27 Color electrophotography method

Publications (1)

Publication Number Publication Date
JPS56121051A true JPS56121051A (en) 1981-09-22

Family

ID=12119544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2376980A Pending JPS56121051A (en) 1980-02-27 1980-02-27 Color electrophotography method

Country Status (1)

Country Link
JP (1) JPS56121051A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007323130A (en) * 2006-05-30 2007-12-13 Laurel Seiki Kk Bill processor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007323130A (en) * 2006-05-30 2007-12-13 Laurel Seiki Kk Bill processor
US8113508B2 (en) 2006-05-30 2012-02-14 Laurel Precision Machines Co., Ltd. Bill processor

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