JPS5714861A - Masking method in color electrophotography - Google Patents

Masking method in color electrophotography

Info

Publication number
JPS5714861A
JPS5714861A JP8852380A JP8852380A JPS5714861A JP S5714861 A JPS5714861 A JP S5714861A JP 8852380 A JP8852380 A JP 8852380A JP 8852380 A JP8852380 A JP 8852380A JP S5714861 A JPS5714861 A JP S5714861A
Authority
JP
Japan
Prior art keywords
yellow toner
photoreceptor
charge
magenta
charged
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
JP8852380A
Other languages
Japanese (ja)
Inventor
Kakuji Murakami
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 JP8852380A priority Critical patent/JPS5714861A/en
Publication of JPS5714861A publication Critical patent/JPS5714861A/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 improve color reproducibility with simple masking by moving a photoreceptor which is charged to a polarity reversed from that of a recording sheet developed with a yellow toner and is exposed with a green filter close to said recording sheet and transferring part of the yellow toner to the photoreceptor. CONSTITUTION:A sheet 2 developed with a yellow toner is stuck with more than necessary yellow toner in a magenta part and a blue part. In order to reduce this, a photoreceptor 4 is charged to (+) polarity and is exposed with a green filter when the yellow toner is charged to (-) polarity, and this provides the photoreceptor 4 which holds (+) charge in the parts of magenta, blue, red, and black and has 0 charge in other. If this photoreceptor 4 is moved close to the sheet 2 and conductive bases 5, 6 are grounded, the yellow toner of (-) charge is attracted to the (+) charge of the photoreceptor 4 and is transferred thereto. The pickup of the yellow toner in the magenta part and the blue part decreases. If a magenta image and a cyan image are superposed on these, the color images of color reproducibility better than that in the prior art are obtained.
JP8852380A 1980-07-01 1980-07-01 Masking method in color electrophotography Pending JPS5714861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8852380A JPS5714861A (en) 1980-07-01 1980-07-01 Masking method in color electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8852380A JPS5714861A (en) 1980-07-01 1980-07-01 Masking method in color electrophotography

Publications (1)

Publication Number Publication Date
JPS5714861A true JPS5714861A (en) 1982-01-26

Family

ID=13945187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8852380A Pending JPS5714861A (en) 1980-07-01 1980-07-01 Masking method in color electrophotography

Country Status (1)

Country Link
JP (1) JPS5714861A (en)

Similar Documents

Publication Publication Date Title
JPS5574557A (en) 3-color electrophotographic copying method
JPS5714861A (en) Masking method in color electrophotography
JPS5687055A (en) Image synthesizing and recording method
JPS56162755A (en) Multicolor copying system
JPS57109961A (en) Two-color copying method and its apparatus
JPS57102674A (en) Electrophotographic copying machine
GB1316499A (en) Colour reproduction apparatus
GB2002133A (en) Process and apparatus for reproducing colour prints
JPS5536815A (en) Two color image forming method
JPS5587173A (en) Multicolor developing method
JPS5462830A (en) Two-color electrophotographic copying method
JPS55100573A (en) Multicolor electrophotographic copying method
JPS57124372A (en) Two-color recording method
JPS62135851A (en) Color image forming device
JPS5444531A (en) Electrophotographic dichromatic copying method
JPS55159472A (en) Electrophotographic copier
JPS57115562A (en) Multi-color electronic photographic method
JPS57104941A (en) Image formation
JPS5458444A (en) Electrophotographic dichromatic reproducing method
JPS5459140A (en) Electrophotographic dichromatic reproducing method
JPS54143138A (en) Color zerography
JPS5665145A (en) Electrophotographic receptor
JPS5543532A (en) Two color electrophotographic copying method
JPS5674258A (en) Color image selective copying method
JPS5476158A (en) Forming method for electrostatic charge latent image