JPS57101855A - Two color copying method - Google Patents

Two color copying method

Info

Publication number
JPS57101855A
JPS57101855A JP55179206A JP17920680A JPS57101855A JP S57101855 A JPS57101855 A JP S57101855A JP 55179206 A JP55179206 A JP 55179206A JP 17920680 A JP17920680 A JP 17920680A JP S57101855 A JPS57101855 A JP S57101855A
Authority
JP
Japan
Prior art keywords
image
color
black
visible
transferred
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
JP55179206A
Other languages
Japanese (ja)
Inventor
Toshio Sakai
Toshio Kaneko
Koji Sakamoto
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 JP55179206A priority Critical patent/JPS57101855A/en
Publication of JPS57101855A publication Critical patent/JPS57101855A/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 obtain a two color copy with simple constitution by transferring a black visible image on an intermediate transfer medium, then further transfering a B color visible image and further transferring these simultaneously on a recording sheet. CONSTITUTION:When an original O having a black image A, a B color image B is exposed to a photoreceptor 1 having sensitivity to B color light the potential in a white ground part W and the B color image B part goes 0, and the latent image of the black image A is formed. This is visualized by a toner Talpha, and is destaticized with white light LW, after which it is recharged together with the visible image A, then the black visible image in the part of the image A acts as a shielding object and is hardly charged, so that the visible image A is transferred to an intermediate transfer medium 2. Thence, if the image is exposed through a filter F shutting off the B color light, the latent image of only the B color is formed and visualized. Simularly if the visible imges of the two colors transferred to the medium 2 are transferred simultaneously to a recording sheet S, the two color copy is obtained.
JP55179206A 1980-12-18 1980-12-18 Two color copying method Pending JPS57101855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55179206A JPS57101855A (en) 1980-12-18 1980-12-18 Two color copying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55179206A JPS57101855A (en) 1980-12-18 1980-12-18 Two color copying method

Publications (1)

Publication Number Publication Date
JPS57101855A true JPS57101855A (en) 1982-06-24

Family

ID=16061775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55179206A Pending JPS57101855A (en) 1980-12-18 1980-12-18 Two color copying method

Country Status (1)

Country Link
JP (1) JPS57101855A (en)

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