JPS56107250A - Copying method - Google Patents

Copying method

Info

Publication number
JPS56107250A
JPS56107250A JP936380A JP936380A JPS56107250A JP S56107250 A JPS56107250 A JP S56107250A JP 936380 A JP936380 A JP 936380A JP 936380 A JP936380 A JP 936380A JP S56107250 A JPS56107250 A JP S56107250A
Authority
JP
Japan
Prior art keywords
color
sensitivity
switch
render
laminating
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
JP936380A
Other languages
Japanese (ja)
Inventor
Shuichi Karasawa
Fuyuhiko Matsumoto
Shuichi Tsushima
Masatoshi Saito
Tsutomu Ishida
Kunihiko Ikeda
Masao Yoshikawa
Tsutomu Sato
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 JP936380A priority Critical patent/JPS56107250A/en
Priority to DE19813102960 priority patent/DE3102960A1/en
Priority to US06/229,730 priority patent/US4413899A/en
Publication of JPS56107250A publication Critical patent/JPS56107250A/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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G03G15/0147—Structure of complete machines using a single reusable electrographic recording member
    • G03G15/0152—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G03G15/0147—Structure of complete machines using a single reusable electrographic recording member
    • G03G15/0152—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member
    • G03G15/0163—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member primary transfer to the final recording medium

Abstract

PURPOSE:To freely change over a copyimg mode to optional one for copying, by subjecting a composite photoreceptor made by laminating >=2 photoconductive layers to charging in >=2 times and exposing to form 3 kinds of electrostatic latent images of positive, negative, and zero potentials. CONSTITUTION:Each predetermined voltage is applied to primary and secondary charger 2, 3 and the first and second developing devices 15, 19, and switch 3a, switch 23 for spare transfer charger 22, and switch 27 for transfer charger 21 are set to a potential corresponding to each copying mode, and color (b) filter 11 is changed over to render the surface potentials of parts of color (a) and color (b) of a 2-color original reverse in polarity, and to render the surface potentials corresponding to the color of ground of an original and the color of an image erasion of which is desired, near zero. An electrostatic latent image is formed by subjecting composite photoreceptor 1, made by laminating on conductive substrate 1a the first photoconductive layer 1b having sensitivity to color (b), and the second photoconductive layer 1c transmitting color (b) light, and having sensitivity to visible light except color (b) but no sensitivity to color (b), to primary and secondary charging and imagewise exposure.
JP936380A 1980-01-30 1980-01-31 Copying method Pending JPS56107250A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP936380A JPS56107250A (en) 1980-01-31 1980-01-31 Copying method
DE19813102960 DE3102960A1 (en) 1980-01-30 1981-01-29 COPYING METHOD AND COPYING DEVICE
US06/229,730 US4413899A (en) 1980-01-30 1981-01-29 Copying method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP936380A JPS56107250A (en) 1980-01-31 1980-01-31 Copying method

Publications (1)

Publication Number Publication Date
JPS56107250A true JPS56107250A (en) 1981-08-26

Family

ID=11718387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP936380A Pending JPS56107250A (en) 1980-01-30 1980-01-31 Copying method

Country Status (1)

Country Link
JP (1) JPS56107250A (en)

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