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GB1077831A - Method and apparatus for multicolour xerographic printing - Google Patents

Method and apparatus for multicolour xerographic printing

Info

Publication number
GB1077831A
GB1077831A GB30967/64A GB3096764A GB1077831A GB 1077831 A GB1077831 A GB 1077831A GB 30967/64 A GB30967/64 A GB 30967/64A GB 3096764 A GB3096764 A GB 3096764A GB 1077831 A GB1077831 A GB 1077831A
Authority
GB
United Kingdom
Prior art keywords
drum
original
colour
successive
light
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.)
Expired
Application number
GB30967/64A
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1077831A publication Critical patent/GB1077831A/en
Expired 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

1,077,831. Xerographic multi-colour copying apparatus. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Aug.4, 1964 [July 25, 1963], No.30967/64. Heading G2H. Light passed through a reflector from the original 1 is first passed through one of a plurality of interchangeable filters in rotatable disc 5 for different colours and the monochromatic light is used to form an electrostatic image on a photo-conductive printing paper 10 carried on a rotating drum 8, and pre-charged at 12, the image being developed by the developing means 13, 14, 15, or 16 corresponding to the colour of the filter, and then fixed at 17. This process is repeated successively using the remaining colour filters 5 and developers and printing the monochromatic images in superposition on the same paper 10 which is returned to the same position for the successive exposures. Alternatively, the developed images formed on an earthed photo-conductive drum are transferred and fixed successively on to a sheet of ordinary paper carried on a second rotating drum contacting the first. A toner cleaning device is then provided. A half-tone screen may be used. The drum may be replaced by a belt or prismatic structure, and the electrostatic image may be transferred before development. The original is scanned by a movable unit comprising light source 2, slit 3, and optical systems 4 and 6 whereby light is directed from successive strips of the original through slit 7 adjacent drum 8. The register of the printing paper for successive images, the changing of filter and developer colour, and the projection of the original are all controlled by the successive coincidences of signal generator 18 and a detector 18a on the drum 8.
GB30967/64A 1963-07-25 1964-08-04 Method and apparatus for multicolour xerographic printing Expired GB1077831A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3743163 1963-07-25
US670922A US3531195A (en) 1963-07-25 1967-09-27 Method and apparatus for multicolor printing

Publications (1)

Publication Number Publication Date
GB1077831A true GB1077831A (en) 1967-08-02

Family

ID=26376549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30967/64A Expired GB1077831A (en) 1963-07-25 1964-08-04 Method and apparatus for multicolour xerographic printing

Country Status (4)

Country Link
US (1) US3531195A (en)
DE (1) DE1289430B (en)
FR (1) FR1401931A (en)
GB (1) GB1077831A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841751A (en) * 1969-06-04 1974-10-15 Xerox Corp Electrostatic color reproduction method
US3957367A (en) * 1974-09-16 1976-05-18 Xerox Corporation Color elastrostatographic printing machine
GB2123799A (en) * 1981-12-21 1984-02-08 Canon Kk Overlaying printed images on one side of a sheet

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1929671B2 (en) * 1968-06-12 1976-09-09 Canon KJC., Tokio ELECTROPHOTOGRAPHIC PROCESS FOR CREATING A MULTICOLORED COPY FROM A MULTICOLORED ORIGINAL ON A NON-SIZE IMAGE RECEIVING MATERIAL
GB1316598A (en) * 1969-05-22 1973-05-09 Canon Kk Electrophotographic copying apparatus
JPS4917650Y1 (en) * 1969-05-31 1974-05-08
US3734607A (en) * 1969-06-04 1973-05-22 Xerox Corp Color reproduction apparatus
US3724943A (en) * 1969-06-04 1973-04-03 Xerox Corp Color reproduction apparatus
US3999987A (en) * 1969-06-04 1976-12-28 Xerox Corporation Color reproduction method
CA946910A (en) * 1970-05-20 1974-05-07 Vaidevutis C. Draugelis Electrostatographic process and apparatus
US3918970A (en) * 1970-12-02 1975-11-11 Hitachi Ltd Color xerographic recording method
US3954463A (en) * 1971-01-27 1976-05-04 Xerox Corporation Method for electrostatic printing
US3729311A (en) * 1971-07-15 1973-04-24 Xerox Corp Electrostatic transfer method
JPS4829445A (en) * 1971-08-18 1973-04-19
US3756718A (en) * 1972-03-29 1973-09-04 Eastman Kodak Co Color printer
US3985435A (en) * 1972-12-29 1976-10-12 Ricoh Co., Ltd. Color electrophotographic apparatus
DE2312715C3 (en) * 1973-03-14 1981-12-17 Gruner + Jahr Ag & Co, 2210 Itzehoe Process for the production of electrographic color reproductions of a colored printing master for a control of color separations used in the production of gravure forms and a device for carrying out the process
JPS5847706B2 (en) * 1973-07-17 1983-10-24 京セラミタ株式会社 Tamoku Tekiseidenshashin Fukushiyaki
US3972608A (en) * 1973-08-01 1976-08-03 Canon Kabushiki Kaisha Color copying apparatus having one or more screen-like photosensitive members
US4025182A (en) * 1973-11-30 1977-05-24 Xerox Corporation Transfer apparatus for a color electrophotographic printing machine
GB1496336A (en) * 1973-12-13 1977-12-30 Canon Kk Colour copying apparatus
US3926516A (en) * 1974-02-20 1975-12-16 Xerox Corp Development apparatus for an electrostatographic printing machine
US4275134A (en) * 1974-07-30 1981-06-23 Canon Kabushiki Kaisha Electrophotographic method for reproducing a multicolor image
US3963341A (en) * 1974-10-29 1976-06-15 Xerox Corporation Color electrophotographic printing machine
US4801966A (en) * 1985-04-06 1989-01-31 Canon Kabushiki Kaisha Image forming apparatus with movable developing device
US4746955A (en) * 1986-09-16 1988-05-24 Colorocs Corporation Color filter interpositioning mechanism for color electrophotography

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566264A (en) * 1946-05-10 1951-08-28 Eastman Kodak Co Method of making color prints
US2571697A (en) * 1946-06-20 1951-10-16 Eastman Kodak Co Method for correcting photographic color prints
US2752833A (en) * 1950-07-15 1956-07-03 Carlyle W Jacob Apparatus for reproduction of pictures
US3045644A (en) * 1957-06-06 1962-07-24 Xerox Corp Two-color electrostatic printing apparatus
BE576841A (en) * 1958-03-20
US3060021A (en) * 1958-03-20 1962-10-23 Rca Corp Method for electrophotographically producing a multicolor picture
US3060019A (en) * 1958-07-22 1962-10-23 Rca Corp Color electrophotography
US3062094A (en) * 1958-12-29 1962-11-06 Xerox Corp Electrophotographic copying apparatus
US3057720A (en) * 1959-05-04 1962-10-09 Xerox Corp Xerographic color reproduction
NL299203A (en) * 1962-07-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841751A (en) * 1969-06-04 1974-10-15 Xerox Corp Electrostatic color reproduction method
US3957367A (en) * 1974-09-16 1976-05-18 Xerox Corporation Color elastrostatographic printing machine
GB2123799A (en) * 1981-12-21 1984-02-08 Canon Kk Overlaying printed images on one side of a sheet

Also Published As

Publication number Publication date
FR1401931A (en) 1965-06-04
US3531195A (en) 1970-09-29
DE1289430B (en) 1969-02-13

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