GB1077831A - Method and apparatus for multicolour xerographic printing - Google Patents
Method and apparatus for multicolour xerographic printingInfo
- 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
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)
- Combination Of More Than One Step In Electrophotography (AREA)
- Color 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.
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)
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)
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 | ||
US3999987A (en) * | 1969-06-04 | 1976-12-28 | Xerox Corporation | Color reproduction method |
US3724943A (en) * | 1969-06-04 | 1973-04-03 | Xerox Corp | Color reproduction apparatus |
US3734607A (en) * | 1969-06-04 | 1973-05-22 | Xerox Corp | Color reproduction apparatus |
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 |
DE2459108C2 (en) * | 1973-12-13 | 1987-05-07 | Canon K.K., Tokio/Tokyo | Color image forming device |
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)
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 |
US3060021A (en) * | 1958-03-20 | 1962-10-23 | Rca Corp | Method for electrophotographically producing a multicolor picture |
BE576841A (en) * | 1958-03-20 | |||
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 |
-
1964
- 1964-07-23 FR FR982739A patent/FR1401931A/en not_active Expired
- 1964-07-25 DE DEK53569A patent/DE1289430B/en active Pending
- 1964-08-04 GB GB30967/64A patent/GB1077831A/en not_active Expired
-
1967
- 1967-09-27 US US670922A patent/US3531195A/en not_active Expired - Lifetime
Cited By (3)
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 |
---|---|
DE1289430B (en) | 1969-02-13 |
FR1401931A (en) | 1965-06-04 |
US3531195A (en) | 1970-09-29 |
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