GB2191657B - Method and apparatus for multicolor image forming - Google Patents
Method and apparatus for multicolor image formingInfo
- Publication number
- GB2191657B GB2191657B GB08716525A GB8716525A GB2191657B GB 2191657 B GB2191657 B GB 2191657B GB 08716525 A GB08716525 A GB 08716525A GB 8716525 A GB8716525 A GB 8716525A GB 2191657 B GB2191657 B GB 2191657B
- Authority
- GB
- United Kingdom
- Prior art keywords
- image forming
- multicolor image
- multicolor
- forming
- image
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/50—Picture reproducers
- H04N1/506—Reproducing the colour component signals picture-sequentially, e.g. with reproducing heads spaced apart from one another in the subscanning direction
- H04N1/508—Reproducing the colour component signals picture-sequentially, e.g. with reproducing heads spaced apart from one another in the subscanning direction using the same reproducing head for two or more colour components
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/52—Circuits or arrangements for halftone screening
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6016—Conversion to subtractive colour signals
- H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Color Electrophotography (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15044884A JPS6127566A (en) | 1984-07-18 | 1984-07-18 | Color image forming device |
JP15045084A JPS6127565A (en) | 1984-07-18 | 1984-07-18 | Multi-color image forming device |
JP15044984A JPS6127567A (en) | 1984-07-18 | 1984-07-18 | Color image forming device |
JP59150451A JPH079550B2 (en) | 1984-07-18 | 1984-07-18 | Multicolor image forming method |
GB08517625A GB2164222B (en) | 1984-07-18 | 1985-07-12 | Method and apparatus for multicolor image forming |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8716525D0 GB8716525D0 (en) | 1987-08-19 |
GB2191657A GB2191657A (en) | 1987-12-16 |
GB2191657B true GB2191657B (en) | 1988-09-28 |
Family
ID=27516598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08716525A Expired GB2191657B (en) | 1984-07-18 | 1987-07-14 | Method and apparatus for multicolor image forming |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2191657B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6418742B2 (en) * | 2014-01-21 | 2018-11-07 | キヤノン株式会社 | Image forming apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4149183A (en) * | 1976-05-21 | 1979-04-10 | Xerox Corporation | Electronic halftone generator |
GB2120896B (en) * | 1982-04-06 | 1987-01-28 | Canon Kk | Half-tone facsimile system |
GB2139450B (en) * | 1983-03-08 | 1987-12-16 | Canon Kk | Color picture forming apparatus |
-
1987
- 1987-07-14 GB GB08716525A patent/GB2191657B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8716525D0 (en) | 1987-08-19 |
GB2191657A (en) | 1987-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990712 |