GB2191657B - Method and apparatus for multicolor image forming - Google Patents

Method and apparatus for multicolor image forming

Info

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
Application number
GB08716525A
Other versions
GB2191657A (en
GB8716525D0 (en
Inventor
Hisashi Shoji
Satoshi Haneda
Seiichiro Hiratsuka
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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
Priority claimed from JP59150451A external-priority patent/JPH079550B2/en
Priority claimed from JP15045084A external-priority patent/JPS6127565A/en
Priority claimed from JP15044884A external-priority patent/JPS6127566A/en
Priority claimed from JP15044984A external-priority patent/JPS6127567A/en
Priority claimed from GB08517625A external-priority patent/GB2164222B/en
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of GB8716525D0 publication Critical patent/GB8716525D0/en
Publication of GB2191657A publication Critical patent/GB2191657A/en
Application granted granted Critical
Publication of GB2191657B publication Critical patent/GB2191657B/en
Expired legal-status Critical Current

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
GB08716525A 1984-07-18 1987-07-14 Method and apparatus for multicolor image forming Expired GB2191657B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP59150451A JPH079550B2 (en) 1984-07-18 1984-07-18 Multicolor image forming method
JP15045084A JPS6127565A (en) 1984-07-18 1984-07-18 Multi-color image forming device
JP15044884A JPS6127566A (en) 1984-07-18 1984-07-18 Color image forming device
JP15044984A JPS6127567A (en) 1984-07-18 1984-07-18 Color image forming device
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB2191657A (en) 1987-12-16
GB8716525D0 (en) 1987-08-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990712