GB2334124B - Printing apparatus - Google Patents

Printing apparatus

Info

Publication number
GB2334124B
GB2334124B GB9802627A GB9802627A GB2334124B GB 2334124 B GB2334124 B GB 2334124B GB 9802627 A GB9802627 A GB 9802627A GB 9802627 A GB9802627 A GB 9802627A GB 2334124 B GB2334124 B GB 2334124B
Authority
GB
United Kingdom
Prior art keywords
printing apparatus
printing
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 - Fee Related
Application number
GB9802627A
Other versions
GB9802627D0 (en
GB2334124A (en
Inventor
Richard Anthony Kirk
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.)
Canon Inc
Original Assignee
Canon 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
Application filed by Canon Inc filed Critical Canon Inc
Priority to GB9802627A priority Critical patent/GB2334124B/en
Publication of GB9802627D0 publication Critical patent/GB9802627D0/en
Publication of GB2334124A publication Critical patent/GB2334124A/en
Application granted granted Critical
Publication of GB2334124B publication Critical patent/GB2334124B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/52—Arrangement for printing a discrete number of tones, not covered by group B41J2/205, e.g. applicable to two or more kinds of printing or marking process
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2215/00—Arrangements for producing a permanent visual presentation of the output data
    • G06K2215/0002—Handling the output data
    • G06K2215/0005—Accepting output data; Preparing data for the controlling system
    • G06K2215/0014—Transforming the printer input data into internal codes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2215/00—Arrangements for producing a permanent visual presentation of the output data
    • G06K2215/0002—Handling the output data
    • G06K2215/0062—Handling the output data combining generic and host data, e.g. filling a raster
    • G06K2215/0071—Post-treatment of the composed image, e.g. compression, rotation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Color, Gradation (AREA)
GB9802627A 1998-02-06 1998-02-06 Printing apparatus Expired - Fee Related GB2334124B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9802627A GB2334124B (en) 1998-02-06 1998-02-06 Printing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9802627A GB2334124B (en) 1998-02-06 1998-02-06 Printing apparatus

Publications (3)

Publication Number Publication Date
GB9802627D0 GB9802627D0 (en) 1998-04-01
GB2334124A GB2334124A (en) 1999-08-11
GB2334124B true GB2334124B (en) 2001-11-07

Family

ID=10826632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9802627A Expired - Fee Related GB2334124B (en) 1998-02-06 1998-02-06 Printing apparatus

Country Status (1)

Country Link
GB (1) GB2334124B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6804417B1 (en) * 2000-03-31 2004-10-12 Hewlett-Packard Development Company, L.P. Pixel depletion technique
GB2382905B (en) * 2001-12-04 2005-08-31 Software 2000 Ltd Printer ink reduction
JP4321338B2 (en) * 2004-04-19 2009-08-26 ブラザー工業株式会社 Printing system and program
US20050248780A1 (en) * 2004-05-05 2005-11-10 Piatt Michael J Digital printing highlights and image processing workflow
WO2011016972A1 (en) 2009-08-07 2011-02-10 International Paper Company System, method and software for reducing printer colorant usage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004575A1 (en) * 1987-11-02 1989-05-18 Eastman Kodak Company Image discrimination with continuous tone area thinning

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004575A1 (en) * 1987-11-02 1989-05-18 Eastman Kodak Company Image discrimination with continuous tone area thinning

Also Published As

Publication number Publication date
GB9802627D0 (en) 1998-04-01
GB2334124A (en) 1999-08-11

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Legal Events

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

Effective date: 20150206