DE69627403D1 - Farbbilderzeugungsgerät - Google Patents

Farbbilderzeugungsgerät

Info

Publication number
DE69627403D1
DE69627403D1 DE69627403T DE69627403T DE69627403D1 DE 69627403 D1 DE69627403 D1 DE 69627403D1 DE 69627403 T DE69627403 T DE 69627403T DE 69627403 T DE69627403 T DE 69627403T DE 69627403 D1 DE69627403 D1 DE 69627403D1
Authority
DE
Germany
Prior art keywords
image forming
forming apparatus
color image
color
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 - Lifetime
Application number
DE69627403T
Other languages
English (en)
Other versions
DE69627403T2 (de
Inventor
Toshihiro Kadowaki
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
Application granted granted Critical
Publication of DE69627403D1 publication Critical patent/DE69627403D1/de
Publication of DE69627403T2 publication Critical patent/DE69627403T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1204—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers involving the fast moving of an optical beam in the main scanning direction
    • G06K15/1209—Intensity control of the optical beam
    • 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
    • H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone
    • 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
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
DE69627403T 1995-01-18 1996-01-17 Farbbilderzeugungsgerät Expired - Lifetime DE69627403T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP581395 1995-01-18
JP7005813A JPH08195878A (ja) 1995-01-18 1995-01-18 画像処理装置

Publications (2)

Publication Number Publication Date
DE69627403D1 true DE69627403D1 (de) 2003-05-22
DE69627403T2 DE69627403T2 (de) 2004-02-12

Family

ID=11621529

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69637331T Expired - Lifetime DE69637331D1 (de) 1995-01-18 1996-01-17 Bildverarbeitungsvorrichtung
DE69627403T Expired - Lifetime DE69627403T2 (de) 1995-01-18 1996-01-17 Farbbilderzeugungsgerät

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69637331T Expired - Lifetime DE69637331D1 (de) 1995-01-18 1996-01-17 Bildverarbeitungsvorrichtung

Country Status (4)

Country Link
US (1) US6674547B1 (de)
EP (2) EP0723362B1 (de)
JP (1) JPH08195878A (de)
DE (2) DE69637331D1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3844180B2 (ja) * 1999-09-27 2006-11-08 リコープリンティングシステムズ株式会社 分割分散ｐｗｍ階調処理装置及びこれを備えたレーザプリンタ
JP2003274198A (ja) * 2002-03-19 2003-09-26 Fuji Xerox Co Ltd 画像処理方法及び画像処理装置
JP4360335B2 (ja) * 2005-03-15 2009-11-11 セイコーエプソン株式会社 カラー画像形成装置、カラー画像形成システム、カラー画像処理方法及びプログラム
JP4502390B2 (ja) * 2005-03-30 2010-07-14 キヤノン株式会社 画像処理装置およびその方法
EP1948668A1 (de) * 2005-11-16 2008-07-30 Dow Corning Corporation Organosilane und ihre herstellung und verwendung in elastomerzusammensetzungen
JP4814820B2 (ja) * 2007-03-26 2011-11-16 株式会社リコー 画像形成装置、画像形成方法、及び画像形成プログラム
JP5751004B2 (ja) * 2011-05-16 2015-07-22 株式会社リコー 画像形成装置、画像処理装置、画像処理方法及び画像処理プログラム
JP6170450B2 (ja) * 2014-02-26 2017-07-26 株式会社沖データ 画像形成装置及び画像形成方法

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3689216T2 (de) 1985-08-20 1994-03-03 Canon Kk Bildverarbeitungsgerät.
US4870499A (en) 1985-08-29 1989-09-26 Canon Kabushiki Kaisha Image processing apparatus
US5029227A (en) 1985-08-30 1991-07-02 Canon Kabushiki Kaisha Image processing apparatus
DE3650773T2 (de) 1985-11-18 2002-12-05 Canon K.K., Tokio/Tokyo Bilderzeugungsgerät
DE68928557T2 (de) 1988-11-14 1998-05-14 Canon Kk Bildverarbeitungsgerät und -methode
US5574563A (en) * 1989-05-10 1996-11-12 Canon Kabushiki Kaisha Method and apparatus for forming images at different degrees of resolution
US5113252A (en) * 1989-05-10 1992-05-12 Canon Kabushiki Kaisha Image processing apparatus including means for performing electrical thinning and fattening processing
US5251023A (en) * 1989-08-02 1993-10-05 Canon Kabushiki Kaisha Image processing method including means for judging a chromatic portion of an image
EP0411911B1 (de) 1989-08-02 1996-03-27 Canon Kabushiki Kaisha Bildverarbeitungsgerät
US5124802A (en) 1989-09-26 1992-06-23 Canon Kabushiki Kaisha Electrostatic lasar printer with a short side length of a modulation area formed by pulse width modulation set relative to a detected toner particle size
JPH03110596A (ja) 1989-09-26 1991-05-10 Canon Inc 印刷装置
JP3124016B2 (ja) 1990-03-16 2001-01-15 株式会社東芝 画像形成装置
JP2560133B2 (ja) * 1990-05-29 1996-12-04 大日本スクリーン製造株式会社 画像統合処理装置
JP3184512B2 (ja) * 1990-06-20 2001-07-09 キャノン株式会社 画像処理装置、及び画像処理方法
DE69131369T2 (de) 1990-07-31 1999-12-16 Canon K.K., Tokio/Tokyo Gerät und Verfahren zur Bildverarbeitung
JP3102805B2 (ja) * 1990-10-23 2000-10-23 株式会社リコー 図形出力装置
JPH04320864A (ja) * 1991-04-19 1992-11-11 Canon Inc 記録装置およびプリンタ制御装置およびプリンタ装置
US5841552A (en) * 1991-04-19 1998-11-24 Canon Kabushiki Kaisha Image processed apparatus for processing images having different resolutions
JPH04325264A (ja) * 1991-04-24 1992-11-13 Canon Inc 印字装置
US5436644A (en) 1991-09-18 1995-07-25 Konica Corporation Image forming method
JP2692482B2 (ja) 1992-02-14 1997-12-17 日本ビクター株式会社 光学的記録における階調再現方法
EP0564868A3 (en) 1992-04-06 1993-11-10 Konishiroku Photo Ind Image forming apparatus
JPH05316377A (ja) * 1992-05-11 1993-11-26 Konica Corp 画像処理装置
JP2871960B2 (ja) * 1992-07-23 1999-03-17 キヤノン株式会社 印刷方法及び装置
US5327524A (en) * 1992-12-28 1994-07-05 Eastman Kodak Company Electrophotographic recording with multiple-bit grey level LED printhead with enhanced addressability
US5495278A (en) * 1993-01-15 1996-02-27 Fuji Xerox Co., Ltd. Image forming apparatus including a pulse width modulator

Also Published As

Publication number Publication date
US6674547B1 (en) 2004-01-06
EP1241868B1 (de) 2007-11-21
EP1241868A1 (de) 2002-09-18
DE69627403T2 (de) 2004-02-12
EP0723362A1 (de) 1996-07-24
DE69637331D1 (de) 2008-01-03
JPH08195878A (ja) 1996-07-30
EP0723362B1 (de) 2003-04-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition