DE69628539D1 - Einstellung der Punktgrösse für Laserdrucker - Google Patents

Einstellung der Punktgrösse für Laserdrucker

Info

Publication number
DE69628539D1
DE69628539D1 DE69628539T DE69628539T DE69628539D1 DE 69628539 D1 DE69628539 D1 DE 69628539D1 DE 69628539 T DE69628539 T DE 69628539T DE 69628539 T DE69628539 T DE 69628539T DE 69628539 D1 DE69628539 D1 DE 69628539D1
Authority
DE
Germany
Prior art keywords
setting
dot size
laser printers
printers
laser
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
DE69628539T
Other languages
English (en)
Other versions
DE69628539T2 (de
Inventor
Jeffrey L Trask
G Esplin
David S Pitou
Richard H Benear
James A Kazakoff
Brian Hoffmann
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69628539D1 publication Critical patent/DE69628539D1/de
Publication of DE69628539T2 publication Critical patent/DE69628539T2/de
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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Laser Beam Printer (AREA)
  • Color, Gradation (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Facsimile Scanning Arrangements (AREA)
DE69628539T 1996-03-06 1996-10-17 Einstellung der Punktgrösse für Laserdrucker Expired - Fee Related DE69628539T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US611890 1996-03-06
US08/611,890 US5793406A (en) 1996-03-06 1996-03-06 Adjustment of dot size for laser imagers

Publications (2)

Publication Number Publication Date
DE69628539D1 true DE69628539D1 (de) 2003-07-10
DE69628539T2 DE69628539T2 (de) 2004-04-29

Family

ID=24450792

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69628539T Expired - Fee Related DE69628539T2 (de) 1996-03-06 1996-10-17 Einstellung der Punktgrösse für Laserdrucker

Country Status (4)

Country Link
US (1) US5793406A (de)
EP (1) EP0794656B1 (de)
JP (1) JPH09331448A (de)
DE (1) DE69628539T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821515B1 (de) * 1996-07-26 2003-05-14 Texas Instruments Incorporated Digitaler Auflösungsumsetzer
US6501565B1 (en) 1998-07-07 2002-12-31 Electronics For Imaging, Inc. Method and apparatus for smoothing text outlines
JP3760969B2 (ja) * 1998-08-07 2006-03-29 セイコーエプソン株式会社 画像形成装置及び方法
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
US6476844B1 (en) 2000-10-12 2002-11-05 Lexmark International, Inc. Method and apparatus for electrophotographic laser video modulation and decode for spot fidelity
US6553190B1 (en) * 2001-10-16 2003-04-22 Hewlett-Packard Development Co., L.P. Correction of pulse width accumulator based on the temperature and relative humidity
US6641244B2 (en) * 2001-11-28 2003-11-04 Hewlett-Packard Development Company, Lp. Method and apparatus for modifying a printing process in response to environmental conditions received via a network
JP4605692B2 (ja) * 2004-03-19 2011-01-05 株式会社リコー 半導体レーザ変調駆動装置及び画像形成装置
US7480066B2 (en) * 2004-07-29 2009-01-20 Marvell International Technology Ltd. Modulated video waveform generator
US7408567B2 (en) * 2005-03-29 2008-08-05 Kabushiki Kaisha Toshiba Light beam scanning apparatus and image forming apparatus
US11113999B2 (en) * 2018-09-03 2021-09-07 Chongqing Hkc Optoelectronics Technology Co., Ltd. Data processing method, display device, and computer-readable storage medium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152373A (en) * 1980-04-24 1981-11-25 Fuji Photo Film Co Ltd Laser recording device
US4847641A (en) 1988-08-16 1989-07-11 Hewlett-Packard Company Piece-wise print image enhancement for dot matrix printers
US5313308A (en) * 1989-08-31 1994-05-17 Canon Kabushiki Kaisha Image forming apparatus which changes its tone reproducing property in accordance with ambient conditions
JPH04316276A (ja) * 1991-04-16 1992-11-06 Ricoh Co Ltd 画像形成装置
US5671003A (en) * 1991-11-04 1997-09-23 Eastman Kodak Company Hybrid digital image printer with halftone gray scale capability
US5359431A (en) * 1992-06-05 1994-10-25 Eastman Kodak Company Classification to change exposure within a cell of different pixels
JP3274200B2 (ja) * 1992-12-28 2002-04-15 キヤノン株式会社 画像形成方法及び装置
EP0612181A1 (de) * 1993-02-19 1994-08-24 Linotype-Hell Ag Verfahren und Einrichtung zur Umwandlung von Halbtonwerten in Binärwerte
US5666470A (en) * 1995-06-29 1997-09-09 Xerox Corporation Method and apparatus for appearance tuning of bitmap images

Also Published As

Publication number Publication date
JPH09331448A (ja) 1997-12-22
EP0794656A2 (de) 1997-09-10
US5793406A (en) 1998-08-11
EP0794656B1 (de) 2003-06-04
DE69628539T2 (de) 2004-04-29
EP0794656A3 (de) 1999-08-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8339 Ceased/non-payment of the annual fee