DE69517459D1 - Bilderzeugungsgerät und -verfahren - Google Patents

Bilderzeugungsgerät und -verfahren

Info

Publication number: DE69517459D1
Authority: DE; Germany
Prior art keywords: imaging device; imaging
Prior art date: 1994-03-25
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

DE69517459T

Other languages

English (en)

Other versions

DE69517459T2 (de

Inventor

Nobuatsu Sasanuma

Yuichi Ikeda

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.)

1994-03-25

Filing date

1995-03-24

Publication date

2000-07-20

1995-03-24 Application filed by Canon Inc filed Critical Canon Inc

2000-07-20 Application granted granted Critical

2000-07-20 Publication of DE69517459D1 publication Critical patent/DE69517459D1/de

2001-02-08 Publication of DE69517459T2 publication Critical patent/DE69517459T2/de

2015-03-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H04N1/4078—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture using gradational references, e.g. grey-scale test pattern analysis

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Control Or Security For Electrophotography (AREA)
Color Electrophotography (AREA)
Facsimile Image Signal Circuits (AREA)
Facsimile Scanning Arrangements (AREA)
Developing For Electrophotography (AREA)

DE69517459T 1994-03-25 1995-03-24 Bilderzeugungsgerät und -verfahren Expired - Lifetime DE69517459T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP05605494A JP3471886B2 (ja)	1994-03-25	1994-03-25	画像形成方法及び装置

Publications (2)

Publication Number	Publication Date
DE69517459D1 true DE69517459D1 (de)	2000-07-20
DE69517459T2 DE69517459T2 (de)	2001-02-08

Family

ID=13016378

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69517459T Expired - Lifetime DE69517459T2 (de)	1994-03-25	1995-03-24	Bilderzeugungsgerät und -verfahren

Country Status (4)

Country	Link
US (1)	US6034788A (de)
EP (1)	EP0674427B1 (de)
JP (1)	JP3471886B2 (de)
DE (1)	DE69517459T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102346401A (zh) *	2010-07-21	2012-02-08	佳能株式会社	图像形成设备

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US6243542B1 (en) *	1998-12-14	2001-06-05	Canon Kabushiki Kaisha	System for controlling the density of toner images in an image forming apparatus
JP3596857B2 (ja) *	1999-07-05	2004-12-02	キヤノン株式会社	印刷装置および画像処理方法
JP3566145B2 (ja) *	1999-09-03	2004-09-15	シャープ株式会社	画像形成装置
US7006246B1 (en)	1999-09-17	2006-02-28	Canon Kabushiki Kaisha	Image processing method, apparatus, recording medium and chart therefor
US6909814B1 (en) *	1999-09-17	2005-06-21	Canon Kabushiki Kaisha	Image processing method of generating conversion data for a scanner and calibration method employing the scanner
US6603574B1 (en) *	1999-11-23	2003-08-05	Xerox Corporation	Image color registration sensor calibration
JP2001213030A (ja) *	2000-02-01	2001-08-07	Canon Inc	テストプリント方法、情報処理装置および印刷システム
JP4107634B2 (ja) *	2000-08-09	2008-06-25	株式会社リコー	画像形成装置
US6486903B1 (en) *	2000-09-27	2002-11-26	Sawgrass Systems, Inc.	Transfer printing process
US6999213B2 (en) *	2000-09-29	2006-02-14	Canon Kabushiki Kaisha	Image processing system, image processing apparatus, image processing method, and storage medium thereof
US7253921B2 (en) *	2000-10-11	2007-08-07	True Color Technology Gmbh	Process and target for calibration of digital input devices
US7050182B2 (en) *	2001-03-29	2006-05-23	Hewlett-Packard Development Company, L.P.	Device having embedded supply consumption rate test capability
JP2003037718A (ja) *	2001-07-23	2003-02-07	Ricoh Co Ltd	画像読み取り装置及び画像形成装置
JP3542582B2 (ja) *	2002-01-07	2004-07-14	キヤノン株式会社	画像処理装置およびその制御方法
US7274490B2 (en) *	2002-02-19	2007-09-25	Canon Kabushiki Kaisha	Image forming apparatus with control of maximum output of colorant
JP4323871B2 (ja) *	2003-06-11	2009-09-02	キヤノン株式会社	画像形成装置
EP1594302A1 (de) *	2004-05-06	2005-11-09	Agfa-Gevaert	Digitaler Kontrollstreifen für flexografisches Drucken
US7551298B2 (en) *	2004-06-04	2009-06-23	Primax Electronics Ltd.	Print control device with embedded engine simulation module and test method thereof
JP2007003707A (ja) *	2005-06-22	2007-01-11	Brother Ind Ltd	画像形成装置及びプログラム
US8531745B2 (en) *	2006-11-27	2013-09-10	Canon Kabushiki Kaisha	Image formation density correction in image forming apparatus
US20080140234A1 (en) *	2006-12-06	2008-06-12	Shafter Richard M	Method and system for remotely directing a fishing tournament
JP4922091B2 (ja)	2007-07-23	2012-04-25	ルネサスエレクトロニクス株式会社	映像信号処理装置、映像信号処理方法及び表示装置
JP2009290420A (ja) *	2008-05-28	2009-12-10	Konica Minolta Business Technologies Inc	画像形成装置及び安定化制御方法
JP5241621B2 (ja)	2009-06-10	2013-07-17	キヤノン株式会社	画像形成装置、及び画像形成装置の制御方法
JP5388772B2 (ja)	2009-09-17	2014-01-15	キヤノン株式会社	画像形成装置
JP5717361B2 (ja)	2010-06-09	2015-05-13	キヤノン株式会社	画像形成装置
US8526059B2 (en) *	2010-06-10	2013-09-03	Kabushiki Kaisha Toshiba	Printing calibration processing apparatus, image forming apparatus, and printing calibration processing method
JP5143254B2 (ja)	2010-07-22	2013-02-13	キヤノン株式会社	画像形成装置
JP5676965B2 (ja)	2010-08-09	2015-02-25	キヤノン株式会社	画像形成装置
JP2012080505A (ja) *	2010-10-06	2012-04-19	Konica Minolta Business Technologies Inc	画像処理装置および印刷装置、画像処理方法
JP2012123269A (ja) *	2010-12-09	2012-06-28	Canon Inc	画像形成装置、サーバ装置および画像形成システム
JP5586652B2 (ja) *	2011-04-18	2014-09-10	株式会社東芝	画像処理装置及び自動階調補正方法
JP2014033306A (ja) *	2012-08-02	2014-02-20	Canon Inc	画像処理装置、画像処理方法ならびにプログラム
JP6226638B2 (ja)	2013-08-22	2017-11-08	キヤノン株式会社	画像形成装置およびその制御方法
US10554860B2 (en) *	2018-07-09	2020-02-04	Toshiba Tec Kabushiki Kaisha	Image forming apparatus, test image, and output density adjustment method of image forming apparatus

Family Cites Families (28)

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Publication number	Priority date	Publication date	Assignee	Title
US4113371A (en) *	1977-01-12	1978-09-12	Xerox Corporation	Color development system
JPS6027026B2 (ja) *	1977-06-17	1985-06-26	キヤノン株式会社	電子写真方法及び装置
DE3408336A1 (de) *	1983-03-08	1984-09-13	Canon K.K., Tokio/Tokyo	Bildreproduktionssystem
US4894685A (en) *	1986-10-07	1990-01-16	Konishiroku Photo Industry Co., Ltd.	Multicolor image forming method and apparatus
DE3787611T2 (de) *	1986-10-29	1994-03-24	Canon Kk	Farbbildlesegerät oder Farbbilderzeugungsgerät.
US4963898A (en) *	1988-01-19	1990-10-16	Canon Kabushiki Kaisha	Method and apparatus for forming a color image
US4914459A (en) *	1988-04-18	1990-04-03	Ricoh Company, Ltd.	Image forming apparatus
JPH088695B2 (ja) *	1988-06-20	1996-01-29	富士写真フイルム株式会社	ハードコピィ用シミュレータ
US4989985A (en) *	1988-09-19	1991-02-05	Xerox Corporation	Densitometer for measuring specular reflectivity
US5194878A (en) *	1988-11-25	1993-03-16	Ishihara Sangyo Kaisha Ltd.	Color electrophotographic method
US4950905A (en) *	1989-02-06	1990-08-21	Xerox Corporation	Colored toner optical developability sensor with improved sensing latitude
JP3039658B2 (ja) *	1989-05-10	2000-05-08	キヤノン株式会社	画像処理装置及び方法
US5298944A (en) *	1989-06-30	1994-03-29	Ricoh Company, Ltd.	Testing image density to control toner concentration and dynamic range in a digital copier
JP2926764B2 (ja) *	1989-07-17	1999-07-28	ミノルタ株式会社	画像形成装置
JPH0349372A (ja) *	1989-07-17	1991-03-04	Minolta Camera Co Ltd	画像形成装置
US5083161A (en) *	1989-08-25	1992-01-21	Xerox Corporation	Densitometer for measuring developability
US5206686A (en) *	1990-03-20	1993-04-27	Minolta Camera Kabushiki Kaisha	Apparatus for forming an image with use of electrophotographic process including gradation correction
JP3021538B2 (ja) *	1990-05-02	2000-03-15	ミノルタ株式会社	デジタル画像形成装置
US5060013A (en) *	1990-07-31	1991-10-22	Eastman Kodak Company	Hardcopy output device with test patch location sequencer
JPH04126462A (ja) *	1990-09-18	1992-04-27	Canon Inc	画像形成装置
JPH04204461A (ja) *	1990-11-29	1992-07-24	Minolta Camera Co Ltd	画像濃度制御装置
JP3143484B2 (ja) *	1991-02-22	2001-03-07	キヤノン株式会社	画像処理装置
US5414531A (en) *	1991-02-22	1995-05-09	Canon Kabushiki Kaisha	Image forming control based on a stored operation condition
US5305057A (en) *	1991-07-05	1994-04-19	Minolta Camera Kabushiki Kaisha	Image forming apparatus having correction means for modifying image density signals according to a gradation correction table
US5363318A (en) *	1992-03-23	1994-11-08	Eastman Kodak Company	Method and apparatus for adaptive color characterization and calibration
US5204538A (en) *	1992-05-18	1993-04-20	Xerox Corporation	Densitometer for an electrophotographic printer using focused and unfocused reflecting beams
US5319433A (en) *	1992-05-18	1994-06-07	Canon Kabushiki Kaisha	Electrophotographing apparatus for forming color image
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

1994
- 1994-03-25 JP JP05605494A patent/JP3471886B2/ja not_active Expired - Lifetime
1995
- 1995-03-24 EP EP95301986A patent/EP0674427B1/de not_active Expired - Lifetime
- 1995-03-24 DE DE69517459T patent/DE69517459T2/de not_active Expired - Lifetime
1997
- 1997-11-18 US US08/972,333 patent/US6034788A/en not_active Expired - Lifetime

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102346401A (zh) *	2010-07-21	2012-02-08	佳能株式会社	图像形成设备
CN102346401B (zh) *	2010-07-21	2014-09-24	佳能株式会社	图像形成设备
US8947728B2 (en)	2010-07-21	2015-02-03	Canon Kabushiki Kaisha	Image forming apparatus which performs calibration for maintaining image quality

Also Published As

Publication number	Publication date
EP0674427A3 (de)	1996-04-24
US6034788A (en)	2000-03-07
JPH07261479A (ja)	1995-10-13
EP0674427A2 (de)	1995-09-27
DE69517459T2 (de)	2001-02-08
JP3471886B2 (ja)	2003-12-02
EP0674427B1 (de)	2000-06-14

Publication	Publication Date	Title
DE69517459D1 (de)	2000-07-20	Bilderzeugungsgerät und -verfahren
DE69631928D1 (de)	2004-04-29	Bilderzeugungsgerät und -verfahren
DE69624873D1 (de)	2003-01-02	Bilderzeugungsgerät und -verfahren
DE69432097D1 (de)	2003-03-13	Abbildungsgerät und -verfahren
DE69725505D1 (de)	2003-11-20	Bildkombinationsgerät und -verfahren
DE69426658D1 (de)	2001-03-15	Abbildungsgerät und -verfahren
DE69519504D1 (de)	2001-01-04	Bildverarbeitungsverfahren und -vorrichtung
DE69532016D1 (de)	2003-12-04	Bildverarbeitungsgerät und -verfahren
DE69524357D1 (de)	2002-01-17	Bildverarbeitungsvorrichtung und -verfahren
DE69522386D1 (de)	2001-10-04	Bildverarbeitungsgerät und -verfahren
DE69519196D1 (de)	2000-11-30	Bildverarbeitungsgerät und -verfahren
DE4497968T1 (de)	1996-12-05	Abbildungsverfahren und Abbildungseinrichtung
DE69715584D1 (de)	2002-10-24	Bilderzeugungsgerät und -Verfahren
DE69514143D1 (de)	2000-02-03	Bildverarbeitungsvorrichtung und -verfahren
DE69524899D1 (de)	2002-02-14	Bildverarbeitungsverfahren und -gerät
DE69528299D1 (de)	2002-10-31	Bildverarbeitungsvorrichtung und -verfahren
DE69434018D1 (de)	2004-10-28	Bildkodierungsverfahren und -vorrichtung
DE69516734D1 (de)	2000-06-15	Bildverarbeitungsverfahren und -gerät
DE69531583D1 (de)	2003-10-02	Bildverarbeitungsverfahren und -gerät
DE69717897D1 (de)	2003-01-30	Bildverarbeitungsverfahren und -vorrichtung
DE69521550D1 (de)	2001-08-09	Bildverarbeitungsverfahren und -vorrichtung
DE69526711D1 (de)	2002-06-20	Bildkodierungsvorrichtung und -verfahren
KR960013620A (ko)	1996-05-22	성형 방법 및 성형 장치
DE69515762D1 (de)	2000-04-27	Bilderzeugungsgerät und Verfahren
DE69535201D1 (de)	2006-10-12	Positionsbestimmungsgerät und -verfahren

Legal Events

Date	Code	Title	Description
2001-07-05	8364	No opposition during term of opposition