JP5247058B2 - 画像形成装置 - Google Patents

画像形成装置 Download PDF

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Publication number
JP5247058B2
JP5247058B2 JP2007102060A JP2007102060A JP5247058B2 JP 5247058 B2 JP5247058 B2 JP 5247058B2 JP 2007102060 A JP2007102060 A JP 2007102060A JP 2007102060 A JP2007102060 A JP 2007102060A JP 5247058 B2 JP5247058 B2 JP 5247058B2
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JP
Japan
Prior art keywords
contrast potential
image
image forming
environmental
density
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
JP2007102060A
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English (en)
Japanese (ja)
Other versions
JP2008257139A (ja
JP2008257139A5 (enExample
Inventor
暢彦 財間
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 JP2007102060A priority Critical patent/JP5247058B2/ja
Priority to US12/099,134 priority patent/US8073349B2/en
Publication of JP2008257139A publication Critical patent/JP2008257139A/ja
Publication of JP2008257139A5 publication Critical patent/JP2008257139A5/ja
Application granted granted Critical
Publication of JP5247058B2 publication Critical patent/JP5247058B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/065—Arrangements for controlling the potential of the developing electrode
    • 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
    • G03G15/04045—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
    • G03G15/04072—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers by laser
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5062—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the characteristics of an image on the copy material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00025—Machine control, e.g. regulating different parts of the machine
    • G03G2215/00029—Image density detection
    • G03G2215/00063—Colour
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0402—Exposure devices
    • G03G2215/0404—Laser

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2007102060A 2007-04-09 2007-04-09 画像形成装置 Expired - Fee Related JP5247058B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007102060A JP5247058B2 (ja) 2007-04-09 2007-04-09 画像形成装置
US12/099,134 US8073349B2 (en) 2007-04-09 2008-04-07 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007102060A JP5247058B2 (ja) 2007-04-09 2007-04-09 画像形成装置

Publications (3)

Publication Number Publication Date
JP2008257139A JP2008257139A (ja) 2008-10-23
JP2008257139A5 JP2008257139A5 (enExample) 2010-05-20
JP5247058B2 true JP5247058B2 (ja) 2013-07-24

Family

ID=39827015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007102060A Expired - Fee Related JP5247058B2 (ja) 2007-04-09 2007-04-09 画像形成装置

Country Status (2)

Country Link
US (1) US8073349B2 (enExample)
JP (1) JP5247058B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP6185821B2 (ja) * 2013-10-25 2017-08-23 キヤノン株式会社 画像形成装置
JP5981962B2 (ja) * 2014-07-04 2016-08-31 キヤノン株式会社 画像形成装置及びその制御方法
JP2019113716A (ja) * 2017-12-25 2019-07-11 富士ゼロックス株式会社 画像形成システム

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* Cited by examiner, † Cited by third party
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JPS63185279A (ja) 1987-01-28 1988-07-30 Canon Inc カラ−複写装置
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DE69631494T2 (de) * 1995-04-03 2004-12-02 Sharp K.K. Bilderzeugungsgerät
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US6029021A (en) * 1996-12-20 2000-02-22 Fuji Xerox Co., Ltd. Image forming apparatus having an adaptive mode density control system
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US6288733B1 (en) * 1999-03-31 2001-09-11 Konica Corporation Image forming apparatus employing dots of a predetermined diameter
JP3532472B2 (ja) * 1999-04-27 2004-05-31 シャープ株式会社 画像形成装置
JP2000316088A (ja) * 1999-04-28 2000-11-14 Sharp Corp 画像形成装置
ATE284050T1 (de) * 1999-07-28 2004-12-15 Seiko Epson Corp Bilderzeugungsgerät und verfahren
JP2001134025A (ja) * 1999-11-02 2001-05-18 Ricoh Co Ltd 画像形成装置及び画像形成方法
US6987576B2 (en) * 2000-03-06 2006-01-17 Canon Kabushiki Kaisha Image forming apparatus with gamma conversion means
JP3851057B2 (ja) * 2000-04-21 2006-11-29 シャープ株式会社 画像形成装置
US6549223B2 (en) * 2000-12-12 2003-04-15 Canon Kabushiki Kaisha Electrophotographic apparatus, process cartridge, and electrophotographic photosensitive member
JP2002278178A (ja) * 2001-03-21 2002-09-27 Ricoh Co Ltd 画像形成装置
JP4289851B2 (ja) * 2001-11-14 2009-07-01 キヤノン株式会社 画像形成装置
US6529694B1 (en) * 2001-12-17 2003-03-04 Toshiba Tec Kabushiki Kaisha Image forming apparatus with density control
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JP3970081B2 (ja) * 2002-04-16 2007-09-05 キヤノン株式会社 現像剤の補給量決定方法、及び画像形成装置
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JP3947494B2 (ja) * 2003-05-28 2007-07-18 株式会社沖データ 画像形成装置
US7269362B2 (en) * 2003-05-29 2007-09-11 Seiko Epson Corporation Image forming apparatus, control method and toner consumption calculating apparatus and method
US7680425B2 (en) * 2003-07-18 2010-03-16 Seiko Epson Corporation Image forming apparatus and method for controlling tone characteristics based on tone-control patch image
JP3854965B2 (ja) * 2003-12-24 2006-12-06 キヤノン株式会社 画像形成装置
JP2005345961A (ja) * 2004-06-07 2005-12-15 Canon Inc 画像形成装置
US20050286086A1 (en) * 2004-06-23 2005-12-29 Matsushita Electric Industrial Co., Ltd. Image output apparatus, output image control method, and output image control program
JP2006039036A (ja) * 2004-07-23 2006-02-09 Konica Minolta Business Technologies Inc トナー濃度推定方法及び装置、並びにその装置を備えた画像形成装置
WO2006025361A1 (ja) * 2004-09-01 2006-03-09 Seiko Epson Corporation 画像形成装置および画像形成方法
JP4355636B2 (ja) * 2004-09-13 2009-11-04 キヤノン株式会社 画像形成装置
KR100657285B1 (ko) * 2004-11-11 2006-12-14 삼성전자주식회사 멀티패스 방식 컬러 프린터의 화상 농도 측정 방법 및 장치
US20060140650A1 (en) * 2004-12-14 2006-06-29 Seiko Epson Corporation Image forming apparatus, toner counter and toner consumption calculating method
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JP2008015170A (ja) * 2006-07-05 2008-01-24 Brother Ind Ltd 画像形成装置
US7583908B2 (en) * 2006-07-25 2009-09-01 Kabushiki Kaisha Toshiba Image forming apparatus using an electrophotographic process and image forming method
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US20080175608A1 (en) * 2007-01-24 2008-07-24 Kabushiki Kaisha Toshiba Image forming apparatus and method thereof
JP5240541B2 (ja) * 2007-02-26 2013-07-17 株式会社リコー 画像形成装置
JP2010066697A (ja) * 2008-09-12 2010-03-25 Canon Inc 画像形成装置及び画像形成装置の電位制御方法
US20100266296A1 (en) * 2009-04-20 2010-10-21 Kabushiki Kaisha Toshiba Image forming apparatus and image quality maintenance method for image forming apparauts
JP2010266594A (ja) * 2009-05-13 2010-11-25 Canon Inc 画像形成装置
CN102023519A (zh) * 2009-09-16 2011-04-20 株式会社东芝 图像形成装置、图像形成方法及显影对比电位的确定方法
JP5430364B2 (ja) * 2009-11-17 2014-02-26 キヤノン株式会社 画像形成装置
JP5376332B2 (ja) * 2010-02-19 2013-12-25 株式会社リコー 画像形成装置
JP5724195B2 (ja) * 2010-03-15 2015-05-27 富士ゼロックス株式会社 現像装置及び画像形成装置

Also Published As

Publication number Publication date
US20080247769A1 (en) 2008-10-09
JP2008257139A (ja) 2008-10-23
US8073349B2 (en) 2011-12-06

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