JP4593950B2 - 画像形成装置 - Google Patents

画像形成装置 Download PDF

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Publication number
JP4593950B2
JP4593950B2 JP2004085692A JP2004085692A JP4593950B2 JP 4593950 B2 JP4593950 B2 JP 4593950B2 JP 2004085692 A JP2004085692 A JP 2004085692A JP 2004085692 A JP2004085692 A JP 2004085692A JP 4593950 B2 JP4593950 B2 JP 4593950B2
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JP
Japan
Prior art keywords
image
density
toner
developer
control
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
JP2004085692A
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English (en)
Japanese (ja)
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JP2005274789A5 (enExample
JP2005274789A (ja
Inventor
文武 廣部
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 JP2004085692A priority Critical patent/JP4593950B2/ja
Priority to US11/076,925 priority patent/US7218870B2/en
Publication of JP2005274789A publication Critical patent/JP2005274789A/ja
Publication of JP2005274789A5 publication Critical patent/JP2005274789A5/ja
Application granted granted Critical
Publication of JP4593950B2 publication Critical patent/JP4593950B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033—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 photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch
    • 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
    • G03G2215/00033—Image density detection on recording member
    • G03G2215/00037—Toner image detection
    • 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
    • G03G2215/08—Details of powder developing device not concerning the development directly
    • G03G2215/0888—Arrangements for detecting toner level or concentration in the developing device
    • G03G2215/0891—Optical detection

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
JP2004085692A 2004-03-23 2004-03-23 画像形成装置 Expired - Fee Related JP4593950B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004085692A JP4593950B2 (ja) 2004-03-23 2004-03-23 画像形成装置
US11/076,925 US7218870B2 (en) 2004-03-23 2005-03-11 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004085692A JP4593950B2 (ja) 2004-03-23 2004-03-23 画像形成装置

Publications (3)

Publication Number Publication Date
JP2005274789A JP2005274789A (ja) 2005-10-06
JP2005274789A5 JP2005274789A5 (enExample) 2007-05-10
JP4593950B2 true JP4593950B2 (ja) 2010-12-08

Family

ID=34989966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004085692A Expired - Fee Related JP4593950B2 (ja) 2004-03-23 2004-03-23 画像形成装置

Country Status (2)

Country Link
US (1) US7218870B2 (enExample)
JP (1) JP4593950B2 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4110003B2 (ja) * 2003-01-31 2008-07-02 キヤノン株式会社 画像形成装置
JP4593950B2 (ja) 2004-03-23 2010-12-08 キヤノン株式会社 画像形成装置
JP4795071B2 (ja) * 2006-03-30 2011-10-19 キヤノン株式会社 現像装置
US7865091B2 (en) * 2007-01-10 2011-01-04 Kabushiki Kaisha Toshiba Image forming apparatus having a transfer surface with elasticity and image forming method
JP5082573B2 (ja) * 2007-05-02 2012-11-28 富士ゼロックス株式会社 画像形成装置
JP4605190B2 (ja) * 2007-07-17 2011-01-05 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置
JP4793666B2 (ja) * 2009-03-27 2011-10-12 ブラザー工業株式会社 画像形成装置
US7929872B2 (en) * 2009-07-30 2011-04-19 Xerox Corporation Xerographic process controls scheduling approach to mitigate costs of measurement
US8812134B2 (en) * 2009-11-12 2014-08-19 Cardiac Pacemakers Inc. Helix fixation mechanism
JP5743506B2 (ja) * 2010-11-30 2015-07-01 キヤノン株式会社 画像形成装置
JP2013156291A (ja) 2012-01-26 2013-08-15 Canon Inc 画像形成装置
JP5865101B2 (ja) * 2012-02-03 2016-02-17 キヤノン株式会社 画像形成装置
JP5885541B2 (ja) 2012-03-01 2016-03-15 キヤノン株式会社 画像形成装置
JP6000624B2 (ja) * 2012-04-27 2016-10-05 キヤノン株式会社 画像形成装置
JP2014170197A (ja) 2013-03-05 2014-09-18 Canon Inc 画像形成装置
JP6391220B2 (ja) * 2013-08-19 2018-09-19 キヤノン株式会社 画像形成装置
JP6300082B2 (ja) * 2013-12-25 2018-03-28 株式会社リコー 画像形成装置
JP6300886B2 (ja) * 2016-11-18 2018-03-28 キヤノン株式会社 画像形成装置
JP7708647B2 (ja) 2021-11-11 2025-07-15 東芝テック株式会社 画像形成装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2808108B2 (ja) 1987-01-19 1998-10-08 キヤノン株式会社 画像形成装置
JPH0297973A (ja) * 1988-10-04 1990-04-10 Minolta Camera Co Ltd 画像濃度制御方法
JPH04329562A (ja) * 1991-04-30 1992-11-18 Ricoh Co Ltd 画像形成装置
JP3187536B2 (ja) * 1992-06-16 2001-07-11 キヤノン株式会社 画像形成装置
JP3098138B2 (ja) * 1993-07-06 2000-10-16 キヤノン株式会社 画像形成装置
US5819132A (en) * 1995-06-29 1998-10-06 Canon Kabushiki Kaisha Image forming apparatus capable of toner replenishment based on density of reference toner image and toner replenishment based on ratio of toner to carrier
JP3554653B2 (ja) 1996-07-19 2004-08-18 株式会社リコー 画像形成装置及び初期現像剤扱い方法
JP3576709B2 (ja) * 1996-07-22 2004-10-13 キヤノン株式会社 画像形成装置及び方法
JP2000227682A (ja) * 1999-02-05 2000-08-15 Canon Inc 画像形成装置
US6442355B2 (en) * 1999-02-24 2002-08-27 Canon Kabushiki Kaisha Developer density controlling apparatus including target density information detection and toner image density detection
JP2001194837A (ja) 2000-01-07 2001-07-19 Canon Inc 画像形成装置
JP2002006684A (ja) 2000-06-27 2002-01-11 Canon Inc 画像形成装置
US6665502B2 (en) * 2000-06-06 2003-12-16 Canon Kabushiki Kaisha Image forming apparatus with electrostatic potential-based developer correction
JP2002372813A (ja) * 2001-06-15 2002-12-26 Canon Inc 画像形成装置
US6702060B2 (en) 2001-06-27 2004-03-09 Nsk Ltd. Electric power steering apparatus
JPWO2003004947A1 (ja) 2001-07-02 2004-10-28 三洋電機株式会社 ヒートポンプ装置
US6947681B2 (en) * 2002-02-04 2005-09-20 Canon Kabushikik Kaisha Image forming apparatus with two-speed developing operation and toner control feature
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
US7054583B2 (en) * 2002-10-07 2006-05-30 Canon Kabushiki Kaisha Developing device including two developer carrying members
US7779247B2 (en) * 2003-01-09 2010-08-17 Jericho Systems Corporation Method and system for dynamically implementing an enterprise resource policy
JP4593950B2 (ja) 2004-03-23 2010-12-08 キヤノン株式会社 画像形成装置

Also Published As

Publication number Publication date
US20050213999A1 (en) 2005-09-29
US7218870B2 (en) 2007-05-15
JP2005274789A (ja) 2005-10-06

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