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DE69820136D1 - Nachweis für Toneraufbrauch in einem adaptiven elektrophotographischen Drucksystem - Google Patents

Nachweis für Toneraufbrauch in einem adaptiven elektrophotographischen Drucksystem

Info

Publication number
DE69820136D1
DE69820136D1 DE69820136T DE69820136T DE69820136D1 DE 69820136 D1 DE69820136 D1 DE 69820136D1 DE 69820136 T DE69820136 T DE 69820136T DE 69820136 T DE69820136 T DE 69820136T DE 69820136 D1 DE69820136 D1 DE 69820136D1
Authority
DE
Germany
Prior art keywords
evidence
adaptive
printing system
electrophotographic printing
toner waste
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
DE69820136T
Other languages
English (en)
Other versions
DE69820136T2 (de
Inventor
George B Clifton
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 DE69820136D1 publication Critical patent/DE69820136D1/de
Publication of DE69820136T2 publication Critical patent/DE69820136T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • 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
    • G03G2215/00042—Optical detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
DE69820136T 1997-02-28 1998-01-19 Nachweis für toneraufbrauch in einem adaptiven elektrophotographischen drucksystem Expired - Fee Related DE69820136T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/810,317 US5815768A (en) 1997-02-28 1997-02-28 Detection of toner depletion in an electrophotographic printing system
US810317 1997-02-28

Publications (2)

Publication Number Publication Date
DE69820136D1 true DE69820136D1 (de) 2004-01-15
DE69820136T2 DE69820136T2 (de) 2004-11-11

Family

ID=25203576

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69820136T Expired - Fee Related DE69820136T2 (de) 1997-02-28 1998-01-19 Nachweis für toneraufbrauch in einem adaptiven elektrophotographischen drucksystem

Country Status (4)

Country Link
US (1) US5815768A (de)
EP (1) EP0863446B1 (de)
JP (1) JPH10239925A (de)
DE (1) DE69820136T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6631247B1 (en) * 1999-09-29 2003-10-07 Ricoh Co., Ltd. Method and system for remote diagnostic, control and information collection based on various communication modes for sending messages to a resource manager
US7031020B1 (en) * 1994-04-22 2006-04-18 Canon Kabushiki Kaisha Image processing method, apparatus and controller
US5899596A (en) * 1998-05-29 1999-05-04 Hewlett-Packard Company Optimization of electrophotographic edge development
US6494562B1 (en) 1998-09-03 2002-12-17 Hewlett-Packard Company Method and apparatus for identifying a sales channel
JP2002182457A (ja) * 2000-12-11 2002-06-26 Canon Inc 現像装置および画像形成装置
US6456802B1 (en) 2001-04-02 2002-09-24 Hewlett-Packard Co. Capacity determination for toner or ink cartridge
US6977755B2 (en) * 2001-09-20 2005-12-20 Hewlett-Packard Development Company, L.P. Toner advisor apparatus and method
US20030086099A1 (en) * 2001-11-02 2003-05-08 Eastman Kodak Company Calibration method for a printing apparatus using photosensitive media
US6746094B1 (en) 2002-10-30 2004-06-08 Hewlett-Packard Development Company, L.P. Imaging system and method of determining insufficient colorant
US6744996B2 (en) 2002-10-31 2004-06-01 Samsung Electronics Co., Ltd. Method of determining liquid toner depletion
US7280779B2 (en) * 2004-12-26 2007-10-09 Hewlett-Packard Development Company, L.P. Image banding compensation method
US7970304B2 (en) * 2008-12-12 2011-06-28 Eastman Kodak Company Method of improving developed flat field uniformity
JP4947130B2 (ja) * 2009-11-30 2012-06-06 ブラザー工業株式会社 印刷装置
US10241032B2 (en) 2015-01-23 2019-03-26 Hp Indigo B.V. Impeller blade for calibrating light sensor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188284A (ja) * 1984-10-08 1986-05-06 Ricoh Co Ltd 画像形成装置におけるトナ−終了検知方法
JPS63228180A (ja) * 1987-03-17 1988-09-22 Minolta Camera Co Ltd トナ−補給装置
JPS6425175A (en) * 1987-07-22 1989-01-27 Toshiba Corp Toner concentration controller
US4914459A (en) * 1988-04-18 1990-04-03 Ricoh Company, Ltd. Image forming apparatus
JPH0820806B2 (ja) * 1990-03-19 1996-03-04 富士ゼロックス株式会社 現像装置のトナー空検知装置
JPH04250479A (ja) * 1991-01-28 1992-09-07 Ricoh Co Ltd 画像濃度制御方法
JPH052305A (ja) * 1991-06-26 1993-01-08 Toshiba Corp 画像形成装置
US5532794A (en) * 1993-01-07 1996-07-02 Sharp Kabushiki Kaisha Electrophotographic image stabilization control apparatus
JPH07181765A (ja) * 1993-12-22 1995-07-21 Minolta Co Ltd 画像形成装置
JP3126611B2 (ja) * 1993-12-28 2001-01-22 キヤノン株式会社 画像形成装置
JPH0815929A (ja) * 1994-06-30 1996-01-19 Toshiba Corp 画像形成装置
JP3581424B2 (ja) * 1995-04-11 2004-10-27 キヤノン株式会社 画像形成装置及びその制御方法
JP4263774B2 (ja) * 1995-10-20 2009-05-13 富士ゼロックス株式会社 現像装置におけるトナー空検知装置

Also Published As

Publication number Publication date
EP0863446A1 (de) 1998-09-09
DE69820136T2 (de) 2004-11-11
US5815768A (en) 1998-09-29
EP0863446B1 (de) 2003-12-03
JPH10239925A (ja) 1998-09-11

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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