DE3369750D1 - System for monitoring and controlling electrophotographic toner operation - Google Patents

System for monitoring and controlling electrophotographic toner operation

Info

Publication number
DE3369750D1
DE3369750D1 DE8383110304T DE3369750T DE3369750D1 DE 3369750 D1 DE3369750 D1 DE 3369750D1 DE 8383110304 T DE8383110304 T DE 8383110304T DE 3369750 T DE3369750 T DE 3369750T DE 3369750 D1 DE3369750 D1 DE 3369750D1
Authority
DE
Germany
Prior art keywords
monitoring
electrophotographic toner
toner operation
controlling
controlling electrophotographic
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
Application number
DE8383110304T
Other languages
English (en)
Inventor
John Harold Dodge
Thomas Franklin Eichhorn
Peter Alan Stevenson
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3369750D1 publication Critical patent/DE3369750D1/de
Expired 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
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
DE8383110304T 1982-12-27 1983-10-17 System for monitoring and controlling electrophotographic toner operation Expired DE3369750D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/453,847 US4502778A (en) 1982-12-27 1982-12-27 System for monitoring and controlling electrophotographic toner operation

Publications (1)

Publication Number Publication Date
DE3369750D1 true DE3369750D1 (en) 1987-03-12

Family

ID=23802317

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383110304T Expired DE3369750D1 (en) 1982-12-27 1983-10-17 System for monitoring and controlling electrophotographic toner operation

Country Status (4)

Country Link
US (1) US4502778A (de)
EP (1) EP0112450B1 (de)
JP (1) JPS59121354A (de)
DE (1) DE3369750D1 (de)

Families Citing this family (40)

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Publication number Priority date Publication date Assignee Title
US4660152A (en) * 1984-06-18 1987-04-21 Xerox Corporation System and method for monitoring and maintaining concentrate material in a fluid carrier
US4607944A (en) * 1985-06-07 1986-08-26 Eastman Kodak Company Apparatus for controlling toner replenishment in electrographic copier
US4712907A (en) * 1985-11-01 1987-12-15 Xerox Corporation Sequencing means for photocopying processes
JPH0789250B2 (ja) * 1986-02-04 1995-09-27 ミノルタ株式会社 画像記録装置
JPS62269154A (ja) * 1986-05-16 1987-11-21 Sharp Corp 複写紙の搬送装置
US4833506A (en) * 1986-05-30 1989-05-23 Konishiroku Photo Industry Co., Ltd. Method and apparatus for controlling toner density of copying device
US4693593A (en) * 1986-06-24 1987-09-15 Eastman Kodak Company Electrographic process control
JPS6320158U (de) * 1986-07-23 1988-02-09
US4806980A (en) * 1986-11-06 1989-02-21 Eastman Kodak Company Dynamic feedforward process control for electrographic machines
GB2203358A (en) * 1987-01-12 1988-10-19 Ricoh Kk A toner density control device
US4780744A (en) * 1987-02-18 1988-10-25 Eastman Kodak Company System for quality monitoring and control in an electrophotographic process
US4786924A (en) * 1987-03-20 1988-11-22 Xerox Corporation Hybrid control system for a copier
US4724461A (en) * 1987-04-06 1988-02-09 Eastman Kodak Company Dynamic process control for electrostatographic machines
JPS63254476A (ja) * 1987-04-11 1988-10-21 Minolta Camera Co Ltd 電子写真複写機
JPH01178990A (ja) * 1987-12-29 1989-07-17 Toshiba Corp オートトナーセンサ
JPH01224787A (ja) * 1988-03-04 1989-09-07 Toshiba Corp 画像形成装置
DE3807121A1 (de) * 1988-03-04 1989-09-14 Siemens Ag Elektrofotografische druckeinrichtung mit geregeltem elektrofotografischen prozess
JPH0235481A (ja) * 1988-07-26 1990-02-06 Ricoh Co Ltd 複写機の制御装置
US5097293A (en) * 1988-08-03 1992-03-17 Fujitsu Limited Method and device for controlling toner density of an electrostatic printing apparatus employing toner
JPH02149864A (ja) * 1988-12-01 1990-06-08 Ricoh Co Ltd 画像形成装置
JPH0278963U (de) * 1988-12-07 1990-06-18
US4951088A (en) * 1988-12-13 1990-08-21 International Business Machines Corporation Toner mass developed control ratio modification system
US4924263A (en) * 1989-04-10 1990-05-08 Xerox Corporation Quality control for magnetic images
US5293198A (en) * 1990-08-10 1994-03-08 Ricoh Company, Ltd. Image forming apparatus for controlling the dynamic range of an image
US5119132A (en) * 1990-10-24 1992-06-02 Xerox Corporation Densitometer and circuitry with improved measuring capabilities of marking particle density on a photoreceptor
US5162874A (en) * 1990-12-24 1992-11-10 Xerox Corporation Electrophotographic machine having a method and apparatus for measuring toner density by using diffuse electromagnetic energy
US5053822A (en) * 1990-12-24 1991-10-01 Xerox Corporation Densitometer for measuring marking particle density on a photoreceptor having a compensation ratio which adjusts for changing environmental conditions and variability between machines
US5150155A (en) * 1991-04-01 1992-09-22 Eastman Kodak Company Normalizing aim values and density patch readings for automatic set-up in electrostatographic machines
US5258810A (en) * 1991-12-13 1993-11-02 Minnesota Mining And Manufacturing Company Method for calibrating an electrophotographic proofing system
US5262825A (en) * 1991-12-13 1993-11-16 Minnesota Mining And Manufacturing Company Density process control for an electrophotographic proofing system
JP3161862B2 (ja) * 1993-04-08 2001-04-25 シャープ株式会社 自動画質補償制御方法及び補償制御回路
US5410388A (en) * 1993-05-17 1995-04-25 Xerox Corporation Automatic compensation for toner concentration drift due to developer aging
JP3337801B2 (ja) * 1993-12-30 2002-10-28 キヤノン株式会社 画像形成装置および画像形成装置の濃度制御方法
US5559579A (en) * 1994-09-29 1996-09-24 Xerox Corporation Closed-loop developability control in a xerographic copier or printer
US5822662A (en) * 1997-04-09 1998-10-13 Xerox Corporation Background detection and compensation
US5887221A (en) * 1997-10-20 1999-03-23 Xerox Corporation Signature sensing for optimum toner control with donor roll
US6554269B1 (en) * 2000-10-14 2003-04-29 Heidelberger Druckmashinen Ag Airknife and vacuum control changes to improve sheet acquisition for a vacuum corrugated feed supply
EP1477866A4 (de) * 2002-02-20 2009-12-09 Seiko Epson Corp Bilderzeugungsvorrichtung und bilderzeugungsverfahren
US7061616B2 (en) * 2002-03-28 2006-06-13 Samsung Electronics Co., Ltd. Optical transceiver and method for image density measurement
JP5381840B2 (ja) * 2010-03-18 2014-01-08 コニカミノルタ株式会社 画像形成装置の管理装置及び管理システム並びにプログラム

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647293A (en) * 1970-12-01 1972-03-07 Ibm Copying system featuring combined developing-cleaning station alternately activated
US4141645A (en) * 1977-07-29 1979-02-27 Eastman Kodak Company Toner concentration monitor
US4178095A (en) * 1978-04-10 1979-12-11 International Business Machines Corporation Abnormally low reflectance photoconductor sensing system
US4183657A (en) * 1978-04-10 1980-01-15 International Business Machines Corporation Dynamic reference for an image quality control system
US4179213A (en) * 1978-04-10 1979-12-18 International Business Machines Corporation Vector pinning in an electrophotographic machine
JPS54143144A (en) * 1978-04-14 1979-11-08 Konishiroku Photo Ind Co Ltd Image density detecting method and apparatus for zerographic copier
US4279498A (en) * 1978-12-28 1981-07-21 Ricoh Company, Ltd. Electrostatographic copying apparatus with automatic toner density control
US4377332A (en) * 1979-04-20 1983-03-22 Canon Kabushiki Kaisha Developing device
US4326646A (en) * 1979-05-11 1982-04-27 Xerox Corporation Automatic development dispenser control
JPS5614260A (en) * 1979-07-16 1981-02-12 Canon Inc Developing device
US4316667A (en) * 1980-02-19 1982-02-23 International Business Machines Corporation Copier and recirculating document feeder
US4341461A (en) * 1980-04-07 1982-07-27 Xerox Corporation Development control of a reproduction machine
US4348099A (en) * 1980-04-07 1982-09-07 Xerox Corporation Closed loop control of reproduction machine
JPS56161557A (en) * 1980-05-19 1981-12-11 Fuji Xerox Co Ltd Method for controlling electrophotographic copying machine
US4374616A (en) * 1980-06-30 1983-02-22 Mita Industrial Co., Ltd. Image-forming apparatus having a photosensitive member transfer mechanism
US4319829A (en) * 1980-07-30 1982-03-16 International Business Machines Corporation Noncircular photoconductor belt mounting apparatus and method
US4372669A (en) * 1981-06-29 1983-02-08 Xerox Corporation Electrophotographic printing machine
US4377338A (en) * 1981-08-07 1983-03-22 International Business Machines Corporation Method and apparatus for copier quality monitoring and control
JPS5885448A (ja) * 1981-11-17 1983-05-21 Ricoh Co Ltd 記録濃度関連値検出方法

Also Published As

Publication number Publication date
US4502778A (en) 1985-03-05
JPS59121354A (ja) 1984-07-13
EP0112450B1 (de) 1987-02-04
EP0112450A1 (de) 1984-07-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee