DE3886797D1 - Kopier-Steuerungssystem. - Google Patents

Kopier-Steuerungssystem.

Info

Publication number
DE3886797D1
DE3886797D1 DE88302400T DE3886797T DE3886797D1 DE 3886797 D1 DE3886797 D1 DE 3886797D1 DE 88302400 T DE88302400 T DE 88302400T DE 3886797 T DE3886797 T DE 3886797T DE 3886797 D1 DE3886797 D1 DE 3886797D1
Authority
DE
Germany
Prior art keywords
control system
copy control
copy
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
DE88302400T
Other languages
English (en)
Other versions
DE3886797T2 (de
Inventor
Jeffrey J Folkins
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE3886797D1 publication Critical patent/DE3886797D1/de
Publication of DE3886797T2 publication Critical patent/DE3886797T2/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
    • G03G15/50—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
    • 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
    • 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
    • G03G15/5037—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 the characteristics being an electrical parameter, e.g. voltage
    • 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)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)
DE3886797T 1987-03-20 1988-03-18 Kopier-Steuerungssystem. Expired - Fee Related DE3886797T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/028,518 US4786924A (en) 1987-03-20 1987-03-20 Hybrid control system for a copier

Publications (2)

Publication Number Publication Date
DE3886797D1 true DE3886797D1 (de) 1994-02-17
DE3886797T2 DE3886797T2 (de) 1994-06-01

Family

ID=21843899

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3886797T Expired - Fee Related DE3886797T2 (de) 1987-03-20 1988-03-18 Kopier-Steuerungssystem.

Country Status (4)

Country Link
US (1) US4786924A (de)
EP (1) EP0284307B1 (de)
JP (1) JPH0758406B2 (de)
DE (1) DE3886797T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2884526B2 (ja) * 1988-03-01 1999-04-19 株式会社リコー 画像形成装置の画像制御方法
US4999673A (en) * 1989-05-10 1991-03-12 Xerox Corporation Process control by creating and sensing half-tone test patches
US5214471A (en) * 1989-05-22 1993-05-25 Xerox Corporation Background monitoring device
US5047802A (en) * 1989-06-15 1991-09-10 Eastman Kodak Company Process control of electrostatographic machine by adjusting charge-to-mass ratio of toner in response to toned density of developed image
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
US4974024A (en) * 1989-07-03 1990-11-27 Xerox Corporation Predictive toner dispenser controller
JP3027161B2 (ja) * 1989-07-14 2000-03-27 株式会社リコー 画像形成装置における画像濃度検知装置
US5003327A (en) * 1989-11-15 1991-03-26 Delphax Systems Printer autocontrast control
DE4113777C2 (de) * 1990-04-27 1995-09-14 Ricoh Kk Bilderzeugungseinrichtung
US5019859A (en) * 1990-05-14 1991-05-28 Xerox Corporation Process control for highlight color with developer switching
JP3066917B2 (ja) * 1991-02-22 2000-07-17 キヤノン株式会社 画像形成装置
US5416564A (en) * 1994-02-04 1995-05-16 Xerox Corporatin Xerographic process control using developer to photoreceptor current sensing for grid voltage adjust
US5416563A (en) * 1994-02-04 1995-05-16 Xerox Corporation Xerographic process control by adjusting photoreceptor voltages by photoreceptor segments
US5402214A (en) * 1994-02-23 1995-03-28 Xerox Corporation Toner concentration sensing system for an electrophotographic printer
JP3282404B2 (ja) * 1994-09-26 2002-05-13 ミノルタ株式会社 画像形成装置
US5600409A (en) * 1996-02-20 1997-02-04 Xerox Corporation Optimal toner concentration sensing system for an electrophotographic printer
JPH1165298A (ja) * 1997-08-18 1999-03-05 Nec Niigata Ltd 液体現像剤の濃度検出、管理方法
JP2004240226A (ja) * 2003-02-07 2004-08-26 Hitachi Printing Solutions Ltd 画像形成装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619637B2 (de) * 1973-06-20 1981-05-08
US4026643A (en) * 1975-08-22 1977-05-31 Xerox Corporation Apparatus and method for measurement of the ratio of toner particle electrostatic charge to toner particle mass in electrostatographic devices
DE2655158C2 (de) * 1976-12-06 1986-04-03 Hoechst Ag, 6230 Frankfurt Verfahren und Vorrichtung zum Entwickeln eines elektrostatischen latenten Ladungsbildes
US4141645A (en) * 1977-07-29 1979-02-27 Eastman Kodak Company Toner concentration monitor
US4155638A (en) * 1978-03-02 1979-05-22 Eastman Kodak Company Toner concentration monitor
US4279498A (en) * 1978-12-28 1981-07-21 Ricoh Company, Ltd. Electrostatographic copying apparatus with automatic toner density control
JPS55111970A (en) * 1979-02-21 1980-08-29 Ricoh Co Ltd Developing method
US4326646A (en) * 1979-05-11 1982-04-27 Xerox Corporation Automatic development dispenser control
US4455090A (en) * 1979-07-26 1984-06-19 The Wiggins Teape Group Limited Apparatus for measuring surface reflectance characteristics
US4318610A (en) * 1980-04-21 1982-03-09 Xerox Corporation Control system for an electrophotographic printing machine
JPS5720766A (en) * 1980-07-14 1982-02-03 Ricoh Co Ltd Method for detection of toner density
US4468112A (en) * 1981-02-18 1984-08-28 Canon Kabushiki Kaisha Developer concentration controlling device
JPS5814168A (ja) * 1981-07-17 1983-01-26 Canon Inc トナ−濃度制御装置
JPS5823043A (ja) * 1981-08-03 1983-02-10 Fuji Xerox Co Ltd 複写機の濃度自動制御方法
US4466731A (en) * 1982-06-16 1984-08-21 International Business Machines Corporation Electrophotographic machine with high density toner concentration control
US4502778A (en) * 1982-12-27 1985-03-05 International Business Machines Corporation System for monitoring and controlling electrophotographic toner operation
DE3469387D1 (en) * 1983-06-03 1988-03-24 Agfa Gevaert Nv Toner dispensing control
US4492179A (en) * 1983-06-16 1985-01-08 Xerox Corporation Control system for regulating the dispensing of marking particles in an electrophotographic printing machine
US4553033A (en) * 1983-08-24 1985-11-12 Xerox Corporation Infrared reflectance densitometer
US4563086A (en) * 1984-10-22 1986-01-07 Xerox Corporation Copy quality monitoring for magnetic images
JPS61153673A (ja) * 1984-12-27 1986-07-12 Fuji Xerox Co Ltd 複写機の自動画像濃度制御方法
JPS61167965A (ja) * 1985-01-21 1986-07-29 Fuji Xerox Co Ltd 複写機の自動画像濃度制御方法
JP2569459B2 (ja) * 1985-04-09 1997-01-08 富士ゼロックス株式会社 複写機の自動画像濃度制御装置
US4643561A (en) * 1985-05-02 1987-02-17 Xerox Corporation Control system for an electrophotographic printing machine

Also Published As

Publication number Publication date
EP0284307A3 (en) 1989-10-18
DE3886797T2 (de) 1994-06-01
JPS63244083A (ja) 1988-10-11
EP0284307A2 (de) 1988-09-28
US4786924A (en) 1988-11-22
JPH0758406B2 (ja) 1995-06-21
EP0284307B1 (de) 1994-01-05

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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