DE3871470D1 - Dynamische steuerungskontrolle fuer elektrostatographische maschinen. - Google Patents

Dynamische steuerungskontrolle fuer elektrostatographische maschinen.

Info

Publication number
DE3871470D1
DE3871470D1 DE8888903626T DE3871470T DE3871470D1 DE 3871470 D1 DE3871470 D1 DE 3871470D1 DE 8888903626 T DE8888903626 T DE 8888903626T DE 3871470 T DE3871470 T DE 3871470T DE 3871470 D1 DE3871470 D1 DE 3871470D1
Authority
DE
Germany
Prior art keywords
control
dynamic
electrostatographic machines
electrostatographic
machines
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
DE8888903626T
Other languages
English (en)
Inventor
J Rushing
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.)
NexPress Solutions LLC
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of DE3871470D1 publication Critical patent/DE3871470D1/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
    • G03G15/065—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
    • 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)
DE8888903626T 1987-04-06 1988-03-28 Dynamische steuerungskontrolle fuer elektrostatographische maschinen. Expired - Fee Related DE3871470D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/034,363 US4724461A (en) 1987-04-06 1987-04-06 Dynamic process control for electrostatographic machines
PCT/US1988/000953 WO1988008156A1 (en) 1987-04-06 1988-03-28 Dynamic process control for electrostatographic machines

Publications (1)

Publication Number Publication Date
DE3871470D1 true DE3871470D1 (de) 1992-07-02

Family

ID=21875955

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888903626T Expired - Fee Related DE3871470D1 (de) 1987-04-06 1988-03-28 Dynamische steuerungskontrolle fuer elektrostatographische maschinen.

Country Status (5)

Country Link
US (1) US4724461A (de)
EP (1) EP0308491B1 (de)
JP (1) JPH01502783A (de)
DE (1) DE3871470D1 (de)
WO (1) WO1988008156A1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63198037A (ja) * 1987-02-13 1988-08-16 Minolta Camera Co Ltd ネガ像・ポジ像判別装置
DE3807121A1 (de) * 1988-03-04 1989-09-14 Siemens Ag Elektrofotografische druckeinrichtung mit geregeltem elektrofotografischen prozess
US5060022A (en) * 1989-07-18 1991-10-22 Mita Industrial Co., Ltd. Image processing equipment for setting image density conditions according to temperature
US5045952A (en) * 1989-08-21 1991-09-03 Xerox Corporation Method for edge enhanced error diffusion
JP3026630B2 (ja) * 1991-04-19 2000-03-27 株式会社リコー 電子写真プロセス制御装置
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
US5325211A (en) * 1993-01-04 1994-06-28 Xerox Corporation Error diffusion with output and input based feedback
US5621546A (en) * 1993-11-02 1997-04-15 Xerox Corporation Method and apparatus for vector error diffusion with output color control
US5416564A (en) * 1994-02-04 1995-05-16 Xerox Corporatin Xerographic process control using developer to photoreceptor current sensing for grid voltage adjust
US5383005A (en) * 1994-02-04 1995-01-17 Xerox Corporation Xerographic process control using periodic electrostatic set up to automatically adjust charging potential
US5416563A (en) * 1994-02-04 1995-05-16 Xerox Corporation Xerographic process control by adjusting photoreceptor voltages by photoreceptor segments
US5493416A (en) * 1994-10-31 1996-02-20 Xerox Corporation Method combining error diffusion and traditional halftoning with arbitrary screen orientation
JPH08204971A (ja) * 1994-10-31 1996-08-09 Xerox Corp 予測符号化と誤差拡散を用いた画像圧縮方法
US5742868A (en) * 1996-06-11 1998-04-21 Eastman Kodak Company Method and apparatus of adjusting of charge level on an electorstatographic recording medium
US5668638A (en) * 1996-06-27 1997-09-16 Xerox Corporation Error diffusion method with symmetric enhancement
US6857254B2 (en) * 1996-07-27 2005-02-22 Ferris Industries, Inc. Mower suspension system and method
US5822662A (en) * 1997-04-09 1998-10-13 Xerox Corporation Background detection and compensation
US6185385B1 (en) 1998-05-22 2001-02-06 Xerox Corporation Apparatus and method for online establishment of print control parameters
US5950040A (en) * 1998-05-22 1999-09-07 Xerox Corporation Feedback control system for controlling developability of a xerographic imaging device
US6236474B1 (en) 1998-05-22 2001-05-22 Xerox Corporation Device independent color controller and method
US6157469A (en) * 1998-05-22 2000-12-05 Xerox Corporation Dynamic device independent image correction method and apparatus
US6052195A (en) * 1998-05-22 2000-04-18 Xerox Corporation Automatic colorant mixing method and apparatus
US6744531B1 (en) * 1998-12-29 2004-06-01 Xerox Corporation Color adjustment apparatus and method
US6344902B1 (en) 1999-01-19 2002-02-05 Xerox Corporation Apparatus and method for using feedback and feedforward in the generation of presentation images in a distributed digital image processing system
US6809837B1 (en) 1999-11-29 2004-10-26 Xerox Corporation On-line model prediction and calibration system for a dynamically varying color reproduction device
US6873432B1 (en) 1999-11-30 2005-03-29 Xerox Corporation Method and apparatus for representing color space transformations with a piecewise homeomorphism
US6223006B1 (en) * 1999-12-01 2001-04-24 Xerox Corporation Photoreceptor charge control
US6714319B1 (en) 1999-12-03 2004-03-30 Xerox Corporation On-line piecewise homeomorphism model prediction, control and calibration system for a dynamically varying color marking device
US6625306B1 (en) 1999-12-07 2003-09-23 Xerox Corporation Color gamut mapping for accurately mapping certain critical colors and corresponding transforming of nearby colors and enhancing global smoothness
US6665502B2 (en) * 2000-06-06 2003-12-16 Canon Kabushiki Kaisha Image forming apparatus with electrostatic potential-based developer correction
KR101292556B1 (ko) * 2008-09-12 2013-08-12 삼성전자주식회사 화상형성장치 및 이의 인쇄 제어방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956487A (en) * 1955-03-23 1960-10-18 Rca Corp Electrostatic printing
BE755383A (fr) * 1969-08-29 1971-03-01 Xerox Corp Appareil pour le controle d'electrodes de developpement
US3788739A (en) * 1972-06-21 1974-01-29 Xerox Corp Image compensation method and apparatus for electrophotographic devices
US3918395A (en) * 1974-03-04 1975-11-11 Eastman Kodak Co Continuous bias control for electrographic development apparatus
JPS54100737A (en) * 1978-01-25 1979-08-08 Ricoh Co Ltd Development for zerography
US4348099A (en) * 1980-04-07 1982-09-07 Xerox Corporation Closed loop control of reproduction machine
US4319544A (en) * 1980-11-24 1982-03-16 Coulter Systems Corporation Digitally synthesized dynamic bias method and apparatus for toning control in developing latent electrophotographic images
US4502778A (en) * 1982-12-27 1985-03-05 International Business Machines Corporation System for monitoring and controlling electrophotographic toner operation

Also Published As

Publication number Publication date
WO1988008156A1 (en) 1988-10-20
JPH01502783A (ja) 1989-09-21
US4724461A (en) 1988-02-09
EP0308491B1 (de) 1992-05-27
EP0308491A1 (de) 1989-03-29

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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: NEXPRESS SOLUTIONS LLC, ROCHESTER, N.Y., US

8328 Change in the person/name/address of the agent

Free format text: FEY, H., DIPL.-PHYS., PAT.-ANW., 69115 HEIDELBERG

8339 Ceased/non-payment of the annual fee