BE815209A - IMAGE THRESHOLD DENSITY CONTROL UNIT AND MACHINE USING THIS UNIT - Google Patents

IMAGE THRESHOLD DENSITY CONTROL UNIT AND MACHINE USING THIS UNIT

Info

Publication number
BE815209A
BE815209A BE144468A BE144468A BE815209A BE 815209 A BE815209 A BE 815209A BE 144468 A BE144468 A BE 144468A BE 144468 A BE144468 A BE 144468A BE 815209 A BE815209 A BE 815209A
Authority
BE
Belgium
Prior art keywords
unit
machine
density control
control unit
image threshold
Prior art date
Application number
BE144468A
Other languages
French (fr)
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 filed Critical
Publication of BE815209A publication Critical patent/BE815209A/en

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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/0121—Details of unit for developing
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Color Electrophotography (AREA)
  • Developing For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
BE144468A 1973-05-17 1974-05-17 IMAGE THRESHOLD DENSITY CONTROL UNIT AND MACHINE USING THIS UNIT BE815209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00361112A US3815988A (en) 1973-05-17 1973-05-17 Image density control apparatus

Publications (1)

Publication Number Publication Date
BE815209A true BE815209A (en) 1974-09-16

Family

ID=23420693

Family Applications (1)

Application Number Title Priority Date Filing Date
BE144468A BE815209A (en) 1973-05-17 1974-05-17 IMAGE THRESHOLD DENSITY CONTROL UNIT AND MACHINE USING THIS UNIT

Country Status (12)

Country Link
US (1) US3815988A (en)
JP (1) JPS5536144B2 (en)
AR (1) AR205710A1 (en)
BE (1) BE815209A (en)
BR (1) BR7403928D0 (en)
CA (1) CA1036654A (en)
DE (1) DE2411855C3 (en)
FR (1) FR2230003B1 (en)
GB (1) GB1458707A (en)
IT (1) IT1012346B (en)
NL (1) NL166805C (en)
ZA (1) ZA743132B (en)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926957B2 (en) * 1973-12-28 1984-07-02 キヤノン株式会社 Color electrophotographic method
US4045218A (en) * 1974-03-29 1977-08-30 Xerox Corporation Method for electrostatically producing a color accented photocopy
US3892481A (en) * 1974-06-17 1975-07-01 Savin Business Machines Corp Automatic development electrode bias control system
USRE31964E (en) * 1974-06-17 1985-08-06 Savin Corporation Automatic development electrode bias control system
US3936182A (en) * 1974-08-12 1976-02-03 Xerox Corporation Control arrangement for an electrostatographic reproduction apparatus
US3960444A (en) * 1974-08-14 1976-06-01 Xerox Corporation Electrophotographic printing machine
JPS5939742B2 (en) * 1975-10-03 1984-09-26 キヤノン株式会社 Copy machine control device
JPS5243439A (en) * 1975-10-03 1977-04-05 Ricoh Co Ltd Generator for the bias voltage for the electrophotographic copying machine
US4093457A (en) * 1976-06-10 1978-06-06 Xerox Corporation Method of transfer
DE2759637C2 (en) * 1976-10-19 1986-01-30 Ricoh Co., Ltd., Tokio/Tokyo Device for setting the development voltage and / or the exposure intensity for an electrophotographic copier
GB1561923A (en) * 1976-12-31 1980-03-05 Xerox Corp Control system for an electrostatogrophic copying machine
JPS5393030A (en) * 1977-01-27 1978-08-15 Ricoh Co Ltd Copying process control method of electrophotographic copying machine
JPS5398834A (en) * 1977-02-09 1978-08-29 Canon Inc Controller for electrostatic device
DE2807317C3 (en) * 1977-02-23 1982-02-11 Ricoh Co., Ltd., Tokyo Procedure for maintaining optimal conditions in electrophotography
JPS53106129A (en) * 1977-02-28 1978-09-14 Canon Inc Recording electrostatic device
JPS53136838A (en) * 1977-05-04 1978-11-29 Ricoh Co Ltd Automatic controlling method of image quality in transfer type electrostatic copier
JPS543540A (en) * 1977-06-10 1979-01-11 Canon Inc Automatic exposure device
JPS543546A (en) * 1977-06-10 1979-01-11 Canon Inc Exposure device
JPS5486347A (en) * 1977-12-21 1979-07-09 Canon Inc Development stabilizing system
JPS5497044A (en) * 1978-01-17 1979-07-31 Konishiroku Photo Ind Co Ltd Toner concentration controller for zerographic copier
CA1128114A (en) * 1978-04-10 1982-07-20 Clement C. Wilson Test cycle quality control system for an electrophotographic machine
JPS54141645A (en) * 1978-04-26 1979-11-05 Ricoh Co Ltd Copy image adjusting method
US4277162A (en) * 1978-07-13 1981-07-07 Ricoh Company, Ltd. Electrophotographic apparatus comprising density sensor means
US4348099A (en) * 1980-04-07 1982-09-07 Xerox Corporation Closed loop control of reproduction machine
JPS57100449A (en) * 1980-12-16 1982-06-22 Canon Inc Color copying device
JPS57102670A (en) * 1980-12-19 1982-06-25 Canon Inc Color copying machine
DE3149668A1 (en) * 1980-12-16 1982-07-15 Canon K.K., Tokyo "COLOR COPIER"
JPS57100448A (en) * 1980-12-16 1982-06-22 Canon Inc Color copying device
GB2111674B (en) * 1981-10-30 1985-09-25 Konishiroku Photo Ind Monitoring in electrostatic reproducing apparatus
US4403848A (en) * 1982-02-17 1983-09-13 Xerox Corporation Electronic color printing system
JPS5844451A (en) * 1982-07-12 1983-03-15 Canon Inc Stabilizing method for surface potential
JPS5925545U (en) * 1982-08-11 1984-02-17 株式会社リコー double-sided copy machine
US4600294A (en) * 1983-04-01 1986-07-15 Canon Kabushiki Kaisha Image forming apparatus with detector and control
DE3526878C2 (en) * 1984-07-27 1997-10-02 Konishiroku Photo Ind Device for generating a multicolor image
US4803514A (en) * 1984-10-22 1989-02-07 Konishiroku Photo Industry Co., Ltd. Multi-color image forming method and apparatus
JPS61166558A (en) * 1985-01-18 1986-07-28 Konishiroku Photo Ind Co Ltd Image forming device
US4607944A (en) * 1985-06-07 1986-08-26 Eastman Kodak Company Apparatus for controlling toner replenishment in electrographic copier
DE3530011C3 (en) * 1985-08-22 1994-09-29 Aeg Sensorsysteme Gmbh Method and device for suppressing the influence of stray light in a measuring light barrier
GB2180947B (en) * 1985-08-31 1989-08-09 Ricoh Kk Image recording device
DE3644355A1 (en) * 1985-12-24 1987-07-30 Toshiba Kawasaki Kk IMAGE GENERATION DEVICE
US4806980A (en) * 1986-11-06 1989-02-21 Eastman Kodak Company Dynamic feedforward process control for electrographic machines
US4780744A (en) * 1987-02-18 1988-10-25 Eastman Kodak Company System for quality monitoring and control in an electrophotographic process
US5124750A (en) * 1989-09-05 1992-06-23 Minolta Camera Kabushiki Kaisha Toner density detecting method, and image forming method and apparatus employing the toner density detecting method
US5153658A (en) * 1991-08-09 1992-10-06 Xerox Corporation Mac cleaner brush film control
JPH0553422A (en) * 1991-08-29 1993-03-05 Minolta Camera Co Ltd Image forming device
US5328787A (en) * 1993-05-24 1994-07-12 Eastman Kodak Company Method for assessing and controlling the sensitometric characteristics of photographic products

Family Cites Families (3)

* 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 (en) * 1969-08-29 1971-03-01 Xerox Corp APPARATUS FOR THE CONTROL OF DEVELOPMENT ELECTRODES
US3674532A (en) * 1970-07-23 1972-07-04 Eastman Kodak Co Control for bias of magnetic brush and method

Also Published As

Publication number Publication date
BR7403928D0 (en) 1975-01-21
DE2411855C3 (en) 1979-06-21
GB1458707A (en) 1976-12-15
IT1012346B (en) 1977-03-10
JPS5020730A (en) 1975-03-05
CA1036654A (en) 1978-08-15
NL7405155A (en) 1974-11-19
ZA743132B (en) 1975-05-28
NL166805C (en) 1981-09-15
DE2411855B2 (en) 1978-10-12
DE2411855A1 (en) 1974-12-05
NL166805B (en) 1981-04-15
AR205710A1 (en) 1976-05-31
FR2230003A1 (en) 1974-12-13
US3815988A (en) 1974-06-11
JPS5536144B2 (en) 1980-09-18
FR2230003B1 (en) 1976-12-24

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