AU477133B2 - Method of and apparatus for measuring or measuring and controlling the toner concentration in electrophotographic reproduction machines - Google Patents

Method of and apparatus for measuring or measuring and controlling the toner concentration in electrophotographic reproduction machines

Info

Publication number
AU477133B2
AU477133B2 AU45313/72A AU4531372A AU477133B2 AU 477133 B2 AU477133 B2 AU 477133B2 AU 45313/72 A AU45313/72 A AU 45313/72A AU 4531372 A AU4531372 A AU 4531372A AU 477133 B2 AU477133 B2 AU 477133B2
Authority
AU
Australia
Prior art keywords
measuring
controlling
toner concentration
electrophotographic reproduction
reproduction 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
Application number
AU45313/72A
Other languages
English (en)
Other versions
AU4531372A (en
Inventor
Hartmut Bock Dr.
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
Priority claimed from DE19712139323 external-priority patent/DE2139323C3/de
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of AU4531372A publication Critical patent/AU4531372A/en
Application granted granted Critical
Publication of AU477133B2 publication Critical patent/AU477133B2/en
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
    • G03G15/06—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
    • G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
    • G03G15/0891—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers
    • 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
AU45313/72A 1971-08-06 1972-08-04 Method of and apparatus for measuring or measuring and controlling the toner concentration in electrophotographic reproduction machines Expired AU477133B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE821393 1971-08-06
DE19712139323 DE2139323C3 (de) 1971-08-06 Vorrichtung zur Messung der Tonerkonzentration des Entwicklers in einer Entwicklungsstation

Publications (2)

Publication Number Publication Date
AU4531372A AU4531372A (en) 1974-02-07
AU477133B2 true AU477133B2 (en) 1976-10-14

Family

ID=5815922

Family Applications (1)

Application Number Title Priority Date Filing Date
AU45313/72A Expired AU477133B2 (en) 1971-08-06 1972-08-04 Method of and apparatus for measuring or measuring and controlling the toner concentration in electrophotographic reproduction machines

Country Status (6)

Country Link
US (1) US3924462A (cs)
JP (1) JPS5538666B2 (cs)
AU (1) AU477133B2 (cs)
FR (1) FR2155223A5 (cs)
GB (1) GB1401659A (cs)
NL (1) NL7210357A (cs)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000944A (en) * 1975-02-18 1977-01-04 Xerox Corporation Photoreceptor for electrostatic reproduction machines with built-in electrode
US4211558A (en) * 1975-07-23 1980-07-08 Konishiroku Photo Industry Co., Ltd. Color printing method
US4082445A (en) * 1975-11-21 1978-04-04 Xerox Corporation Toner control system for an electrostatic reproduction machine
JPS52119233A (en) * 1976-03-08 1977-10-06 Sharp Corp Toner supply means
CA1128114A (en) * 1978-04-10 1982-07-20 Clement C. Wilson Test cycle quality control system for an electrophotographic machine
US4183657A (en) * 1978-04-10 1980-01-15 International Business Machines Corporation Dynamic reference for an image quality control system
JPS5433728A (en) * 1978-08-10 1979-03-12 Canon Inc Zerography
JPS5433727A (en) * 1978-08-10 1979-03-12 Canon Inc Zerography
US4347299A (en) * 1978-08-16 1982-08-31 Minolta Camera Kabushiki Kaisha Method of controlling toner concentration for electrophotographic copying apparatus
US4607944A (en) * 1985-06-07 1986-08-26 Eastman Kodak Company Apparatus for controlling toner replenishment in electrographic copier

Family Cites Families (25)

* 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
US3094049A (en) * 1961-02-03 1963-06-18 Xerox Corp Xerographic developer measuring apparatus
US3129113A (en) * 1962-02-13 1964-04-14 Xerox Corp Automatic powder applicator apparatus
US3251761A (en) * 1962-08-28 1966-05-17 Bayer Ag Process for the production of organic compounds containing nitrogen and chlorine combined in an-n=ccl-radical
US3348521A (en) * 1962-08-28 1967-10-24 Xerox Corp Automatic toner control system
US3233781A (en) * 1963-05-08 1966-02-08 Savin Business Machines Corp Toner control system
US3348523A (en) * 1965-04-07 1967-10-24 Xerox Corp Automatic toner control system
US3376853A (en) * 1966-04-29 1968-04-09 Xerox Corp Electrostatic toner control
US3376854A (en) * 1966-06-01 1968-04-09 Xerox Corp Automatic toner dispensing control
US3382796A (en) * 1967-01-10 1968-05-14 Continental Can Co Apparatus for continuous electrostatic screen printing with density control
US3399652A (en) * 1967-06-14 1968-09-03 Addressograph Multigraph Automatic toner concentrate detector
US3409901A (en) * 1967-07-12 1968-11-05 Ibm Automatic toner concentration control for use with crt input
US3430606A (en) * 1968-01-02 1969-03-04 Xerox Corp Electroscopic particle sensor
US3526338A (en) * 1968-01-02 1970-09-01 Xerox Corp Method and controller for dispensing electroscopic material
US3527387A (en) * 1968-05-24 1970-09-08 Xerox Corp Developer replenishing programming system
US3677222A (en) * 1969-02-24 1972-07-18 Canon Kk Device for automatically regulating the concentration of developing solution
US3682132A (en) * 1969-03-03 1972-08-08 Xerox Corp Automatic developer controller
BE757430A (fr) * 1969-10-17 1971-04-13 Xerox Corp Systeme de commande automatique de developpabilite
US3712203A (en) * 1969-11-15 1973-01-23 Iwatsu Electric Co Ltd Automatic control device for the toner concentration within a developer in an electrostatic copy machine
US3659556A (en) * 1970-08-19 1972-05-02 Xerox Corp Programmable toner dispenser
US3674353A (en) * 1971-07-01 1972-07-04 Eastman Kodak Co Toner concentration control apparatus
NL7210356A (cs) * 1971-08-06 1973-02-08
US3756192A (en) * 1971-12-17 1973-09-04 Ibm Automatic toner concentration control system
US3777173A (en) * 1972-02-22 1973-12-04 Dyke Res Van Xerographic toner concentration measuring apparatus and method
US3791744A (en) * 1972-02-22 1974-02-12 Dyk Res Corp Van Xerographic toner concentration measuring apparatus and method

Also Published As

Publication number Publication date
AU4531372A (en) 1974-02-07
FR2155223A5 (cs) 1973-05-18
JPS4829448A (cs) 1973-04-19
JPS5538666B2 (cs) 1980-10-06
US3924462A (en) 1975-12-09
GB1401659A (en) 1975-07-16
NL7210357A (cs) 1973-02-08
DE2139323A1 (de) 1973-02-15
DE2139323B2 (de) 1977-06-23

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