CA1013806A - Automatic toner concentration control system - Google Patents

Automatic toner concentration control system

Info

Publication number
CA1013806A
CA1013806A CA159,093A CA159093A CA1013806A CA 1013806 A CA1013806 A CA 1013806A CA 159093 A CA159093 A CA 159093A CA 1013806 A CA1013806 A CA 1013806A
Authority
CA
Canada
Prior art keywords
control system
toner concentration
concentration control
automatic toner
automatic
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
CA159,093A
Other versions
CA159093S (en
Inventor
Loyd E. Tarver (Jr.)
Henry C. Locklar
Deh C. Tao
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 CA1013806A publication Critical patent/CA1013806A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S222/00—Dispensing
    • Y10S222/01—Xerography

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Wet Developing In Electrophotography (AREA)
CA159,093A 1971-12-17 1972-12-13 Automatic toner concentration control system Expired CA1013806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20904271A 1971-12-17 1971-12-17

Publications (1)

Publication Number Publication Date
CA1013806A true CA1013806A (en) 1977-07-12

Family

ID=22777084

Family Applications (1)

Application Number Title Priority Date Filing Date
CA159,093A Expired CA1013806A (en) 1971-12-17 1972-12-13 Automatic toner concentration control system

Country Status (7)

Country Link
US (1) US3756192A (en)
JP (1) JPS5213935B2 (en)
CA (1) CA1013806A (en)
DE (1) DE2257033C3 (en)
FR (1) FR2165421A5 (en)
GB (1) GB1376359A (en)
IT (1) IT967829B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7210357A (en) * 1971-08-06 1973-02-08
US3872824A (en) * 1972-02-22 1975-03-25 Dyk Research Corp Van Xerographic toner concentration control apparatus
US3869910A (en) * 1973-06-18 1975-03-11 Xerox Corp Diagnostic test device for developer materials
US3911861A (en) * 1973-12-03 1975-10-14 Addressograph Multigraph Programmable toner concentration control
US3926145A (en) * 1974-03-04 1975-12-16 Honeywell Inf Systems Toner concentration detector
US3999512A (en) * 1974-09-25 1976-12-28 Xerox Corporation Electrostatic development system with passive storage capacity
US4032227A (en) * 1976-01-15 1977-06-28 International Business Machines Corporation Toner concentration control apparatus
JPS53103736A (en) * 1977-02-23 1978-09-09 Ricoh Co Ltd Auto-bias development for xerographic copying machine
JPS546561A (en) * 1977-06-16 1979-01-18 Toshiba Corp Developer concentration controller
US4273843A (en) * 1978-06-12 1981-06-16 Konishiroku Photo Industry Co., Ltd. Method of detecting toner concentration in electrophotographic copying machine
JPS5519543A (en) * 1978-07-31 1980-02-12 Nippon Carbon Co Ltd Preparation of frp screw
NL7808419A (en) * 1978-08-14 1980-02-18 Oce Nederland Bv TONER CONCENTRATION REGULATION.
US4389972A (en) * 1979-08-04 1983-06-28 Ricoh Company, Ltd. Toner concentration control apparatus
JPS5624376A (en) * 1979-08-04 1981-03-07 Ricoh Co Ltd Toner concentration control unit of developer
JPS5667871A (en) * 1979-11-07 1981-06-08 Ricoh Co Ltd Toner concentration control unit
US4348099A (en) * 1980-04-07 1982-09-07 Xerox Corporation Closed loop control of reproduction machine
US4506973A (en) * 1983-06-20 1985-03-26 Eastman Kodak Company Toner concentration monitoring apparatus located behind a transparent photoconductor
US4553033A (en) * 1983-08-24 1985-11-12 Xerox Corporation Infrared reflectance densitometer
JPS6056069A (en) * 1983-09-06 1985-04-01 Matsushita Electric Ind Co Ltd Thin film forming device
JPS6089673U (en) * 1983-11-25 1985-06-19 ソニー株式会社 tape cassette
JP6004799B2 (en) * 2012-07-10 2016-10-12 キヤノン株式会社 Developer container and image forming apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2589414A (en) * 1947-09-23 1952-03-18 Gen Motors Corp Radiant energy transmission and reflection analyzer with adjustable filter
US2956487A (en) * 1955-03-23 1960-10-18 Rca Corp Electrostatic printing
US3233781A (en) * 1963-05-08 1966-02-08 Savin Business Machines Corp Toner control system
US3399652A (en) * 1967-06-14 1968-09-03 Addressograph Multigraph Automatic toner concentrate detector
US3604939A (en) * 1968-05-24 1971-09-14 Xerox Corp Toner concentration sensing apparatus having plural sensors and a flow control means for each sensor
US3610205A (en) * 1968-10-17 1971-10-05 Continental Can Co Apparatus for measuring and controlling mixture content
US3609047A (en) * 1970-03-02 1971-09-28 Xerox Corp Single beam photometer system wherein the absorbance of a sample is determined relative to a reference
US3669547A (en) * 1970-09-14 1972-06-13 Bell Telephone Labor Inc Optical spectrometer with transparent refracting chopper
US3677652A (en) * 1971-06-15 1972-07-18 Gte Sylvania Inc Fluid analyzer apparatus

Also Published As

Publication number Publication date
DE2257033B2 (en) 1980-01-10
JPS4869527A (en) 1973-09-21
GB1376359A (en) 1974-12-04
DE2257033A1 (en) 1973-06-20
US3756192A (en) 1973-09-04
FR2165421A5 (en) 1973-08-03
IT967829B (en) 1974-03-11
DE2257033C3 (en) 1980-09-04
JPS5213935B2 (en) 1977-04-18

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