GB1475547A - Apparatus for controlling toner concentration of a developer in electrostatic development - Google Patents

Apparatus for controlling toner concentration of a developer in electrostatic development

Info

Publication number
GB1475547A
GB1475547A GB2197674A GB2197674A GB1475547A GB 1475547 A GB1475547 A GB 1475547A GB 2197674 A GB2197674 A GB 2197674A GB 2197674 A GB2197674 A GB 2197674A GB 1475547 A GB1475547 A GB 1475547A
Authority
GB
United Kingdom
Prior art keywords
developer
probe
toner
amount
attached
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
GB2197674A
Other languages
English (en)
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of GB1475547A publication Critical patent/GB1475547A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
GB2197674A 1973-05-25 1974-05-17 Apparatus for controlling toner concentration of a developer in electrostatic development Expired GB1475547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48057831A JPS5246095B2 (enrdf_load_html_response) 1973-05-25 1973-05-25

Publications (1)

Publication Number Publication Date
GB1475547A true GB1475547A (en) 1977-06-01

Family

ID=13066870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2197674A Expired GB1475547A (en) 1973-05-25 1974-05-17 Apparatus for controlling toner concentration of a developer in electrostatic development

Country Status (4)

Country Link
US (1) US3897748A (enrdf_load_html_response)
JP (1) JPS5246095B2 (enrdf_load_html_response)
DE (1) DE2425060C3 (enrdf_load_html_response)
GB (1) GB1475547A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029584A1 (en) * 1979-11-26 1981-06-03 Hitachi, Ltd. Method for operating electrophotographic copying apparatus

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613004Y2 (enrdf_load_html_response) * 1975-01-13 1986-01-30
JPS56275Y2 (enrdf_load_html_response) * 1977-04-18 1981-01-07
JPS6020119Y2 (ja) * 1978-03-27 1985-06-17 株式会社東芝 トナ−濃度制御装置
JPS54135537A (en) * 1978-04-12 1979-10-20 Ricoh Co Ltd Developing performance detector for binary dry type developer
JPS602598Y2 (ja) * 1978-04-19 1985-01-24 株式会社東芝 トナ−濃度検知装置
US4273843A (en) * 1978-06-12 1981-06-16 Konishiroku Photo Industry Co., Ltd. Method of detecting toner concentration in electrophotographic copying machine
JPS5521070A (en) * 1978-08-02 1980-02-14 Toshiba Corp Toner density control device in dry type developing apparatus
JPS5842073A (ja) * 1981-09-08 1983-03-11 Fuji Xerox Co Ltd 現像剤の濃度制御装置
JPS59164574A (ja) * 1983-03-10 1984-09-17 Fuji Xerox Co Ltd 乾式電子写真式複写機のトナ−濃度検出装置
GB2186818B (en) * 1986-02-20 1990-07-11 Ricoh Kk Developing electrostatic latent images
US4980727A (en) * 1990-04-02 1990-12-25 Eastman Kodak Company Toner concentration control system
JP2011022293A (ja) * 2009-07-15 2011-02-03 Toshiba Corp 現像装置、画像形成装置および現像剤劣化検知方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094049A (en) * 1961-02-03 1963-06-18 Xerox Corp Xerographic developer measuring apparatus
US3390652A (en) * 1967-02-06 1968-07-02 Nathan K. Morris Hand held and operated sewing machine
US3430606A (en) * 1968-01-02 1969-03-04 Xerox Corp Electroscopic particle sensor
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
US3572551A (en) * 1969-03-27 1971-03-30 Rca Corp Apparatus for monitoring and controlling the concentration of toner in a developer mix
BE757197A (fr) * 1969-10-09 1971-03-16 Rca Corp Dispositif pour controler et regler la concentration de particules de poudre dans un melange de poudre et de particules magnetiques
US3707134A (en) * 1970-08-21 1972-12-26 Addressograph Multigraph Automatic toner concentrate detector and control device
US3830401A (en) * 1971-12-13 1974-08-20 Eastman Kodak Co Toner concentration monitoring apparatus
US3791744A (en) * 1972-02-22 1974-02-12 Dyk Res Corp Van Xerographic toner concentration measuring apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029584A1 (en) * 1979-11-26 1981-06-03 Hitachi, Ltd. Method for operating electrophotographic copying apparatus

Also Published As

Publication number Publication date
DE2425060C3 (de) 1981-09-10
JPS5010141A (enrdf_load_html_response) 1975-02-01
JPS5246095B2 (enrdf_load_html_response) 1977-11-21
US3897748A (en) 1975-08-05
DE2425060A1 (de) 1974-12-12
DE2425060B2 (de) 1981-01-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee