DE3233190C2 - - Google Patents

Info

Publication number
DE3233190C2
DE3233190C2 DE3233190A DE3233190A DE3233190C2 DE 3233190 C2 DE3233190 C2 DE 3233190C2 DE 3233190 A DE3233190 A DE 3233190A DE 3233190 A DE3233190 A DE 3233190A DE 3233190 C2 DE3233190 C2 DE 3233190C2
Authority
DE
Germany
Prior art keywords
toner
developer material
rotatable roller
magnetic brush
roller
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
DE3233190A
Other languages
German (de)
English (en)
Other versions
DE3233190A1 (de
Inventor
Akio Okamura
Shuji Tanaka
Tomotsu Ebina Kanagawa Jp Sakamoto
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Publication of DE3233190A1 publication Critical patent/DE3233190A1/de
Application granted granted Critical
Publication of DE3233190C2 publication Critical patent/DE3233190C2/de
Granted 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
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE19823233190 1981-09-08 1982-09-07 Vorrichtung zur steuerung der dichte von entwicklermaterial Granted DE3233190A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56140253A JPS5842073A (ja) 1981-09-08 1981-09-08 現像剤の濃度制御装置

Publications (2)

Publication Number Publication Date
DE3233190A1 DE3233190A1 (de) 1983-03-24
DE3233190C2 true DE3233190C2 (US20100223739A1-20100909-C00025.png) 1987-05-21

Family

ID=15264473

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823233190 Granted DE3233190A1 (de) 1981-09-08 1982-09-07 Vorrichtung zur steuerung der dichte von entwicklermaterial

Country Status (4)

Country Link
US (1) US4419960A (US20100223739A1-20100909-C00025.png)
JP (1) JPS5842073A (US20100223739A1-20100909-C00025.png)
DE (1) DE3233190A1 (US20100223739A1-20100909-C00025.png)
GB (1) GB2107221B (US20100223739A1-20100909-C00025.png)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648702A (en) * 1982-10-27 1987-03-10 Canon Kabushiki Kaisha Toner density detector and toner supplier
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
JPS6024564A (ja) * 1983-07-21 1985-02-07 Fuji Xerox Co Ltd カラ−トナ−濃度検出装置
JPS6024570A (ja) * 1983-07-21 1985-02-07 Fuji Xerox Co Ltd カラ−トナ−濃度検出装置
JPS6076774A (ja) * 1983-10-04 1985-05-01 Fuji Xerox Co Ltd 現像剤濃度検出装置
JPS61112175A (ja) * 1984-08-06 1986-05-30 Sharp Corp 現像装置
JPS61212868A (ja) * 1985-03-18 1986-09-20 Fuji Xerox Co Ltd 電子複写機のトナ−濃度検出装置
JP3023009B2 (ja) * 1991-05-14 2000-03-21 ミノルタ株式会社 光学式トナー濃度検出方法におけるトラブル検出方法
JP3581720B2 (ja) * 1994-01-26 2004-10-27 株式会社リコー 現像装置
KR100561381B1 (ko) * 1998-05-08 2006-03-16 삼성전자주식회사 습식 인쇄기의 현상액 농도 측정장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817616A (en) * 1972-10-06 1974-06-18 Xerox Corp Thermal chamber for a developability regulating apparatus
JPS5246095B2 (US20100223739A1-20100909-C00025.png) * 1973-05-25 1977-11-21
US3911861A (en) * 1973-12-03 1975-10-14 Addressograph Multigraph Programmable toner concentration control
JPS6019504B2 (ja) * 1976-04-23 1985-05-16 キヤノン株式会社 現像剤の濃度調整方法及びその装置
JPS5343534A (en) * 1976-10-01 1978-04-19 Toshiba Corp Control device for density of developing agent
US4273843A (en) * 1978-06-12 1981-06-16 Konishiroku Photo Industry Co., Ltd. Method of detecting toner concentration in electrophotographic copying machine
JPS5636670A (en) * 1979-09-04 1981-04-09 Ricoh Co Ltd Magnetic brush developing unit

Also Published As

Publication number Publication date
GB2107221B (en) 1985-03-20
JPS5842073A (ja) 1983-03-11
JPH0473153B2 (US20100223739A1-20100909-C00025.png) 1992-11-20
US4419960A (en) 1983-12-13
DE3233190A1 (de) 1983-03-24
GB2107221A (en) 1983-04-27

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: G03G 15/06

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee