GB9626695D0 - Toner quantity detection device - Google Patents

Toner quantity detection device

Info

Publication number
GB9626695D0
GB9626695D0 GBGB9626695.2A GB9626695A GB9626695D0 GB 9626695 D0 GB9626695 D0 GB 9626695D0 GB 9626695 A GB9626695 A GB 9626695A GB 9626695 D0 GB9626695 D0 GB 9626695D0
Authority
GB
United Kingdom
Prior art keywords
detection device
quantity detection
toner quantity
toner
detection
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.)
Granted
Application number
GBGB9626695.2A
Other versions
GB2307307B (en
GB2307307A (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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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
Priority claimed from JP16904194A external-priority patent/JP3500708B2/en
Priority claimed from JP16904294A external-priority patent/JP3379660B2/en
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority claimed from GB9420870A external-priority patent/GB2283581B/en
Publication of GB9626695D0 publication Critical patent/GB9626695D0/en
Publication of GB2307307A publication Critical patent/GB2307307A/en
Application granted granted Critical
Publication of GB2307307B publication Critical patent/GB2307307B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G03G15/0856—Detection or control means for the developer level
    • 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
    • G03G15/0856—Detection or control means for the developer level
    • G03G15/0862—Detection or control means for the developer level the level 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
    • G03G15/0893—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 in a closed loop within the sump of the developing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
GB9626695A 1993-10-15 1994-10-17 Toner quantity detection device Expired - Fee Related GB2307307B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP25876393 1993-10-15
JP16904194A JP3500708B2 (en) 1993-10-15 1994-06-28 Image forming device
JP16904294A JP3379660B2 (en) 1994-06-28 1994-06-28 Image forming device
GB9420870A GB2283581B (en) 1993-10-15 1994-10-17 Image forming equipment

Publications (3)

Publication Number Publication Date
GB9626695D0 true GB9626695D0 (en) 1997-02-12
GB2307307A GB2307307A (en) 1997-05-21
GB2307307B GB2307307B (en) 1998-03-18

Family

ID=27451218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9626695A Expired - Fee Related GB2307307B (en) 1993-10-15 1994-10-17 Toner quantity detection device

Country Status (1)

Country Link
GB (1) GB2307307B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3799162B2 (en) * 1997-07-03 2006-07-19 キヤノン株式会社 Developing cartridge and electrophotographic image forming apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043293A (en) * 1976-05-03 1977-08-23 Xerox Corporation Developability regulating apparatus
US4141645A (en) * 1977-07-29 1979-02-27 Eastman Kodak Company Toner concentration monitor
DE2927477C2 (en) * 1978-07-08 1982-03-11 Ricoh Co., Ltd., Tokyo Apparatus and method for measuring the developability of a powdered developer for electrostatography
JPS5667871A (en) * 1979-11-07 1981-06-08 Ricoh Co Ltd Toner concentration control unit
US4980727A (en) * 1990-04-02 1990-12-25 Eastman Kodak Company Toner concentration control system
US5117259A (en) * 1990-05-15 1992-05-26 Minolta Camera Kabushiki Kaisha Apparatus for measuring developer density
JP2897342B2 (en) * 1990-05-15 1999-05-31 ミノルタ株式会社 Developing device

Also Published As

Publication number Publication date
GB2307307B (en) 1998-03-18
GB2307307A (en) 1997-05-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081017