DE69417788D1 - Entwicklervorrichtung - Google Patents

Entwicklervorrichtung

Info

Publication number
DE69417788D1
DE69417788D1 DE69417788T DE69417788T DE69417788D1 DE 69417788 D1 DE69417788 D1 DE 69417788D1 DE 69417788 T DE69417788 T DE 69417788T DE 69417788 T DE69417788 T DE 69417788T DE 69417788 D1 DE69417788 D1 DE 69417788D1
Authority
DE
Germany
Prior art keywords
developer device
developer
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 - Lifetime
Application number
DE69417788T
Other languages
English (en)
Other versions
DE69417788T2 (de
Inventor
Yasuhiro Takai
Atsushi Ueda
Hirokazu Tanaka
Hideo Yamasa
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.)
Sharp Corp
Original Assignee
Sharp 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 JP05036466A external-priority patent/JP3091595B2/ja
Priority claimed from JP5137620A external-priority patent/JP2986001B2/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of DE69417788D1 publication Critical patent/DE69417788D1/de
Application granted granted Critical
Publication of DE69417788T2 publication Critical patent/DE69417788T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G15/0844—Arrangements for purging used developer from the developing unit
    • 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
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic 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
    • G03G15/0856—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
    • G03G15/0889—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for agitation or stirring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
DE69417788T 1993-02-25 1994-02-24 Entwicklervorrichtung Expired - Lifetime DE69417788T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP05036466A JP3091595B2 (ja) 1993-02-25 1993-02-25 現像装置
JP5137620A JP2986001B2 (ja) 1993-06-08 1993-06-08 現像装置

Publications (2)

Publication Number Publication Date
DE69417788D1 true DE69417788D1 (de) 1999-05-20
DE69417788T2 DE69417788T2 (de) 1999-10-21

Family

ID=26375534

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69417788T Expired - Lifetime DE69417788T2 (de) 1993-02-25 1994-02-24 Entwicklervorrichtung

Country Status (3)

Country Link
US (1) US5548385A (de)
EP (1) EP0613064B1 (de)
DE (1) DE69417788T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592270A (en) * 1992-07-21 1997-01-07 Sharp Kabushiki Kaisha Developing device in an electrophotographic apparatus capable of controlling a discharge of deteriorated developer and method of discharging deteriorated developer
US5722017A (en) * 1996-10-04 1998-02-24 Xerox Corporation Liquid developing material replenishment system and method
US7007589B1 (en) * 1997-09-15 2006-03-07 R. Sanderson Management, Inc. Piston assembly
US6625404B2 (en) 2002-01-24 2003-09-23 Kabushiki Kaisha Toshiba Apparatus for controlling the amount of developer material and toner concentration
US6587661B1 (en) 2002-01-30 2003-07-01 Kabushiki Kaisha Toshiba Image forming apparatus
US6810226B2 (en) * 2003-01-31 2004-10-26 Hewlett-Packard Development Company, L.P. Electrophotographic toner containment apparatus and methods
JP4614332B2 (ja) * 2004-06-18 2011-01-19 株式会社リコー 現像剤劣化検知方法、現像剤劣化検知装置、現像装置、画像形成装置及び画像形成方法
US7561834B2 (en) * 2006-08-16 2009-07-14 Xerox Corporation Developer dispense for enhanced stability in xerographic printing systems
JP4841576B2 (ja) * 2008-02-27 2011-12-21 コニカミノルタビジネステクノロジーズ株式会社 現像装置および画像形成装置
US20090245863A1 (en) * 2008-03-31 2009-10-01 Seiko Epson Corporation Developing device and image forming apparatus equipped with the developing device
JP4636122B2 (ja) * 2008-05-21 2011-02-23 コニカミノルタビジネステクノロジーズ株式会社 現像装置および画像形成装置
JP4591543B2 (ja) * 2008-05-21 2010-12-01 コニカミノルタビジネステクノロジーズ株式会社 現像装置および画像形成装置
JP5158142B2 (ja) 2010-07-01 2013-03-06 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置および現像装置
JP5742795B2 (ja) * 2012-07-10 2015-07-01 コニカミノルタ株式会社 画像形成装置
JP5675753B2 (ja) * 2012-11-08 2015-02-25 株式会社東芝 画像形成装置
JP2022160259A (ja) * 2021-04-06 2022-10-19 キヤノン株式会社 現像装置及び画像形成装置
JP2022160258A (ja) * 2021-04-06 2022-10-19 キヤノン株式会社 現像装置及び画像形成装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528082A (en) * 1978-08-22 1980-02-28 Ricoh Co Ltd Developing device
US4351604A (en) * 1979-04-26 1982-09-28 Ricoh Company, Ltd. Multi-color electrostatic copying apparatus
JPS59100471A (ja) * 1982-12-01 1984-06-09 Fuji Xerox Co Ltd 電子写真複写機用現像装置
JPS59170867A (ja) * 1983-03-17 1984-09-27 Minolta Camera Co Ltd トナ−濃度制御方法
JPS59176051U (ja) * 1983-05-11 1984-11-24 京セラミタ株式会社 複写機における現像剤適正条件検出装置
JPS6266283A (ja) * 1985-09-19 1987-03-25 Canon Inc 現像器における現像剤濃度制御方法
US5310425A (en) * 1987-05-19 1994-05-10 Tdk Corporation Toner concentration detector for a two-component developer
US4932356A (en) * 1987-12-04 1990-06-12 Konica Corporation Toner control device
JPH0221591A (ja) * 1988-07-08 1990-01-24 Matsushita Electric Ind Co Ltd 調理器
JPH0323479A (ja) * 1989-06-20 1991-01-31 Fujitsu Ltd 現像器のトナー検出方法
US5075726A (en) * 1989-07-28 1991-12-24 Konica Corporation Toner density control device with adjustable reference values for multiple developer copier
US5450178A (en) * 1990-09-10 1995-09-12 Fujitsu Limited Process and apparatus for replacing the carrier portion of a developing agent having toner used in an image-forming apparatus
JP2937445B2 (ja) * 1990-09-10 1999-08-23 富士通株式会社 現像剤の交換方法及び現像剤交換カートリッジ
US5095338A (en) * 1991-02-21 1992-03-10 Xerox Corporation Developer which discharges used carrier particles using a magnetic valve
US5237373A (en) * 1991-07-29 1993-08-17 Sharp Kabushiki Kaisha Image forming apparatus provided with automatic toner exhausting mechanism
JP2865451B2 (ja) * 1991-07-29 1999-03-08 シャープ株式会社 画像形成装置
JPH05150627A (ja) * 1991-11-29 1993-06-18 Sharp Corp 現像装置
US5430532A (en) * 1993-03-09 1995-07-04 Sharp Kabushiki Kaisha Developing device with a tilt detecting function designed for a trickle system

Also Published As

Publication number Publication date
EP0613064A3 (en) 1996-02-21
DE69417788T2 (de) 1999-10-21
EP0613064B1 (de) 1999-04-14
US5548385A (en) 1996-08-20
EP0613064A2 (de) 1994-08-31

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Legal Events

Date Code Title Description
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