JP2020076832A - 画像形成装置 - Google Patents

画像形成装置 Download PDF

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Publication number
JP2020076832A
JP2020076832A JP2018209081A JP2018209081A JP2020076832A JP 2020076832 A JP2020076832 A JP 2020076832A JP 2018209081 A JP2018209081 A JP 2018209081A JP 2018209081 A JP2018209081 A JP 2018209081A JP 2020076832 A JP2020076832 A JP 2020076832A
Authority
JP
Japan
Prior art keywords
developing
developer
image forming
forming apparatus
image
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.)
Pending
Application number
JP2018209081A
Other languages
English (en)
Japanese (ja)
Other versions
JP2020076832A5 (enExample
Inventor
康祐 竹内
Yasuhiro Takeuchi
康祐 竹内
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP2018209081A priority Critical patent/JP2020076832A/ja
Priority to US16/662,623 priority patent/US10955767B2/en
Publication of JP2020076832A publication Critical patent/JP2020076832A/ja
Publication of JP2020076832A5 publication Critical patent/JP2020076832A5/ja
Pending legal-status Critical Current

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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
    • G03G15/0887—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
    • 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
    • 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
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals
    • 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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration
    • 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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0942—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with means for preventing toner scattering from the magnetic brush, e.g. magnetic seals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
JP2018209081A 2018-11-06 2018-11-06 画像形成装置 Pending JP2020076832A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018209081A JP2020076832A (ja) 2018-11-06 2018-11-06 画像形成装置
US16/662,623 US10955767B2 (en) 2018-11-06 2019-10-24 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018209081A JP2020076832A (ja) 2018-11-06 2018-11-06 画像形成装置

Publications (2)

Publication Number Publication Date
JP2020076832A true JP2020076832A (ja) 2020-05-21
JP2020076832A5 JP2020076832A5 (enExample) 2021-12-09

Family

ID=70459552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018209081A Pending JP2020076832A (ja) 2018-11-06 2018-11-06 画像形成装置

Country Status (2)

Country Link
US (1) US10955767B2 (enExample)
JP (1) JP2020076832A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023065846A (ja) * 2021-10-28 2023-05-15 ヒューレット－パッカード デベロップメント カンパニー エル．ピー． 画像形成装置
US20250314993A1 (en) * 2024-04-09 2025-10-09 Kyocera Document Solutions Inc. Development device and image forming apparatus provided therewith
JP2025159905A (ja) * 2024-04-09 2025-10-22 京セラドキュメントソリューションズ株式会社 現像装置およびそれを備えた画像形成装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61217082A (ja) * 1985-03-23 1986-09-26 Minolta Camera Co Ltd 静電潜像現像装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH087498B2 (ja) 1987-10-16 1996-01-29 日立金属株式会社 現像装置
JP4187617B2 (ja) 2003-09-09 2008-11-26 シャープ株式会社 現像装置，画像形成装置
JP5742011B2 (ja) 2011-03-18 2015-07-01 株式会社リコー 作像装置、画像形成装置及びプロセスカートリッジ
JP2015025925A (ja) 2013-07-25 2015-02-05 富士ゼロックス株式会社 現像装置、画像形成装置
JP6366424B2 (ja) 2014-08-21 2018-08-01 キヤノン株式会社 画像形成装置
JP6440016B2 (ja) * 2014-09-04 2018-12-19 株式会社リコー 現像装置、プロセスカートリッジ、及び画像形成装置
JP6403584B2 (ja) 2015-01-22 2018-10-10 キヤノン株式会社 現像装置
US10481521B2 (en) * 2017-03-30 2019-11-19 Canon Kabushiki Kaisha Developing device having spaced cover portion and frame

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61217082A (ja) * 1985-03-23 1986-09-26 Minolta Camera Co Ltd 静電潜像現像装置

Also Published As

Publication number Publication date
US10955767B2 (en) 2021-03-23
US20200142333A1 (en) 2020-05-07

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