JP2024152199A - 現像装置 - Google Patents

現像装置 Download PDF

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Publication number
JP2024152199A
JP2024152199A JP2023066247A JP2023066247A JP2024152199A JP 2024152199 A JP2024152199 A JP 2024152199A JP 2023066247 A JP2023066247 A JP 2023066247A JP 2023066247 A JP2023066247 A JP 2023066247A JP 2024152199 A JP2024152199 A JP 2024152199A
Authority
JP
Japan
Prior art keywords
supply roller
magnetic pole
magnetic
flux density
pole
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
JP2023066247A
Other languages
English (en)
Japanese (ja)
Other versions
JP2024152199A5 (https=
Inventor
智幸 坂巻
Tomoyuki Sakamaki
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 JP2023066247A priority Critical patent/JP2024152199A/ja
Priority to US18/606,016 priority patent/US20240353776A1/en
Publication of JP2024152199A publication Critical patent/JP2024152199A/ja
Publication of JP2024152199A5 publication Critical patent/JP2024152199A5/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
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
    • 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade
    • 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
    • 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
    • G03G15/09—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
JP2023066247A 2023-04-14 2023-04-14 現像装置 Pending JP2024152199A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2023066247A JP2024152199A (ja) 2023-04-14 2023-04-14 現像装置
US18/606,016 US20240353776A1 (en) 2023-04-14 2024-03-15 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2023066247A JP2024152199A (ja) 2023-04-14 2023-04-14 現像装置

Publications (2)

Publication Number Publication Date
JP2024152199A true JP2024152199A (ja) 2024-10-25
JP2024152199A5 JP2024152199A5 (https=) 2026-04-13

Family

ID=93122363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023066247A Pending JP2024152199A (ja) 2023-04-14 2023-04-14 現像装置

Country Status (2)

Country Link
US (1) US20240353776A1 (https=)
JP (1) JP2024152199A (https=)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003005530A (ja) * 2001-06-22 2003-01-08 Ricoh Co Ltd 現像装置及び画像形成装置
JP2006227149A (ja) * 2005-02-16 2006-08-31 Matsushita Electric Ind Co Ltd 現像装置及びプロセスカートリッジ並びに画像形成装置
EP1762907B1 (en) * 2005-09-13 2010-06-30 Ricoh Company, Ltd. Development roller and surface treatment device
JP4932339B2 (ja) * 2006-06-21 2012-05-16 京セラミタ株式会社 現像装置及びこれを備えた画像形成装置
JP2015184424A (ja) * 2014-03-24 2015-10-22 キヤノン株式会社 現像装置及び画像形成装置
US10175608B2 (en) * 2016-03-17 2019-01-08 Kyocera Document Solutions Inc. Developing device and image forming apparatus provided with same
JP6424860B2 (ja) * 2016-04-14 2018-11-21 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、およびこれを備えた画像形成装置

Also Published As

Publication number Publication date
US20240353776A1 (en) 2024-10-24

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Effective date: 20260403

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