JP5825794B2 - 現像装置及びマグネットローラ - Google Patents

現像装置及びマグネットローラ Download PDF

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Publication number
JP5825794B2
JP5825794B2 JP2011021462A JP2011021462A JP5825794B2 JP 5825794 B2 JP5825794 B2 JP 5825794B2 JP 2011021462 A JP2011021462 A JP 2011021462A JP 2011021462 A JP2011021462 A JP 2011021462A JP 5825794 B2 JP5825794 B2 JP 5825794B2
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Japan
Prior art keywords
magnet
polarity
magnetic
magnet roller
longitudinal direction
Prior art date
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Active
Application number
JP2011021462A
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English (en)
Japanese (ja)
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JP2012163584A5 (enExample
JP2012163584A (ja
Inventor
坂巻　智幸
智幸 坂巻
貴則 飯田
貴則 飯田
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
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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 JP2011021462A priority Critical patent/JP5825794B2/ja
Priority to US13/364,758 priority patent/US8934819B2/en
Publication of JP2012163584A publication Critical patent/JP2012163584A/ja
Publication of JP2012163584A5 publication Critical patent/JP2012163584A5/ja
Priority to US14/566,850 priority patent/US9223252B2/en
Priority to US14/922,350 priority patent/US9442428B2/en
Application granted granted Critical
Publication of JP5825794B2 publication Critical patent/JP5825794B2/ja
Active legal-status Critical Current
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    • 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
    • G03G15/0928—Details concerning the magnetic brush roller structure, e.g. magnet configuration relating to the shell, e.g. structure, composition
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
JP2011021462A 2011-02-03 2011-02-03 現像装置及びマグネットローラ Active JP5825794B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2011021462A JP5825794B2 (ja) 2011-02-03 2011-02-03 現像装置及びマグネットローラ
US13/364,758 US8934819B2 (en) 2011-02-03 2012-02-02 Developing apparatus
US14/566,850 US9223252B2 (en) 2011-02-03 2014-12-11 Developing apparatus
US14/922,350 US9442428B2 (en) 2011-02-03 2015-10-26 Developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011021462A JP5825794B2 (ja) 2011-02-03 2011-02-03 現像装置及びマグネットローラ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2015200154A Division JP5989213B2 (ja) 2015-10-08 2015-10-08 現像装置及びマグネットローラ

Publications (3)

Publication Number Publication Date
JP2012163584A JP2012163584A (ja) 2012-08-30
JP2012163584A5 JP2012163584A5 (enExample) 2014-03-13
JP5825794B2 true JP5825794B2 (ja) 2015-12-02

Family

ID=46600709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011021462A Active JP5825794B2 (ja) 2011-02-03 2011-02-03 現像装置及びマグネットローラ

Country Status (2)

Country Link
US (3) US8934819B2 (enExample)
JP (1) JP5825794B2 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6016393B2 (ja) 2012-03-15 2016-10-26 キヤノン株式会社 現像装置
JP6288976B2 (ja) 2013-07-31 2018-03-07 キヤノン株式会社 現像装置
US9268263B2 (en) 2014-05-13 2016-02-23 Canon Kabushiki Kaisha Development apparatus and image forming apparatus
JP6584138B2 (ja) * 2014-06-17 2019-10-02 キヤノン株式会社 現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6938167B2 (ja) 2016-03-08 2021-09-22 キヤノン株式会社 画像形成装置
US9791806B1 (en) * 2016-04-25 2017-10-17 Lexmark International, Inc. Developer roll having magnetic zones of varying axial length for a dual component development electrophotographic image forming device
US9977368B2 (en) * 2016-07-22 2018-05-22 Canon Kabushiki Kaisha Developing apparatus, process cartridge, and image forming apparatus
KR20220029007A (ko) * 2020-09-01 2022-03-08 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 복수의 자극을 구비하는 자기 부재를 채용한 현상기
JP7631120B2 (ja) 2021-06-21 2025-02-18 キヤノン株式会社 現像装置

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262542B2 (de) 1971-12-25 1979-05-10 Canon K.K., Tokio Prüfvorrichtung für die Konzentration von Tonerpartikel·! in der Trägerflüssigkeit eines elektrophotographischen Dispersionsentwicklers
JPS5211595B2 (enExample) 1972-09-29 1977-03-31
FR2227567B1 (enExample) * 1973-04-26 1978-04-21 Xerox Corp
JPS6279482A (ja) * 1985-10-03 1987-04-11 Fujitsu Ltd 現像装置
JP2512025B2 (ja) * 1987-10-28 1996-07-03 松下電器産業株式会社 マグネットロ―ルの製造方法
JPH0566679A (ja) * 1991-09-05 1993-03-19 Canon Inc 現像装置及びプロセスカートリツジ
JPH08250326A (ja) * 1996-01-16 1996-09-27 Canon Inc マグネットロール
JP2872145B2 (ja) 1996-09-13 1999-03-17 新潟日本電気株式会社 現像装置
JP2000114031A (ja) * 1998-10-09 2000-04-21 Toda Kogyo Corp マグネットロール
US6546222B2 (en) 2000-06-08 2003-04-08 Canon Kabushiki Kaisha Developing apparatus
JP2003122118A (ja) 2001-10-09 2003-04-25 Canon Inc 画像形成装置
JP2003255694A (ja) 2002-02-28 2003-09-10 Canon Inc 現像装置及び画像形成装置
US6973281B2 (en) 2002-04-26 2005-12-06 Canon Kabushiki Kaisha Developing apparatus with two developing chamber-rotatable member pairs
JP4136481B2 (ja) 2002-06-19 2008-08-20 キヤノン株式会社 現像装置及び画像形成装置
JP2005283685A (ja) 2004-03-26 2005-10-13 Canon Inc 画像形成装置
US7454149B2 (en) 2004-10-20 2008-11-18 Canon Kabushiki Kaisha Image forming apparatus
JP2006171100A (ja) 2004-12-13 2006-06-29 Canon Inc 画像形成装置
JP4608310B2 (ja) * 2004-12-27 2011-01-12 京セラミタ株式会社 現像装置およびこれを備えた画像形成装置
JP4860967B2 (ja) 2005-09-07 2012-01-25 キヤノン株式会社 現像装置
JP4498246B2 (ja) 2005-09-07 2010-07-07 キヤノン株式会社 現像装置
JP4819547B2 (ja) 2006-03-29 2011-11-24 キヤノン株式会社 現像装置
JP4854532B2 (ja) 2007-01-30 2012-01-18 キヤノン株式会社 現像装置
JP5136329B2 (ja) * 2008-09-26 2013-02-06 富士ゼロックス株式会社 マグネットロール
JP4963717B2 (ja) 2009-09-02 2012-06-27 キヤノン株式会社 現像装置
US8594541B2 (en) * 2011-10-21 2013-11-26 Eastman Kodak Company Method for transferring developer

Also Published As

Publication number Publication date
US8934819B2 (en) 2015-01-13
US20150139699A1 (en) 2015-05-21
US20120201577A1 (en) 2012-08-09
US9442428B2 (en) 2016-09-13
US9223252B2 (en) 2015-12-29
JP2012163584A (ja) 2012-08-30
US20160041505A1 (en) 2016-02-11

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