JP7818970B2 - 現像装置 - Google Patents

現像装置

Info

Publication number
JP7818970B2
JP7818970B2 JP2022011050A JP2022011050A JP7818970B2 JP 7818970 B2 JP7818970 B2 JP 7818970B2 JP 2022011050 A JP2022011050 A JP 2022011050A JP 2022011050 A JP2022011050 A JP 2022011050A JP 7818970 B2 JP7818970 B2 JP 7818970B2
Authority
JP
Japan
Prior art keywords
supply roller
magnetic pole
flux density
outer peripheral
peripheral surface
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.)
Active
Application number
JP2022011050A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023109503A5 (https=
JP2023109503A (ja
Inventor
智博 田中
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 JP2022011050A priority Critical patent/JP7818970B2/ja
Priority to US18/093,888 priority patent/US11846898B2/en
Publication of JP2023109503A publication Critical patent/JP2023109503A/ja
Priority to US18/388,309 priority patent/US12197147B2/en
Publication of JP2023109503A5 publication Critical patent/JP2023109503A5/ja
Application granted granted Critical
Publication of JP7818970B2 publication Critical patent/JP7818970B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/0121—Details of unit for developing
    • 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
    • G03G15/0806—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
    • G03G15/0818—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 structure of the donor member, e.g. surface properties
    • 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
    • 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
    • G03G15/0921—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
    • G03G15/095—Removing excess solid developer, e.g. fog preventing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
JP2022011050A 2022-01-27 2022-01-27 現像装置 Active JP7818970B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2022011050A JP7818970B2 (ja) 2022-01-27 2022-01-27 現像装置
US18/093,888 US11846898B2 (en) 2022-01-27 2023-01-06 Developing device
US18/388,309 US12197147B2 (en) 2022-01-27 2023-11-09 Developing device having enhanced carrier control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022011050A JP7818970B2 (ja) 2022-01-27 2022-01-27 現像装置

Publications (3)

Publication Number Publication Date
JP2023109503A JP2023109503A (ja) 2023-08-08
JP2023109503A5 JP2023109503A5 (https=) 2024-12-23
JP7818970B2 true JP7818970B2 (ja) 2026-02-24

Family

ID=87522636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022011050A Active JP7818970B2 (ja) 2022-01-27 2022-01-27 現像装置

Country Status (2)

Country Link
US (2) US11846898B2 (https=)
JP (1) JP7818970B2 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7818970B2 (ja) * 2022-01-27 2026-02-24 キヤノン株式会社 現像装置
US12339598B2 (en) 2023-02-13 2025-06-24 Canon Kabushiki Kaisha Developing device having spaced rotatable members and a developer guide portion
JP2025074867A (ja) 2023-10-30 2025-05-14 キヤノン株式会社 現像装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070122209A1 (en) 2005-11-28 2007-05-31 Samsung Electronics Co., Ltd. Hybrid type image forming apparatus
JP2009198582A (ja) 2008-02-19 2009-09-03 Kyocera Mita Corp 現像装置と該現像装置を用いたタンデム型画像形成装置
JP2010243893A (ja) 2009-04-08 2010-10-28 Sharp Corp 現像装置及びこれを用いる画像形成装置
CN107561885A (zh) 2016-06-30 2018-01-09 淮安欣展高分子科技有限公司 一种带电磁铁的感光鼓

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4987524B2 (ja) 2007-03-16 2012-07-25 京セラドキュメントソリューションズ株式会社 現像装置及びそれを備えた画像形成装置
JP4977519B2 (ja) 2007-04-12 2012-07-18 京セラドキュメントソリューションズ株式会社 現像装置及びそれを備えた画像形成装置
JP2014153608A (ja) 2013-02-12 2014-08-25 Kyocera Document Solutions Inc 現像装置及びそれを備えた画像形成装置
JP6230448B2 (ja) 2014-03-05 2017-11-15 キヤノン株式会社 現像装置
US10175608B2 (en) * 2016-03-17 2019-01-08 Kyocera Document Solutions Inc. Developing device and image forming apparatus provided with same
JP6428686B2 (ja) * 2016-03-17 2018-11-28 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
JP2018105981A (ja) * 2016-12-26 2018-07-05 京セラドキュメントソリューションズ株式会社 画像形成装置
JP2020030347A (ja) 2018-08-23 2020-02-27 キヤノン株式会社 現像装置
JP7818970B2 (ja) * 2022-01-27 2026-02-24 キヤノン株式会社 現像装置
JP7840701B2 (ja) 2022-01-27 2026-04-06 キヤノン株式会社 現像装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070122209A1 (en) 2005-11-28 2007-05-31 Samsung Electronics Co., Ltd. Hybrid type image forming apparatus
JP2009198582A (ja) 2008-02-19 2009-09-03 Kyocera Mita Corp 現像装置と該現像装置を用いたタンデム型画像形成装置
JP2010243893A (ja) 2009-04-08 2010-10-28 Sharp Corp 現像装置及びこれを用いる画像形成装置
CN107561885A (zh) 2016-06-30 2018-01-09 淮安欣展高分子科技有限公司 一种带电磁铁的感光鼓

Also Published As

Publication number Publication date
US20230288843A1 (en) 2023-09-14
US20240069470A1 (en) 2024-02-29
US12197147B2 (en) 2025-01-14
US11846898B2 (en) 2023-12-19
JP2023109503A (ja) 2023-08-08

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