JP6350333B2 - 現像装置及びそれを備えた画像形成装置、並びに現像装置に用いる現像剤担持体 - Google Patents
現像装置及びそれを備えた画像形成装置、並びに現像装置に用いる現像剤担持体 Download PDFInfo
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- JP6350333B2 JP6350333B2 JP2015030254A JP2015030254A JP6350333B2 JP 6350333 B2 JP6350333 B2 JP 6350333B2 JP 2015030254 A JP2015030254 A JP 2015030254A JP 2015030254 A JP2015030254 A JP 2015030254A JP 6350333 B2 JP6350333 B2 JP 6350333B2
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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
-
- 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
- G03G15/0914—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with a one-component toner
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
9 画像形成部
20 ハウジング(筐体)
23 第1攪拌スクリュー
24 第2攪拌スクリュー
25 現像ローラー(現像剤担持体)
27 固定マグネット体(磁石部材)
27a S1極
27b N1極(主極)
27c S2極(規制極)
27d N2極
27e シャフト
29 規制ブレード
33a、33b 磁気シール部材
35 ブレード側磁石
40 磁気ローラー(現像剤担持体)
41 現像ローラー(トナー担持体)
100 画像形成装置
Claims (2)
- 磁性を有する現像剤を収納する筐体と、
該筐体に回転可能に支持され、外周面に磁性トナーからなる磁性一成分現像剤を担持する現像剤担持体と、
該現像剤担持体の内部に固定されるシャフトと、該シャフトの周方向に固定される複数の現像剤担持体側磁極とを有する磁石部材と、
前記現像剤担持体の外周面に所定の間隔を隔てて対向配置される磁性材料で形成された規制ブレードと、
を備え、像担持体上に形成された静電潜像を現像する現像装置において、
前記磁石部材は、前記現像剤担持体側磁極のうち偶数個がプラスチックマグネットで形成され、他の磁極が偶数個のラバーマグネットで形成されており、前記現像剤担持体側磁極のうち前記現像剤担持体と前記規制ブレードとの近接部に配置される規制極と、前記シャフトを挟んで前記規制極に対向配置される磁極とを同一形状の前記プラスチックマグネットで形成し、前記シャフトに対し軸対称に固定するとともに、前記現像剤担持体側磁極のうち前記現像剤担持体と前記像担持体との近接部に配置される主極と、前記シャフトを挟んで前記主極に対向配置される磁極とを同一形状の前記ラバーマグネットで形成し、前記シャフトに対し軸対称に固定したことを特徴とする現像装置。 - 請求項1に記載の現像装置を備えた画像形成装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015030254A JP6350333B2 (ja) | 2015-02-19 | 2015-02-19 | 現像装置及びそれを備えた画像形成装置、並びに現像装置に用いる現像剤担持体 |
US14/964,077 US9400453B1 (en) | 2015-02-19 | 2015-12-09 | Developing device and image forming apparatus therewith, and developer carrying member therein |
CN201510920637.7A CN105911834B (zh) | 2015-02-19 | 2015-12-11 | 显影装置、图像形成装置和用于显影装置的显影剂承载体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015030254A JP6350333B2 (ja) | 2015-02-19 | 2015-02-19 | 現像装置及びそれを備えた画像形成装置、並びに現像装置に用いる現像剤担持体 |
Publications (2)
Publication Number | Publication Date |
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JP2016151728A JP2016151728A (ja) | 2016-08-22 |
JP6350333B2 true JP6350333B2 (ja) | 2018-07-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2015030254A Expired - Fee Related JP6350333B2 (ja) | 2015-02-19 | 2015-02-19 | 現像装置及びそれを備えた画像形成装置、並びに現像装置に用いる現像剤担持体 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9400453B1 (ja) |
JP (1) | JP6350333B2 (ja) |
CN (1) | CN105911834B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107065478A (zh) * | 2017-05-13 | 2017-08-18 | 中山市奔码打印耗材有限公司 | 一种显影装置 |
CN107608190B (zh) * | 2017-10-24 | 2020-01-14 | 贵州云侠科技有限公司 | 一种激光硒鼓清理方法 |
JP7068007B2 (ja) * | 2018-04-03 | 2022-05-16 | シャープ株式会社 | 現像装置およびそれを備える画像形成装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4557582A (en) * | 1982-04-02 | 1985-12-10 | Canon Kabushiki Kaisha | Magnet roll |
JPH07230217A (ja) * | 1994-02-17 | 1995-08-29 | Canon Inc | 現像スリーブアセンブリ及び現像装置 |
JPH09211989A (ja) * | 1996-02-05 | 1997-08-15 | Canon Inc | 多色画像形成装置 |
JPH1039636A (ja) * | 1996-07-24 | 1998-02-13 | Hitachi Metals Ltd | マグネットロール |
US6125255A (en) * | 1996-09-23 | 2000-09-26 | Xerox Corporation | Magnet assembly with inserts and method of manufacturing |
JPH11161029A (ja) * | 1997-09-26 | 1999-06-18 | Ricoh Co Ltd | 現像ローラ及び画像形成装置 |
JP4071371B2 (ja) * | 1997-09-26 | 2008-04-02 | 株式会社リコー | マグネット部材、該マグネット部材の製造方法、マグネット構造体、マグネット装置、現像ローラ、並びに現像装置 |
JP4222454B2 (ja) | 1998-08-31 | 2009-02-12 | Tdk株式会社 | マグネットロール |
JP2005277004A (ja) * | 2004-03-24 | 2005-10-06 | Tdk Corp | マグネットロール |
JP2007334007A (ja) * | 2006-06-15 | 2007-12-27 | Konica Minolta Business Technologies Inc | 現像装置及び画像形成装置 |
JP2008040210A (ja) * | 2006-08-08 | 2008-02-21 | Konica Minolta Business Technologies Inc | 画像形成方法 |
JP2009175496A (ja) * | 2008-01-25 | 2009-08-06 | Konica Minolta Business Technologies Inc | 現像装置および画像形成装置 |
-
2015
- 2015-02-19 JP JP2015030254A patent/JP6350333B2/ja not_active Expired - Fee Related
- 2015-12-09 US US14/964,077 patent/US9400453B1/en active Active
- 2015-12-11 CN CN201510920637.7A patent/CN105911834B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN105911834A (zh) | 2016-08-31 |
US9400453B1 (en) | 2016-07-26 |
JP2016151728A (ja) | 2016-08-22 |
CN105911834B (zh) | 2019-10-11 |
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