JP6405924B2 - 定着装置及び画像形成装置 - Google Patents
定着装置及び画像形成装置 Download PDFInfo
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- JP6405924B2 JP6405924B2 JP2014230853A JP2014230853A JP6405924B2 JP 6405924 B2 JP6405924 B2 JP 6405924B2 JP 2014230853 A JP2014230853 A JP 2014230853A JP 2014230853 A JP2014230853 A JP 2014230853A JP 6405924 B2 JP6405924 B2 JP 6405924B2
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- JP
- Japan
- Prior art keywords
- fixing
- fixing belt
- roller
- belt
- separation
- 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.)
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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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2028—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with means for handling the copy material in the fixing nip, e.g. introduction guides, stripping means
-
- 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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
-
- 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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
-
- 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
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
- G03G15/6573—Feeding path after the fixing point and up to the discharge tray or the finisher, e.g. special treatment of copy material to compensate for effects from the fixing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/1685—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the fixing unit
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2003—Structural features of the fixing device
- G03G2215/2016—Heating belt
- G03G2215/2025—Heating belt the fixing nip having a rotating belt support member opposing a pressure member
- G03G2215/2029—Heating belt the fixing nip having a rotating belt support member opposing a pressure member the belt further entrained around one or more stationary belt support members, the latter not being a cooling device
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2003—Structural features of the fixing device
- G03G2215/2016—Heating belt
- G03G2215/2035—Heating belt the fixing nip having a stationary belt support member opposing a pressure member
- G03G2215/2038—Heating belt the fixing nip having a stationary belt support member opposing a pressure member the belt further entrained around one or more rotating belt support members
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Description
12:定着ベルト
13:加圧ローラ
14:加熱ローラ
16:分離補助部材
17:摺動シート
20:固定板金
Claims (6)
- 表面に弾性層を有する定着ローラと、
内部に熱源を有する加熱ローラと、
前記定着ローラ及び前記加熱ローラに張架された無端状の定着ベルトと、
前記定着ローラに対向して配置され、前記定着ベルトを介して前記定着ローラに圧接して定着圧接部を形成する加圧ローラと、
前記定着ベルトの内部であって、前記定着圧接部の前記定着ベルトの回転方向下流に、前記定着圧接部の近傍における前記定着ベルトの曲率半径を小さくするように配置され、前記定着ベルトの内周に接触する面の長手方向中央部が長手方向端部に対して凸となるように、冷間圧延鋼板をプレス加工して形成される分離補助部材と、
を備える定着装置であって、
前記分離補助部材は、前記定着ベルトに接触する面に摺動抵抗を低下させる繊維状の摺動シートを備え、
前記摺動シートは、前記定着ベルトの回転方向の織密度がベルト回転方向直角方向の織密度より大きくなるように形成される定着装置。 - 前記分離補助部材は、
メッキ処理されている請求項1に記載の定着装置。 - 前記分離補助部材は、
前記定着ベルトの内周に接触する面の長手方向中央部が長手方向端部に対して0.1mm〜0.3mmの凸となるように形成される請求項1又は請求項2に記載の定着装置。 - 前記摺動シートは、
繊維が180℃以上の焼成処理がされた後に形成される請求項1乃至請求項3のいずれか1項に記載の定着装置。 - 前記分離補助部材は、
前記定着ベルトとの摺擦面の端部が前記摺擦面と対向する面の方向に曲げられている請求項1乃至請求項4のいずれか1項に記載の定着装置。 - 請求項1乃至請求項5のいずれか1項に記載の定着装置を備える画像形成装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014230853A JP6405924B2 (ja) | 2014-11-13 | 2014-11-13 | 定着装置及び画像形成装置 |
US14/924,206 US9939761B2 (en) | 2014-11-13 | 2015-10-27 | Fixing device and image forming apparatus that include a separation aid disposed downstream from the fixing nip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014230853A JP6405924B2 (ja) | 2014-11-13 | 2014-11-13 | 定着装置及び画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016095374A JP2016095374A (ja) | 2016-05-26 |
JP6405924B2 true JP6405924B2 (ja) | 2018-10-17 |
Family
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JP2014230853A Active JP6405924B2 (ja) | 2014-11-13 | 2014-11-13 | 定着装置及び画像形成装置 |
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US (1) | US9939761B2 (ja) |
JP (1) | JP6405924B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6593458B2 (ja) | 2016-01-15 | 2019-10-23 | 株式会社リコー | 分離部材、定着装置及び画像形成装置 |
JP6759614B2 (ja) | 2016-02-12 | 2020-09-23 | 株式会社リコー | 定着装置および画像形成装置 |
JP6701563B2 (ja) | 2016-03-18 | 2020-05-27 | 株式会社リコー | 定着装置および画像形成装置 |
US9996035B2 (en) | 2016-03-18 | 2018-06-12 | Ricoh Company, Ltd. | Fixing device and image forming apparatus with a movable presser which moves a fixing belt |
JP2017219797A (ja) | 2016-06-10 | 2017-12-14 | 株式会社リコー | 定着装置および画像形成装置 |
JP2018045161A (ja) | 2016-09-16 | 2018-03-22 | 株式会社リコー | 定着装置および画像形成装置 |
JP7151138B2 (ja) * | 2018-04-06 | 2022-10-12 | コニカミノルタ株式会社 | 定着装置および画像形成装置 |
JP2021140135A (ja) * | 2019-11-12 | 2021-09-16 | キヤノン株式会社 | 定着装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4748885B2 (ja) | 2001-06-21 | 2011-08-17 | 株式会社リコー | ベルト定着装置および画像形成装置 |
JP3985141B2 (ja) * | 2002-03-11 | 2007-10-03 | セイコーエプソン株式会社 | 定着装置 |
JP2005208222A (ja) * | 2004-01-21 | 2005-08-04 | Canon Inc | 現像装置、及び、プロセスカートリッジ、及び、電子写真画像形成装置 |
JP2007034019A (ja) * | 2005-07-28 | 2007-02-08 | Ntn Corp | シート状剥離部材 |
JP2008046549A (ja) * | 2006-08-21 | 2008-02-28 | Brother Ind Ltd | 画像形成装置 |
JP2008134356A (ja) | 2006-11-27 | 2008-06-12 | Fuji Xerox Co Ltd | 定着装置及び画像形成装置 |
JP2011095724A (ja) * | 2009-10-02 | 2011-05-12 | Fuji Xerox Co Ltd | 剥離装置及びこれを用いた定着装置、画像形成装置 |
US8408270B2 (en) * | 2009-10-07 | 2013-04-02 | Xerox Corporation | Apparatuses useful in printing, fixing devices and methods of stripping substrates from surfaces in apparatuses useful in printing |
JP2011123202A (ja) * | 2009-12-09 | 2011-06-23 | Fuji Xerox Co Ltd | 定着装置および画像形成装置 |
JP5446813B2 (ja) * | 2009-12-10 | 2014-03-19 | 富士ゼロックス株式会社 | 定着装置及び画像形成装置 |
JP2011191691A (ja) * | 2010-03-16 | 2011-09-29 | Nihon Gore Kk | 摺動部材および画像定着装置 |
JP2012128333A (ja) * | 2010-12-17 | 2012-07-05 | Ricoh Co Ltd | ベルト装置、定着装置及び画像形成装置 |
JP2014074879A (ja) | 2012-09-14 | 2014-04-24 | Ricoh Co Ltd | 定着装置及び画像形成装置 |
JP2014081399A (ja) * | 2012-10-12 | 2014-05-08 | Fuji Xerox Co Ltd | 摺動シート、定着装置および画像形成装置 |
JP6024538B2 (ja) * | 2013-03-15 | 2016-11-16 | 株式会社リコー | 定着装置、および、画像形成装置 |
JP2015069041A (ja) | 2013-09-30 | 2015-04-13 | 株式会社リコー | 定着装置および画像形成装置 |
JP2015180906A (ja) | 2014-03-07 | 2015-10-15 | 株式会社リコー | 定着装置及び画像形成装置 |
JP6311366B2 (ja) | 2014-03-11 | 2018-04-18 | 株式会社リコー | 定着装置、及び、画像形成装置 |
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2014
- 2014-11-13 JP JP2014230853A patent/JP6405924B2/ja active Active
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2015
- 2015-10-27 US US14/924,206 patent/US9939761B2/en active Active
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Publication number | Publication date |
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JP2016095374A (ja) | 2016-05-26 |
US20160139549A1 (en) | 2016-05-19 |
US9939761B2 (en) | 2018-04-10 |
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