JP2007041288A5 - - Google Patents

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Publication number
JP2007041288A5
JP2007041288A5 JP2005225368A JP2005225368A JP2007041288A5 JP 2007041288 A5 JP2007041288 A5 JP 2007041288A5 JP 2005225368 A JP2005225368 A JP 2005225368A JP 2005225368 A JP2005225368 A JP 2005225368A JP 2007041288 A5 JP2007041288 A5 JP 2007041288A5
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JP
Japan
Prior art keywords
recording material
conveyance direction
fixing film
material conveyance
heater
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.)
Granted
Application number
JP2005225368A
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Japanese (ja)
Other versions
JP4981276B2 (en
JP2007041288A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2005225368A priority Critical patent/JP4981276B2/en
Priority claimed from JP2005225368A external-priority patent/JP4981276B2/en
Publication of JP2007041288A publication Critical patent/JP2007041288A/en
Publication of JP2007041288A5 publication Critical patent/JP2007041288A5/ja
Application granted granted Critical
Publication of JP4981276B2 publication Critical patent/JP4981276B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Claims (2)

筒状の定着フィルムと、前記定着フィルムの内面に接触するヒータと、前記ヒータを保持するホルダと、前記定着フィルムの外面に接触しており前記ヒータ及び前記ホルダと共に前記定着フィルムを挟み込む加圧ローラと、を有し、画像を担持する記録材を前記定着フィルムと前記加圧ローラの間で挟持搬送して記録材上の画像を記録材に定着する定着装置において、
前記定着フィルムと前記加圧ローラの接触領域の記録材搬送方向上流側の境界を構成するラインの前記記録材搬送方向に対して直交する方向の両端部よりも中央部が前記記録材搬送方向上流側に膨らむように、前記ヒータよりも前記記録材搬送方向上流側に位置する前記ホルダの一部分と前記加圧ローラとが前記定着フィルムを挟み込んでいることを特徴とする定着装置。 A cylindrical fixing film, a heater that contacts the inner surface of the fixing film, a holder that holds the heater, and a pressure roller that contacts the outer surface of the fixing film and sandwiches the fixing film together with the heater and the holder If has, in the image fixing apparatus for fixing the recording material an image on a recording material nipped and conveyed between the pressure roller and the recording material and the fixing film carrying a
The central part is upstream of the recording material conveyance direction in the direction perpendicular to the recording material conveyance direction of the line constituting the upstream side boundary of the contact area between the fixing film and the pressure roller in the recording material conveyance direction. A fixing device , wherein the fixing film is sandwiched between a part of the holder and the pressure roller located upstream of the heater in the recording material conveyance direction so as to bulge to the side . 前記接触領域の記録材搬送方向下流側の境界を構成するラインの前記記録材搬送方向に対して直交する方向の両端部よりも中央部が前記記録材搬送方向上流側に凹むように、前記ヒータよりも前記記録材搬送方向下流側に位置する前記ホルダの一部分と前記加圧ローラとが前記定着フィルムを挟み込んでいることを特徴とする請求項１に記載の定着装置。 The heater is configured such that a center portion of the line constituting the boundary of the contact area on the downstream side in the recording material conveyance direction in the direction perpendicular to the recording material conveyance direction is recessed upstream in the recording material conveyance direction. 2. The fixing device according to claim 1, wherein a part of the holder and the pressure roller located further downstream in the recording material conveyance direction sandwich the fixing film .
JP2005225368A 2005-08-03 2005-08-03 Fixing device Expired - Fee Related JP4981276B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005225368A JP4981276B2 (en) 2005-08-03 2005-08-03 Fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005225368A JP4981276B2 (en) 2005-08-03 2005-08-03 Fixing device

Publications (3)

Publication Number Publication Date
JP2007041288A JP2007041288A (en) 2007-02-15
JP2007041288A5 true JP2007041288A5 (en) 2008-09-18
JP4981276B2 JP4981276B2 (en) 2012-07-18

Family

ID=37799330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005225368A Expired - Fee Related JP4981276B2 (en) 2005-08-03 2005-08-03 Fixing device

Country Status (1)

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JP (1) JP4981276B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6149468B2 (en) * 2013-03-29 2017-06-21 ブラザー工業株式会社 Fixing device
JP6171563B2 (en) * 2013-05-24 2017-08-02 富士ゼロックス株式会社 Fixing apparatus and image forming apparatus
JP6632291B2 (en) * 2015-09-25 2020-01-22 キヤノン株式会社 Image heating device
JP7052443B2 (en) 2018-03-15 2022-04-12 株式会社リコー Fixing device and image forming device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03242671A (en) * 1990-02-20 1991-10-29 Canon Inc Heating device
JP3817482B2 (en) * 2002-02-01 2006-09-06 キヤノン株式会社 Heating apparatus and image forming apparatus
JP2005050693A (en) * 2003-07-29 2005-02-24 Canon Inc Heating device and image forming device

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