JP2010107914A5 - - Google Patents

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Publication number
JP2010107914A5
JP2010107914A5 JP2008282564A JP2008282564A JP2010107914A5 JP 2010107914 A5 JP2010107914 A5 JP 2010107914A5 JP 2008282564 A JP2008282564 A JP 2008282564A JP 2008282564 A JP2008282564 A JP 2008282564A JP 2010107914 A5 JP2010107914 A5 JP 2010107914A5
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Japan
Prior art keywords
heating
image
recording material
nip portion
pressure
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JP2008282564A
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JP2010107914A (en
JP5225028B2 (en
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Priority claimed from JP2008282564A external-priority patent/JP5225028B2/en
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Publication of JP2010107914A5 publication Critical patent/JP2010107914A5/ja
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Claims (8)

記録材上の未定着トナー画像を加熱部材と加圧部材により形成されるニップ部を通過することにより記録材上に固着画像として加熱定着する像加熱装置において、
前記加熱部材は、加熱源を内部に備え内面より平坦な面で加圧、加熱される可撓性のベルト状部材である第一の加熱部材と、熱ローラである第二の加熱部材と、を備え、
前記加圧部材は、前記第一の加熱部材と定着ニップ部を形成する第一の加圧部材と、前記第二の加熱部材と加熱ニップ部を形成する第二の加圧部材と、を備え、
前記加熱ニップ部は、記録材の画像形成面と反対方向に凹形状を有する加熱ニップ形状とされ、
前記第一の加熱部材の前記第一の加圧部材に対する前記定着ニップ部の単位面積当りの加圧力に対して、前記第二の加熱部材の前記第二の加圧部材に対する前記加熱ニップ部の単位面積当りにおける加圧力の方を高くすることができる、
ことを特徴とする像加熱装置。 In an image heating apparatus that heat-fixes an unfixed toner image on a recording material as a fixed image on the recording material by passing through a nip formed by a heating member and a pressure member.
The heating member includes a first heating member that is a flexible belt-like member that includes a heating source therein and is pressurized and heated on a surface flatter than an inner surface, and a second heating member that is a heat roller. With
The pressure member includes a first pressure member that forms a fixing nip portion with the first heating member, and a second pressure member that forms a heating nip portion with the second heating member. ,
The heating nip portion has a heating nip shape having a concave shape in a direction opposite to the image forming surface of the recording material,
The heating nip portion of the second heating member with respect to the second pressure member is applied to the pressing force per unit area of the fixing nip portion with respect to the first pressure member of the first heating member. The applied pressure per unit area can be increased.
An image heating apparatus. 前記熱ローラの外径が１６ｍｍ以下であることを特徴とする請求項１に記載の像加熱装置。   The image heating apparatus according to claim 1, wherein an outer diameter of the heat roller is 16 mm or less. 前記第一の加熱部材の加熱源がセラミックヒータであることを特徴とする請求項１又は２に記載の像加熱装置。   The image heating apparatus according to claim 1, wherein a heating source of the first heating member is a ceramic heater. 前記第二の加熱部材と前記第二の加圧部材の間の加圧力が可変であることを特徴とする請求項１〜３のいずれかの項に記載の像加熱装置。 The image heating apparatus according to any one of claims 1 to 3 , wherein a pressing force between the second heating member and the second pressing member is variable. 前記第二の加熱部材が前記第二の加圧部材から離間可能であることを特徴とする請求項４に記載の像加熱装置。   The image heating apparatus according to claim 4, wherein the second heating member is separable from the second pressure member. 前記第一の加圧部材と前記第二の加圧部材は、それぞれ異なる別個の加圧部材であるか、又は、一つの同じ加圧部材であることを特徴とする請求項１〜５のいずれかの項に記載の像加熱装置。   The said 1st pressurization member and said 2nd pressurization member are respectively different separate pressurization members, or are the same one pressurization member, The any one of Claims 1-5 characterized by the above-mentioned. An image heating apparatus according to any one of the above items. 記録材に未定着トナー画像を形成する画像形成手段と、この未定着トナー画像を記録材に熱定着させる定着装置とを備えた画像形成装置において、
前記定着装置は、請求項１〜６のいずれかの項に記載の像加熱装置であることを特徴とする画像形成装置。 In an image forming apparatus comprising: an image forming unit that forms an unfixed toner image on a recording material; and a fixing device that thermally fixes the unfixed toner image on the recording material.
The image forming apparatus according to claim 1, wherein the fixing device is an image heating device according to claim 1. 記録材に定着された画像を像加熱装置にて加熱することにより画像の光沢度を増大させる光沢増大装置において、
前記像加熱装置は、請求項１〜６のいずれかの項に記載の像加熱装置であることを特徴とする光沢増大装置。 In a gloss increasing device that increases the glossiness of an image by heating the image fixed on the recording material with an image heating device,
The gloss increasing device according to claim 1, wherein the image heating device is the image heating device according to claim 1.
JP2008282564A 2008-10-31 2008-10-31 Image heating apparatus, gloss increasing apparatus, and image forming apparatus Expired - Fee Related JP5225028B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008282564A JP5225028B2 (en) 2008-10-31 2008-10-31 Image heating apparatus, gloss increasing apparatus, and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008282564A JP5225028B2 (en) 2008-10-31 2008-10-31 Image heating apparatus, gloss increasing apparatus, and image forming apparatus

Publications (3)

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JP2010107914A JP2010107914A (en) 2010-05-13
JP2010107914A5 true JP2010107914A5 (en) 2011-12-15
JP5225028B2 JP5225028B2 (en) 2013-07-03

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JP2008282564A Expired - Fee Related JP5225028B2 (en) 2008-10-31 2008-10-31 Image heating apparatus, gloss increasing apparatus, and image forming apparatus

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
JP7180236B2 (en) 2018-09-25 2022-11-30 富士フイルムビジネスイノベーション株式会社 image forming device

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Publication number Priority date Publication date Assignee Title
JP5640473B2 (en) * 2010-06-04 2014-12-17 株式会社リコー Fixing apparatus and image forming apparatus
JP5950432B2 (en) * 2011-11-30 2016-07-13 信越ポリマー株式会社 Pressure roller, pressure roller manufacturing method, fixing device, and image forming apparatus
JP2016184085A (en) * 2015-03-26 2016-10-20 富士ゼロックス株式会社 Pressure member for fixation, fixing device, and image forming apparatus
JP6638469B2 (en) * 2016-02-29 2020-01-29 ブラザー工業株式会社 Guide member manufacturing method, end guide member manufacturing method, and fixing device
JP6668977B2 (en) * 2016-07-01 2020-03-18 富士ゼロックス株式会社 Image forming device
JP7255118B2 (en) * 2018-09-25 2023-04-11 富士フイルムビジネスイノベーション株式会社 image forming device

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JPH03264977A (en) * 1990-03-15 1991-11-26 Canon Inc Fixing device
JP2002351237A (en) * 2001-05-22 2002-12-06 Canon Inc Fixing device and image forming device
JP2002365967A (en) * 2001-06-12 2002-12-20 Canon Inc Imaging apparatus
JP2003167459A (en) * 2001-11-30 2003-06-13 Konica Corp Fixing device and image forming apparatus
JP2003233681A (en) * 2002-02-08 2003-08-22 Matsushita Electric Ind Co Ltd Program for supporting education of person in charge of maintenance/repair, computer readable recording medium with the program recorded thereon, transmission medium for transmitting the program and system for supporting education of person in charge of maintenance/ repair
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JP4816396B2 (en) * 2006-10-12 2011-11-16 富士ゼロックス株式会社 Image forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7180236B2 (en) 2018-09-25 2022-11-30 富士フイルムビジネスイノベーション株式会社 image forming device

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