定着装置及び画像形成装置

Fixing device and image forming apparatus

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing device in which warm-up time and first printing time are reduced, which prevents fixing failure, even when a high-speed operation of the device is performed and also prevents a heat member from being deformed due to spring back, or the like, even when a heat member is thinned, and to provide an image forming apparatus. <P>SOLUTION: The fixing device includes a fixed member 26, that is disposed in pressure contact with a pressure rotating body 31 via a belt member 21, thereby forming a nip; the heating member 22 having an opening 22a at a position opposite to the pressure rotating body 31; and holding members 29A and 29B holding the shape of the heating member 22 so as to prevent deformation of the heating member 22. <P>COPYRIGHT: (C)2011,JPO&INPIT
【課題】ウォームアップ時間やファーストプリント時間が短く、装置を高速化した場合であっても定着不良が生じることなく、加熱部材を薄肉化した場合であっても加熱部材がスプリングバック等により変形することのない、定着装置及び画像形成装置を提供する。 【解決手段】ベルト部材21を介して加圧回転体31に圧接してニップ部を形成する固定部材26と、加圧回転体31に対向する位置に開口部22aを有する加熱部材22と、加熱部材22が変形しないように加熱部材22の形状を保持する保持部材29A、29Bと、を備える。 【選択図】図4

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    JP-2012145715-AAugust 02, 2012Ricoh Co Ltd, 株式会社リコー定着装置及び画像形成装置
    JP-2013073198-AApril 22, 2013Brother Ind Ltd, ブラザー工業株式会社定着装置
    JP-2013195858-ASeptember 30, 2013Ricoh Co Ltd, 株式会社リコー定着装置、及び、画像形成装置
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