FIXING DEVICE AND IMAGE FORMING APPARATUS

To provide a fixing device that can perform optimal fixation to a recording material regardless of a nip width.SOLUTION: A fixing device comprises: an endless belt that is arranged opposite to a rotating body; heating means that heats the endless belt; a pressing member that is arranged inside the e...

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Bibliographic Details
Main Author AMITA AKIYASU
Format Patent
LanguageEnglish
Japanese
Published 04.10.2023
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:To provide a fixing device that can perform optimal fixation to a recording material regardless of a nip width.SOLUTION: A fixing device comprises: an endless belt that is arranged opposite to a rotating body; heating means that heats the endless belt; a pressing member that is arranged inside the endless belt and forms, with the rotating body, a nip part for conveying a recording material with the endless belt therebetween; nip width changing means that changes a nip width of the nip part in a conveyance direction of the recording material; and pressing member position changing means that changes the position of the pressing member with respect to the nip width.SELECTED DRAWING: Figure 2 【課題】ニップ幅によらず、記録材に対して最適な定着を行うことが可能な定着装置を提供することができる。【解決手段】回転体と対向配置された無端ベルトと、前記無端ベルトを加熱する加熱手段と、前記無端ベルトの内側に配置され、前記無端ベルトを介して前記回転体と共に記録材を搬送するニップ部を形成する押圧部材と、前記記録材の搬送方向における前記ニップ部のニップ幅を変更するニップ幅変更手段と、前記ニップ幅に対する前記押圧部材の位置を変更する押圧部材位置変更手段と、を備える。【選択図】図２
Bibliography:Application Number: JP20220044904