Fixing mechanism



【課題】記録用紙の加熱ローラへの巻きつきを防止できる定着機構を提供すること。 【解決手段】定着機構は、互いに圧接しながら回転する1対の加熱ローラと加圧ローラを備え、加熱ローラと加圧ローラはそれらの周面に弾性層がそれぞれ設けられて搬送されてくる記録用紙を挟持しながら加熱するための所定幅のニップ部を形成し、加熱ローラの弾性層と加圧ローラの弾性層は加圧ローラの表面硬度が加熱ローラの表面硬度よりも高くなるようにそれぞれ硬度が設定される。 【選択図】図2
PROBLEM TO BE SOLVED: To provide a fixing mechanism which is capable of preventing a recording paper from winding around a heat roller. SOLUTION: The fixing mechanism includes a pair of a heat roller and a pressure roller rotating in press contact with each other, and the heat roller and the pressure roller have elastic layers on circumferential surfaces thereof and forms a nip part having a prescribed width where a carried recording paper is heated while being held between them, and a hardness of the elastic layer and that of the heat roller are so set that a surface hardness of the pressure roller is higher than that of the heat roller. COPYRIGHT: (C)2007,JPO&INPIT




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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-2003263056-ASeptember 19, 2003Minolta Co Ltd, ミノルタ株式会社定着装置

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