Fixing device improved in offset-prevention
    2.
    发明授权
    Fixing device improved in offset-prevention 有权
    固定装置改进了防偏移

    公开(公告)号:US06400923B1

    公开(公告)日:2002-06-04

    申请号:US09625976

    申请日:2000-07-26

    IPC分类号: G03G1520

    CPC分类号: G03G15/2053

    摘要: A fixing device in an image formation apparatus has a heating roller and a backup roller. These rollers are each coated with single silicone rubber layers around the respective peripheries of their core bars. This silicone rubber has a volume resistance value of 1013 &OHgr;·cm or more. The heating roller is charged with electricity of the same polarity as the polarity of toner particles due to frictional electrification caused at the time of feeding of a recording medium. The heating and the backup roller are polarized reverse to the polarity of the recording medium. A quantity of charged electricity on the backup roller is made larger than that on the heating roller. This permits the image formation apparatus to prevent offset from occurring at the time of fixing a toner image onto the recording medium to cope with various types of recording media.

    摘要翻译: 图像形成装置中的定影装置具有加热辊和支撑辊。 这些辊子各自在其芯棒的相应周边周围涂覆有单个硅橡胶层。 该硅橡胶的体积电阻值为1013ΩEG·cm以上。 由于在记录介质的供给时引起的摩擦带电,对加热辊进行与调色剂颗粒的极性相同极性的电荷的充电。 加热和支撑辊的极性与记录介质的极性相反。 支撑辊上的充电量大于加热辊上的充电量。 这允许图像形成装置防止在将调色剂图像定影到记录介质上时发生偏移以处理各种类型的记录介质。

    Electro-photographic apparatus
    7.
    发明申请
    Electro-photographic apparatus 有权
    电子照相设备

    公开(公告)号:US20050254866A1

    公开(公告)日:2005-11-17

    申请号:US11127146

    申请日:2005-05-12

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2064 G03G15/2042

    摘要: An electro-photographic apparatus for conducting printing includes a fixing member fixing an unfixed toner image on a surface of a recording medium onto the recording medium. The fixing member includes a heating roller and a pressurizing member, and a mounting member on which the pressurizing member is mounted. The pressurizing member is supported by the mounting member in a substantially center part in a longitudinal direction of the pressurizing member.

    摘要翻译: 用于进行印刷的电子照相设备包括将记录介质表面上的未定影调色剂图像定影到记录介质上的固定构件。 固定构件包括加热辊和加压构件以及安装有加压构件的安装构件。 加压构件由加压构件沿加压构件的长度方向的大致中央部支承。