Electrophotographic apparatus utilizing a hollow roller changing
mechanism
    1.
    发明授权
    Electrophotographic apparatus utilizing a hollow roller changing mechanism 失效
    使用中空辊更换机构的电子照相设备

    公开(公告)号:US5483323A

    公开(公告)日:1996-01-09

    申请号:US251314

    申请日:1994-05-31

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0216

    摘要: In an electrophotographic apparatus using a charging apparatus for contact charging, the charging apparatus includes a flexible and hollow electrically conducting roller, and an electrically conducting brush roller which is provided in the hollow roller in concentric therewith and to rotate relative thereto, wherein a charging voltage is applied to the hollow roller via the brush roller, and the photosensitive material is electrically charged by rotating the hollow roller by bringing it into physical contact with the photosensitive material, and the hollow roller is brought at its both end portions into press-contact with the end portions on the surface of the photosensitive material and is rotated by being driven by the photosensitive material. In this apparatus, the hollow roller that comes into contact with the surface of the photosensitive material is driven at substantially the same speed as the photosensitive material, whereby slipping and wear are effectively prevented from occurring on the surface of the photosensitive material, durability of the photosensitive material is not lost, the hollow roller that is subject to be easily deformed is effectively prevented from being twisted, enabling the electric charging to be carried out stably and uniformly For extended periods of time.

    摘要翻译: 在使用充电装置进行接触充电的电子照相装置中,充电装置包括柔性且中空的导电辊,以及导电刷辊,其与中心辊同心地设置并且相对于其旋转,其中充电电压 通过刷辊施加到中空辊,并且通过使中空辊与感光材料物理接触来旋转中空辊而使感光材料带电,并且中空辊在其两端被带入与 感光材料表面上的端部,并被感光材料驱动旋转。 在该装置中,与感光材料的表面接触的中空辊以与感光材料基本相同的速度被驱动,从而有效地防止在感光材料的表面上发生滑动和磨损,耐久性 感光材料不会损失,有效地防止容易变形的中空辊扭曲,使得充电能够稳定且均匀地进行延长的时间。