CHARGING DEVICE AND IMAGE FORMING APPARATUS

    公开(公告)号:US20170205725A1

    公开(公告)日:2017-07-20

    申请号:US15242878

    申请日:2016-08-22

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0258 G03G15/0291

    摘要: A charging device includes a first cleaning member, a first electrode, a second cleaning member, a second electrode, and a movable body. The first cleaning member moves in one direction. The first electrode is cleaned by the first cleaning member moving in the one direction. The second cleaning member moves in the one direction together with the first cleaning member and moves so that a downstream end portion thereof, which is located downstream in the one direction, serves as a leading portion and an upstream end portion thereof comes after the downstream end portion. The second electrode includes a first region and a second region. The first region is cleaned by the second cleaning member moving in the one direction. The second region is located downstream in comparison with the first region in the one direction.

    CHARGING DEVICE AND IMAGE FORMING APPARATUS

    公开(公告)号:US20170205729A1

    公开(公告)日:2017-07-20

    申请号:US15241809

    申请日:2016-08-19

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0291 G03G15/0258

    摘要: A charging device includes: an electrode; a cleaning member that cleans the electrode; a moving body that moves along the electrode, the cleaning member that is attached to the moving body; and a rotation member that is disposed along the electrode and that includes a spiral protrusion on an outer circumferential surface thereof to move the moving body, the rotation member that is rotated in a circumferential direction. A plurality of kinds of pitch intervals of the protrusion are provided on at least a central portion of the rotation member in a longitudinal direction.

    CHARGING DEVICE AND IMAGE FORMING APPARATUS

    公开(公告)号:US20170205726A1

    公开(公告)日:2017-07-20

    申请号:US15243240

    申请日:2016-08-22

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0258 G03G15/0291

    摘要: A charging device includes an electrode, a cleaning member that moves along the electrode and cleans the electrode, a rotating member that is disposed along the electrode, includes a spiral protruding portion on an outer circumferential surface thereof, and circumferentially rotates, and a movable member to which the cleaning member is attached. The movable member includes a first through hole through which the rotating member passes, a first pressed portion that is provided on an inner circumferential surface of the first through hole and pressed by the protruding portion of the rotating member, and a second pressed portion that is disposed at a different position from a position of the first pressed portion in an axial direction of the rotating member and that is disposed such that one or more turns of the protruding portion are positioned between the second pressed portion and the first pressed portion.