Sheet conveying device and image forming apparatus
    21.
    发明申请
    Sheet conveying device and image forming apparatus 有权
    片材输送装置和成像装置

    公开(公告)号:US20110204557A1

    公开(公告)日:2011-08-25

    申请号:US12929493

    申请日:2011-01-28

    IPC分类号: B65H3/18

    摘要: A sheet conveying device includes an attractive separation unit and a contacting and separating device. The attractive separation unit includes an attraction belt arranged to face the upper surface of a sheet stack, two rollers that stretch the attraction belt taut, with the upstream-side roller in the sheet conveying direction supported to be movable in substantially upward and downward directions within a predetermined range with respect to the upper surface of the sheet stack, and a charging device which charges a surface of the attraction belt. The contacting and separating device swings the attractive separation unit to make the attraction belt come into contact with and separate from the sheet stack, with a fulcrum of the swing of the attractive separation unit set to a position upstream in the sheet conveying direction of the upstream-side roller in the sheet conveying direction.

    摘要翻译: 片材输送装置包括有吸引力的分离单元和接触和分离装置。 有吸引力的分离单元包括布置成面对片材堆叠的上表面的吸引带,使得吸引带拉紧的两个辊,其中片材输送方向上的上游侧辊被支撑成可在大致向上和向下方向上移动 相对于片材堆叠的上表面的预定范围,以及对吸引带的表面充电的充电装置。 接触和分离装置使吸引分离单元摆动以使吸引带与片材堆叠接触和分离,吸引分离单元的摆动的支点设置在上游的片材输送方向上游的位置 在辊子的输送方向上。

    Sheet feeding device and image forming apparatus incorporating same
    22.
    发明申请
    Sheet feeding device and image forming apparatus incorporating same 有权
    纸张馈送装置和包含其的图像形成装置

    公开(公告)号:US20110127711A1

    公开(公告)日:2011-06-02

    申请号:US12926515

    申请日:2010-11-23

    IPC分类号: B65H3/18 B65H5/02

    摘要: A sheet feeding device includes a sheet carrying unit, an attraction separation device electrostatically attracting and separating an uppermost sheet from a sheet stack and including multiple rollers, an endless dielectric belt stretched over the multiple rollers, and an elastic member provided inside a loop of the belt to cause the endless dielectric belt to contact the uppermost sheet, a sheet conveying device, and a lifting and lowering device. The lifting and lowering device lifts the sheet stack to a lift position at which the uppermost sheet contacts with the attraction separation device, and the attraction separation device stands by for a predetermined time to attract the uppermost sheet and starts to convey the uppermost sheet after the predetermined time elapses in a state in which the sheet stack remains at the lift position.

    摘要翻译: 片材进给装置包括片材传送单元,吸引分离装置,静电吸引和分离最上面的片材与片材堆叠并且包括多个辊子;拉伸在多个辊子上的环形介质带;以及弹性构件,其设置在 带,以使环形绝缘带接触最上面的片材,片材输送装置和升降装置。 提升和升降装置将纸张堆叠提升到最上面的纸张与吸引分离装置接触的提升位置,并且吸引分离装置待机预定时间以吸引最上面的纸张,并开始传送最上面的纸张 在片叠保持在提升位置的状态下经过预定时间。