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    Switching detector
    1.
    发明授权
    Switching detector 失效
    切换检测器

    公开(公告)号：US3650617A

    公开(公告)日：1972-03-21

    申请号：US3650617D

    申请日：1971-02-01

    Applicant: XEROX CORP

    Inventor： BAXTER CARLTON J ,  VOLKERS S WILLIAM

    IPC: G03G15/00 ,  B65H7/06

    CPC classification number: G03G15/706

    Abstract: In an electrostatographic copying machine in which a developed image on the surface of a reproducing member is transferred to a transfer sheet in contact with said image, a device is provided for detecting the undesired continued presence of the transfer sheet on the reproducing surface after the image has been transferred, said device including a power source for providing a current flow between an electrode and the reproducing surface at a point beyond the image transfer area and a switching circuit coupled to the electrode and power source for indicating a change in the current flow caused by the presence of the transfer sheet between the electrode and the surface, thereby indicating continued contact of the transfer sheet with the reproducing surface. The switching detector includes a light sealed photodetector light source unit which electrically isolates the current flow portion from the detector portion. The switching circuit can be used to discontinue the operation of the machine.

    Abstract translation: 在其中将再现构件的表面上的显影图像转印到与所述图像接触的转印纸上的静电复印机中，提供了用于在图像之后的再现表面上检测转印纸不希望的继续存在的装置 所述设备包括用于在超过图像传送区域的点处在电极和再现表面之间提供电流的电源，以及耦合到电极和电源的切换电路，用于指示当前流量的变化 通过转印片在电极和表面之间的存在，从而指示转印片与再现表面的持续接触。 开关检测器包括光电检测器光源单元，其将电流流动部分与检测器部分电隔离。 开关电路可用于中断机器的操作。

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