Copier with leading edge image control
    1.
    发明授权
    Copier with leading edge image control 失效
    带边缘边缘图像控制的复印机

    公开(公告)号:US3834807A

    公开(公告)日:1974-09-10

    申请号:US44253374

    申请日:1974-02-14

    Applicant: IBM

    Abstract: An image producing process of a document copier is controlled by means detecting a low average intensity of reflected light during initial stages of scan of an original being copied to produce a low density or light copy adjacent the leading edge of the copy sheet passing through the machine thereby minimizing paper feed difficulties associated with the passage of copy having a dense leading edge through a contact fuser.

    Abstract translation: 文件复印机的图像产生过程通过在被复制的原稿的扫描的初始阶段检测反射光的平均强度的手段来控制,以产生邻近通过机器的复印纸的前端的低密度或光拷贝 从而最小化与具有致密前缘的复印件通过接触定影器相关联的进纸困难。

    Coated carrier particles with magnitude of triboelectric charge controlled and method of making same
    2.
    发明授权
    Coated carrier particles with magnitude of triboelectric charge controlled and method of making same 失效
    具有三电位电荷控制的涂覆载体颗粒及其制备方法

    公开(公告)号:US3725118A

    公开(公告)日:1973-04-03

    申请号:US3725118D

    申请日:1971-06-23

    Applicant: IBM

    CPC classification number: G03G9/1133 Y10T428/2991

    Abstract: AN ELECTROPHOTOGRAPHIC DEVELOPMENT CARRIER COMPRISING CORE PARTICLES COATED WITH A CARBOXYLATED POLYETHYLENE IONOMER. WHEN UTILIZED WITH APPROPRIATE ELECTROSCOPIC TONER MATERIALS, AND CARRIER, WITH IS COATED WITH A CARBOXYLATED POLYETHYLENE IONOMER IS EFFECTIVE IN PRODUCING A DESIRED POLARITY AND MAGNITUDE OF THE TRIBOELECTRIC CHARGE ON THE TONER PARTICLES. CONTROL OF THE POLARITY AND MAGNITUDE OF THE TRIBOELECTRIC CHARGE CHARACTERISTIC OF THE CARRIER, WHICH HAS ITS PARTICLES COATED WITH THE CARBOXYLATED POLYETHYLENE IONOMER IS OBTAINED BY CONTROLLING THE CURING TEMPERATURE OF THE CARBOXYLATED POLYETHLENE IONOMER.

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