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    • 5. 发明申请
    • CHARGING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
    • 充电会员,工艺盒和电子照相设备
    • WO2007100069A1
    • 2007-09-07
    • PCT/JP2007/053983
    • 2007-02-23
    • CANON KABUSHIKI KAISHAMAYUZUMI, HiroshiKURODA, Noriaki
    • MAYUZUMI, HiroshiKURODA, Noriaki
    • G03G15/02C09D183/06
    • G03G15/0233Y10T428/31663Y10T428/31667
    • A charging member is provided having a support, a conductive elastic layer formed on the support and a surface layer formed on the conductive elastic layer. The surface layer contains a polysiloxane having at least one of structures represented by the following formulas (1a1), (1a2), (1b1) and (1b2):, X representing one functional group selected from the group consisting of - O - , - NR 12 - and - COO - ; R 11 a hydrocarbon group; R 12 a hydrogen atom or a hydrocarbon group; and Z 21 a divalent organic group. Toners and external additives used in the toners clinging to the charging member surface can be minimized even through repeated use over a long period of time, thus the charging member can perform stable charging, and image reproduction even when used in the DC contact charging method.
    • 提供充电构件,其具有支撑件,形成在支撑件上的导电弹性层和形成在导电弹性层上的表面层。 表面层含有具有下述式(1a1),(1a2),(1b1),(1b2)所示的结构中的至少一种的聚硅氧烷:X表示选自-O - , - NR 12 - 和 - COO - ; R 11是烃基; R 12是氢原子或烃基; 和Z 21二价有机基团。 即使在长时间重复使用的情况下,也可以使紧贴充电构件表面的调色剂中使用的调色剂和外部添加剂最小化,因此即使在DC接触充电方法中使用时,充电构件也能够进行稳定的充电和图像再现。