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    • 4. 发明公开
    • Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same
    • 电子照相感光构件,使用相同的电子照相设备和设备单元。
    • EP0578094A3
    • 1994-12-14
    • EP93110293.3
    • 1993-06-28
    • CANON KABUSHIKI KAISHA
    • Ikezue, Tatsuya, c/o Canon Kabushiki Kaisha
    • G03G5/147G03G5/05
    • G03G5/14791G03G5/047G03G5/0592G03G5/14726G03G5/14795Y10T428/3154
    • The present invention provides an electrophotographic photosensitive member comprising a photosensitive layer formed on an electroconductive support, and a surface layer formed on the photosensitive layer, wherein said photosensitive layer contains a charge-generating substance, a charge-transporting substance, and a binder resin, and the surface layer contains a fluorine-atom-containing particulate resin, a charge-transporting substance, and a binder resin, wherein the binder resin in the surface layer and the binder resin in the photosensitive layer are composed of the same constitution components, the binder resin in the surface layer has a number-average molecular weight of from 50,000 to 160,000 and the binder resin in the photosensitive layer having a number-average molecular weight of from 10,000 to 50,000, and the number-average molecular weight of the binder resin in the surface layer is two or more times larger than that of the binder resin in the photosensitive layer.
    • 本发明提供电子照相感光构件包括形成在到导电载体上的光敏层,和形成在所述感光层上的表面层上,worin所述感光层包含电荷产生物质,电荷输送物质和粘结剂树脂, 和表面层含有含氟原子的颗粒状树脂,电荷输送物质和粘结剂树脂,worin在表面层中的粘合剂树脂并在光敏层中的粘合剂树脂是由相同的构成部件,该 在表面层中的粘合剂树脂具有50,000至160,000的数均分子量和在其具有10,000至50,000的数均分子量在感光层中的粘合剂树脂和粘合剂树脂的数均分子量 在表面层中比在所述感光层中的粘合剂树脂的两倍或更多倍。