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    • 5. 发明公开
    • Electrophotographic apparatus, process cartridge and electrophotosensitive member
    • Herstellungsverfahren eines elektrolichtempfindlichen元素
    • EP1262841A1
    • 2002-12-04
    • EP02007021.5
    • 2002-03-27
    • CANON KABUSHIKI KAISHA
    • Takizawa, KumikoOgawa, HidekiKitamura, Wataru
    • G03G21/06G03G5/06
    • G03G15/75G03G5/0696G03G2221/183
    • In an electrophotographic apparatus comprising an electrophotographic photosensitive member (1) around which a charging means (2), an exposure means (3), a developing means (4) and a transfer means (25) are provided in this order and not having any charge elimination means between the transfer means and the charging means, the electrophotographic photosensitive member comprises a support and provided thereon a charge generation layer containing a phthalocyanine compound and a charge transport layer, and has a light-area dark attenuation rate (A) and a dark-area dark attenuation rate (B) which are normalized with respect to the respective surface potentials immediately after second-round charging of the photosensitive member which satisfy the following expression (1): 1.0 ≤ normalized light-area dark attenuation rate A/normalized dark-area dark attenuation rate B ≤ 1.7
    • 在包括电子照相感光构件(1)的电子照相设备中,依次提供充电装置(2),曝光装置(3),显影装置(4)和转印装置(25),并且没有任何 电荷消除装置在转印装置和充电装置之间,电子照相感光构件包括支撑体并在其上设置含有酞菁化合物和电荷输送层的电荷产生层,并且具有光区暗衰减率(A)和 相对于满足以下表达式(1)的感光构件的第二次充电之后的各个表面电位被归一化的暗区暗衰减率(B): 1.0 ≤归一化光区暗衰减率A /归一化暗区暗衰减率B≤1.7