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    • 3. 发明授权
    • Electrophotographic photoreceptor and production method thereof
    • 电子照相感光体及其制备方法
    • US06869740B2
    • 2005-03-22
    • US10307861
    • 2002-12-02
    • Yuriko ShindohHiroko IshibashiKazushige MoritaYoshihide Shimoda
    • Yuriko ShindohHiroko IshibashiKazushige MoritaYoshihide Shimoda
    • G03G5/00G03G5/047G03G5/05G03G5/06
    • G03G5/047G03G5/0614G03G5/0616G03G5/0629
    • An electrophotographic photoreceptor, in which the increase of VL is controlled below 15 V by controlling the content ratio M (ppm) of a charge transporting material CTM2 to a charge transporting material CTM1 within a specific range, wherein the ionization potential Ip(2) of the CTM2 is smaller than the ionization potential Ip(1) of the CTM1 in the constituent of the photosensitive layer, and thereby the electrophotographic photoreceptor has only a little reduction of image concentration. A method for producing an electrophotographic photoreceptor having ΔVL which is controlled below 15 V, wherein, in a case where the ionization potential of the charge transporting material used in the previous run of production is small, ΔVL can be set below 15 V by using, in the next production, a dip coating liquid, which comprises, as a constitutive material, a charge transporting material in which the difference between the ionization potential of the current material and that of the previous material is set below 0.25 eV.
    • 通过将特定范围内的电荷输送材料CTM2的电荷输送材料CTM2的含有比M(ppm)控制在特定范围内,将VL的增加控制在15V以下的电子照相感光体,其特征在于,电离电位Ip(2) CTM2小于感光层的成分中的CTM1的电离电位Ip(1),因此电子照相感光体仅有少量的图像浓度降低。 一种控制在15V以下的具有DeltaVL的电子照相感光体的制造方法,其特征在于,在前次生产中使用的电荷输送材料的电离电位小的情况下,通过使用ΔVV,将ΔVV设定为15V以下, 在下一次生产中,包含作为组成材料的电荷输送材料的浸涂液体,其中当前材料的电离电位与先前材料的电离电位之间的差设定在低于0.25eV。