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    • 30. 发明授权
    • Electrophotographic photoreceptor
    • 电子照相感光体
    • US5324606A
    • 1994-06-28
    • US977633
    • 1992-11-17
    • Masahiko HodumiMasanori MuraseSadao OkanoKoji BandoTakahiro SuzukiSeiji Ashiya
    • Masahiko HodumiMasanori MuraseSadao OkanoKoji BandoTakahiro SuzukiSeiji Ashiya
    • G03G5/047G03G5/06
    • G03G5/047G03G5/0614
    • An electrophotographic photoreceptor comprising a conductive substrate having thereon a photosensitive layer as the uppermost layer, in which the photosensitive layer contains two charge transporting materials different in ionization potential, a charge transporting material having a higher ionization potential is present in the amount equimolar to or in an amount less than the equimolar amount to the other charge transporting material having a lower ionization potential. A laminate type electrophotographic photoreceptor comprising a conductive substrate having thereon a charge generating layer and a charge transporting layer, in which the charge generating layer comprises a binder resin and a charge generating material dispersed therein, the charge transporting layer comprises a binder resin and at least two charge transporting materials including a first charge transporting material and a second charge transporting material, the amount of the first charge transporting material is at least 60 wt % based on the total amount of the charge transporting materials, the difference between the highest ionization potential and the lowest ionization potential the charge transporting materials is not more than 0.4 eV, provided that (1) the ionization potentials of all the charge transporting materials are lower than the ionization potential of the charge generating material, or (2) the ionization potential of the first charge transporting material is lower than the ionization potential of the charge generating material, and the ionization potential of the second charge transporting material is higher than the ionization potential of the charge generating material by at least 0.2 eV.
    • 一种电子照相感光体,包括其上具有感光层作为最上层的导电基底,其中感光层包含两种电离电位不同的电荷输送材料,具有较高离子化电位的电荷输送材料以等摩尔于或相等的量存在 相对于具有较低电离电位的其他电荷输送材料的等摩尔量的量。 一种层叠型电子照相感光体,其特征在于,具有导电性基板,其上具有电荷产生层和电荷输送层,其中所述电荷产生层包含粘合剂树脂和分散在其中的电荷产生材料,所述电荷输送层至少包含粘合剂树脂 包括第一电荷输送材料和第二电荷输送材料的两种电荷输送材料,第一电荷输送材料的量相对于电荷输送材料的总量为至少60重量%,最高电离电位与 电荷输送材料的电离电位最低不超过0.4eV,条件是(1)所有电荷输送材料的电离电位低于电荷产生材料的电离电位,或(2) 第一电荷输送材料低于 电荷产生材料的电离电位和第二电荷输送材料的电离电位比电荷产生材料的电离电位高至少0.2eV。