An electrophotographic photoconductor is disclosed, which comprises an electroconductive support and a photoconductive layer formed thereon comprising a bisazo pigment having the formula (I) serving as a charge generating material: ##STR1## wherein Ar represents a residual group of a coupler represented by ArH selected from the group consisting of: an aromatic hydrocarbon compound having a hydroxyl group, a heterocyclic compound having a hydroxyl group, an aromatic hydrocarbon compound having an amino group, a heterocyclic compound having an amino group, an aromatic hydrocarbon compound having a hydroxyl group and an amino group, a heterocyclic compound having a hydroxyl group and an amino group, an aliphatic compound having an enolic ketone group, and an aromatic hydrocarbon compound having an enolic ketone group. Further, charge generating materials and novel bisazo pigments for use in the electrophotographic photoconductor are disclosed.
本发明揭示了一种电子照相感光体,包括一个电导支撑体和在其上形成的感光层,所述感光层包括一种具有式(I)的双偶氮色素作为电荷发生材料:##STR1##其中Ar表示由ArH表示的偶合剂的残基,所述偶合剂来自于以下群组:具有羟基的
芳香烃化合物,具有羟基的
杂环化合物,具有
氨基的
芳香烃化合物,具有
氨基的
杂环化合物,具有羟基和
氨基的
芳香烃化合物,具有羟基和
氨基的
杂环化合物,具有烯酮基的脂肪族化合物和具有烯酮基的
芳香烃化合物。此外,本发明还揭示了用于电子照相感光体的电荷发生材料和新型双偶氮色素。