ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that has suppressed the occurrence of seizing ghost occurring when a single image is continuously output and the occurrence of optical fatigue occurring when exposed to light.SOLUTION: An electrophotographic photoreceptor comprises a conductive substrate and a photosensitive layer that is arranged on the conductive support. The photosensitive layer contains at least one selected from the group consisting of a charge generating material, a butadiene-based charge transport material represented by a specific formula, a benzidine-based charge transport material represented by a specific formula, a hindered phenol-based antioxidant having a molecular weight of 300 or more, and a benzophenone-based ultraviolet absorber.SELECTED DRAWING: Figure 1 【課題】同一画像を連続して出力したときに生じる焼付きゴーストの発生と共に、光暴露されたときに生じる光疲労の発生を抑制した電子写真感光体を提供する。【解決手段】電子写真感光体は、導電性基体と、導電性基体上に配置された感光層と、を有する。そして、感光層は、電荷発生材料と、特定式で示されるブタジエン系電荷輸送材料と、特定式で示されるベンジジン系電荷輸送材料と、分子量３００以上のヒンダードフェノール系酸化防止剤およびベンゾフェノン系紫外線吸収剤よりなる群から選択される少なくとも１種と、を含む。【選択図】図１