ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS, AND GALLIUM PHTHALOCYANINE CRYSTAL

摘要

Provided are an electrophotographic photosensitive member capable of outputting an image having less image defects due to the ghost phenomenon not only under a normal-temperature and normal-humidity environment but also under a low-temperature and low-humidity environment as a particularly severe condition, and a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member. The electrophotographic photosensitive member is an electrophotographic photosensitive member including a photosensitive layer, in which the photosensitive layer includes a gallium phthalocyanine crystal in which a compound represented by the following formula (1) or the following formula (2) is contained.