An electrophotographic photosensitive member, process for producing an electrophotographic photosensitive element, a process cartridge and an electrophotographic apparatus, and a solid solution and a process for manufacturing a solid solution

摘要

The present invention provides an electrophotographic photosensitive member, which not only under a normal temperature - and normal moisture environment, but also under a low temperature - and low humidity environment as a particularly hard conditions, images with reduced because of an image defects ghosting (ghosting) can be discharged and a manufacturing method thereof; and a process cartridge and an electrophotographic apparatus, which in each case have the electrophotographic detectable element. Accordingly, the electrophotographic sensitive element of the present invention, which a support and a photosensitive layer on the carrier, the photosensitive layer having a solid solution of hydroxygallium and a by the following formula (1) or formula (1) ''shown connection, wherein the solid solution of peaks at bragg - angles 2θ of 7,4° ± 0,3° and 28,3° ± 0,3° in a cukα - characteristic has means of x-ray diffraction.