| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor suppressing dark decay, and a process cartridge and an electrophotographic device having the electrophotographic photoreceptor.SOLUTION: A photosensitive layer or a charge generating layer of the electrophotographic photoreceptor includes a specific diamine compound such as 1,2-diamino ethane and 1,3-diamino propane, and gallium phthalocyanine. The content of the specific diamine compound in the photosensitive layer or the charge generating layer is 10 ppm or more and 1000 ppm or less (a mass ratio) with respect to the gallium phthalocyanine in the photosensitive layer or the charge generating layer. |
