| 摘要 |
PURPOSE:To prevent deterioration for a long period of time and to improve an image and photosensitivity by forming a layer made of a specified amorphous carbon hydride as the surface layer of an electrophotographic sensitive body. CONSTITUTION:The photosensitive layer 120 is formed on a conductive substrate 110, and the surface layer 130 made of amorphous carbon hydride contg. 10-40atom% H and having a thickness of 0.005-1mum and a ratio alpha1/alpha2 of absorption coefft. at 2,920cm<-1> alpha1 to that at 2,960cm<-1> alpha2 of >=0.8 in IR absorp tion spectra is formed on the photosensitive layer 120 to prepare the electrophotographic sensitive body. The photosensitive layer 120 may be divided into a blocking layer 121, a photoconductive layer 122, and a buffer layer 123. The presence of the surface layer made of the specified amorphous carbon hydride on the surface of the amorphous silicon photosensitive layer permits the photosensitive body to be improved in characteristics and made insusceptible of circumstantial staining, and to be enhanced in humidity resistance and print ing resistance. |
