Electrophotographic apparatus with amorphous silicon-carbon photosensitive member driven relative to light source

摘要

An electrophotographic apparatus includes an amorphous silicon electrophotographic photosensitive member thereon having a conductive base, a photoconductive layer thereon containing carbon atoms, a content of which is minimum adjacent a position closest to the surface layer and/or other atoms, and a surface layer thereon containing 40-90 atomic % of carbon atoms and/or other atoms; a light source for electric discharge driven through a pulse width modulation using a reference wave having a frequency of not higher than 10 kHz; a device for projecting information light onto the photosensitive member; and a driver for driving the photosensitive member relative to the light source at such a speed that a peripheral speed of the photosensitive member divided by the frequency of the reference wave is not more than 1 mm.