Patent ID: 6549223
Filing Date: 2003-04-15
Classification: G03G

Abstract:
An electrophotographic apparatus comprising an electrophotographic photosensitive member and exposure means for forming a static latent image on the surface of the electrophotographic photosensitive member by scanning with an exposure beam based on picture information,the spot diameter of the exposure beam being 2.5 times or more the size of one pixel of an image formed by the electrophotographic apparatus, wherein a Fischer hardness of the surface of the electrophotographic photosensitive member is no less than 240 Ns/mm2, a NESA sensitivity of the electrophotographic photosensitive member is no less than 2000 VÂ·cm2/&mgr;J, the electrophotographic photosensitive member comprises at least an electric charge generating layer and an electric charge transportation layer, and a thickness of the electric charge transportation layer is no more than 30 &mgr;m.