Electrophotographic photosensitive member and apparatus using same

An a-Si photosensitive member and an image forming apparatus are provided which prevent fusion bonding in digital copying machines and attain satisfactory image formation. Specifically, in order that even when uneven abrasion occurs on a drum surface layer, it may not substantially affect the image, a photosensitive member formed by successively stacking on a conductive substrate a photoconductive layer comprising amorphous Si and a surface protective layer comprised of an amorphous material is provided such that the spectral reflectance (%) satisfies the relation of 0 ≤ (Max - Min)/(Max + Mm) ≤ 0.20, and a center line average roughness Ral of the interface on the surface side of the photoconductive layer and the center line average roughness Ra2 of the outermost surface of the surface layer, within the range of 10 mu m x 10 mu m, satisfy the relations of Ra1/Ra2 ≥ 1.3 and 22 nm ≤ Ra1 ≤ 100 nm.