Patent ID: 7727691

Claim:
An electrophotographic photosensitive member comprising a conductive layer, an intermediate layer and a photosensitive layer in this order on a substrate, in which the conductive layer contains a binder resin and conductive particles, wherein: the conductive particles are TiO 2 particles coated with oxygen-deficient SnO 2 ; the conductive particles have an average particle size of 0.2 to 0.6 μm; the conductive layer has a volume resistivity of 5×10 5 to 8×10 8 Ω·cm; and an average particle size (D [μm]) of the conductive particles, and a weight ratio (P/B) of the conductive particles (P) and the binder resin (B) in the conductive layer, satisfy a following relation (1): 0.01×( P/B )+0.28≦ D≦ 0.14×( P/B ) (1).