Image forming apparatus and process cartridge

An image forming apparatus includes an electrophotographic photoreceptor that includes a conductive substrate and an organic layer which includes a photoreceptive layer; a charging member that charges the surface of the electrophotographic photoreceptor; an electrostatic latent image forming unit; a developing unit; a transfer unit; and a cleaning member that performs cleaning on the surface of the electrophotographic photoreceptor, wherein a contact area of the electrophotographic photoreceptor with the cleaning member in an axis direction of the electrophotographic photoreceptor is wider than a contact area thereof with the charging member, and d, d′, d″ and d″max, which each are values with respect to the total film thickness of the organic layer at the respective portions as defined in the present specification, satisfy expressions 0.97 d′/d 1.03, 0.97 d″/d 1.1 and 1.03 d″max/d 1.1 at each of both of the end portions in the axis direction of the electrophotographic photoreceptor.