Patent ID: 7078143

Claim:
A method for producing an electrophotographic photoreceptor in which a charge generating layer and a charge conveying layer, or an underlying layer, a charge generating layer and a charge conveying layer, are formed on a conductive substrate by sequentially coating, the method comprising: preparing the conductive substrate so as to have a surface roughness caused by a cutting process so that for the surface roughness caused by the cutting process a maximum peak-to-valley roughness height (Ry), centerline average roughness (Ra), the ten-point average roughness (Rz) and average peak-to-peak distance that is an average of the peak-to-peak distance of a cross-sectional curve (Sm) satisfy: (a) Ry=0.8 to 1.4 μm, (b) Ra=0.10 to 0.15 μm, (c) Rz=0.7 to 1.3 μm, and (d) Sm=5 to 30 μm, and peak count Pc satisfies: (e)Pc=60 to 100; sequentially measuring thicknesses of the layers by optical interferometry when the coating is performed to form the layers on the conductive substrate; feeding back measurement results to controlling means; and controlling an amount of coating by an output from the controlling means in accordance with the measurement results so as to adjust the thicknesses of the layers.