PURPOSE: To obtain a photoreceptor very small in change of characteristics when used in a copying apparatus, by charging an electrophotographic receptor consisting of a substrate and a photoconductive layer in a state heated to ≥40°C.

CONSTITUTION: A photoconductor, of an oxide, sulfide or iodide of a metallic element such as Zn, Hg, Al, Sb, Bi or Ca is dispersed into a binder resin, such as polyethylene, polyester, or epoxy resin, and this is added to a substrate to form a photoconductive layer. This is heated to 40W70°C, charged at this state to obtain an electrophotographic receptor. An amount of binder for forming the photoconductive layer is preferably 0.5W50 pts.wt. per 100 pts.wt. photoconductor, and the thickness of this layer is generally 5W100μm. Electrical resistance of the photoconductive layer in the dark is set usually in 1012W1013ohm.cm range.