Developer rolls having a tuned resistivity method for making

摘要

A method for making a developer roll by molding a metal shaft with a conductive or semi-conductive soft rubber forming a rubber core and a coating deposited on the soft rubber core wherein the coating has a conductive agent. The outer surface of the soft rubber core is modified to form an -OH rich surface layer before the coating is deposited onto the outer surface of the rubber core to chemically bond therein.