Developing device having toner carrying body and method of fabricating toner carrying body

A method of fabricating a cylindrical toner carrying body, said cylindrical toner carrying body including an electrically conductive inner layer and an outer resin layer, said electrically conductive inner layer being formed of a cylindrical sleeve made of an electrically conductive metallic material and said outer resin layer being made of a semiconductive resin layer formed on the outer peripheral surface of said cylindrical sleeve, a surface potential at said semiconductive outer layer being controlled by power supplies connected to said electrically conductive inner layer, so that particles of a single-component toner charged by friction can adhere to the surface of said semiconductive outer layer, wherein said method comprises the steps of:

• applying a coating material to an outer peripheral surface of said cylindrical sleeve being made of an electrically conductive metallic material, said coating material being prepared by dispersing fine non-conductive particles into a solvent, said solvent being of such a type as to be cured at a predetermined condition to cause said fine particles to form uniform surface irregularities on said coating when cured;
• and
• curing said coating material thereafter, thereby to form a semiconductive resin layer over said outer peripheral surface of said cylindrical sleeve, the resin layer having a surface roughness defined predominately by the non-conductive particles and in the range of from 2.5 to 7.0 .mu.m.