Patent ID: 7604914

Claim:
An electrophotographic imaging member, comprising: a substrate; an undercoat layer disposed on the substrate, wherein the undercoat layer further comprises: a polyol resin, an aminoplast resin, and a metal oxide dispersed therein; and at least one imaging layer formed on the undercoat layer, wherein the polyol resin is present in an amount of from about 5% to about 80% by weight of the total weight of the undercoat layer and the aminoplast resin is present in an amount of from about 5% to about 80% by weight of the total weight of the undercoat layer, and the polyol resin is selected from the group consisting of acrylic polyols, polyglycerols and mixtures thereof, and further wherein the metal oxide has a size diameter of from about 5 to about 300 nm and a powder resistance of from about 1×10 3 to about 6×10 4 ohm/cm when applied at a pressure of from about 50 to about 650 kg/cm 2 .