Patent ID: 8483591

Claim:
A bias charging member comprising: a) a conductive core, b) a base material provided on the conductive core wherein the base material is selected from the group consisting of isoprene rubber, chloroprene rubber, epichlorohydrin rubber, butyl rubber, polyurethane, silicone rubber, fluorine rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber, ethylene propylene rubber, epichlorohydrin-ethylene oxide copolymer rubber, epichlorohydrin-ethylene oxide-allyl glycidyl ether copolymer rubber, ethylene-propylene-diene terpolymer copolymer rubber, acrylonitrile-butadiene copolymer rubber (NBR) and natural rubber, and c) an outer surface layer provided on the base material, the outer surface comprising a resin of melamine and a polyol, p-toluene sulfonic acid of from about 0.1 weight percent to about 5 percent by weight based on a total solids weight of the outer surface layer and a conductive additive comprising carbon black, wherein the melamine and polyol comprise a weight ratio of from about 25/75 to about 75/25.