Patent ID: 8086142

Claim:
A bias charge roller comprising a conductive core and an overcoat layer, wherein the overcoat layer comprises a phenolic resin and a conductive agent; wherein the phenolic resin is a formaldehyde polymer generated with phenol, p-tert-butylphenol and cresol; a formaldehyde polymer generated with ammonia, cresol, and phenol; a formaldehyde polymer generated with 4,4′-(1-methylethylidene) bisphenol; a formaldehyde polymer generated with cresol and phenol; a formaldehyde polymer generated with phenol and p-tert-butylphenol; a nitrile phenolic; an epoxy phenolic; or a mixture thereof; and wherein the overcoat layer has a thickness of from about 0.1 μm to about 15 μm.