Patent ID: 7642029

Claim:
An imaging member, comprising: a flexible substrate; a layer comprising a charge transport material, wherein the layer comprises: a film-forming polymer binder; trifluoro acetic acid; a first charge transport molecule selected from the group consisting of biphenyl diamine, terphenyl diamine, and bis(triarylamine) stilbene; and a second charge transport molecule selected from the group consisting of bis(triarylamine); 1,1-bis(4-di-p-tolylaminophenyl)cyclohexane; tri-p-tolylamine; and triphenylamine as represented by Formulas (IV) to (VII) below: wherein R 1 through R 6 are independently selected from alkyl having 1 to 3 carbon atoms and hydrogen; and wherein D is a divalent linkage selected from —O—, saturated or unsaturated alkyl having 1 to 8 carbon atoms, substituted alkyl having 1 to 8 carbon atoms, and cycloalkyl having 6 carbon atoms, wherein D is not a phenyl; an overcoat layer; wherein the difference in thermal contraction coefficient between the layer comprising a charge transport material and the substrate is from about +2×10 −5 /° C. to about −0.5×10 −5 /° C. in the temperature range from about the Tg of the layer comprising a charge transport material to about 25° C.; and wherein the imaging member is devoid of an anti-curl back coating.