Patent ID: 8124305

Claim:
An imaging member comprising: an electrically conductive substrate; a charge generating layer disposed on the substrate; and at least one charge transport layer disposed on the charge generating layer, wherein the charge transport layer comprises a polycarbonate, a charge transport compound of N,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1-biphenyl-4,4′-diamine, and a liquid compound having a high boiling point and comprising an oligomeric polystyrene that has a formula selected from the group consisting of: wherein R 1 is selected from the group consisting of H, CH 3 , CH 2 CH 3 , and CH 2 OCOOCH 3 ; wherein R 1 is selected from the group consisting of H, CH 3 , CH 2 CH 3 , and CH 2 OCOOCH 3 ; wherein R 1 is selected from the group consisting of H, CH 3 , CH 2 CH 3 , and CH 2 OCOOCH 3 ; and mixtures thereof, and further wherein the liquid compound is miscible with both the polycarbonate and N,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1-biphenyl-4,4′-diamine.