Patent ID: 7829251

Claim:
A rectangular stress relieved, flexible imaging member comprising: a substrate; an anti-curl back coating; an optional hole blocking layer; a charge generating layer; a charge transport layer; wherein said charge transport layer comprises from about 55 weight percent or more of an aromatic amine charge transport compound and a polymeric film forming resin; and, wherein the rectangular flexible imaging member is subjected to a heat treatment process to produce a stress relieved, flexible imaging member, the process comprising: providing the rectangular flexible imaging member at ambient temperature; heating the charge transport layer to a temperature from about 5° C. to about 40° C. above the Tg of the charge transport layer; stretching the flexible imaging member with its heated charge transport layer over a concave tube; and cooling the charge transport layer to below its Tg; wherein the concave tube has a center diameter and an end diameter, the center diameter being from about 0.5 inches to about 5 inches; and the end diameter being from about 0.002 inches to about 0.1 inches larger than the center diameter, so that the flexible imaging member is stretched in a belt direction and in a transverse direction.