An intermediate transfer member that contains a polymer of a polyester, a polycarbonate and a polyalkylene glycol, such as a polyethylene glycol, and further including as an optional component a conductive material such as a metal oxide or carbon black. 4 atomic %, wherein the fluorine amount F, the one element amount X, and a valence number difference k between the first and second metals or between oxygen and nitrogen. The blower duct is in communication with a plenum through an opening. Additionally, the spent laser exhaust gas is recycled back into molecular nitrogen, molecular iodine, molecular oxygen, and molecular chlorine. The measurement of the threshold voltage shift for a particular period of time will be proportional to the value of the applied voltage.