... CE285A laser printer 1,100% compatible 2,High quality and very nice price 3,Stable Compatible OPC drum ... ]: 12000 pages , A4 , 5% coverage [Note]: OPC Drum is very delicate, because that slight nibbling touch is ... use them with care.If you touch the opc drum print area accidentally, please wipe it ... touch it by hand. Compatible OPC drum for HP CB435A/CB436A/CC388A/CE278A/CE285A laser printer cartridge