Lexmark MS/MX31x Return Programme 60K Imaging Unit Black 50F0Z00Genuine Lexmark supplies are engineered to work best with your Lexmark printer, delivering print quality from the first page to the last. This imaging unit is designed to work best with Unison toner, a unique formulation which consistently delivers outstanding image quality. The Lexmark Return Programme Imaging Units are patented devices sold at a special price subject to the restriction that the imaging unit may be used only once. The customer agrees