500Z BLACK RTN PROG IMAGING UNITLexmark Return Programme Imaging Units are patented devices that are sold at a special price subject to the restriction that the imaging unit may be used only once. Following the initial use, the customer agrees to return the imaging unit only to Lexmark for remanufacture and or recycling. The Return Programme imaging units are designed to stop working when they reach their respective rated life (as established by Lexmark). In addition, the imaging