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This 520Z Black Return Program Imaging Unit for the MX812, MX811, MX810, MX711, MX710, MS812, MS811, and MS810 Series MFPs and Printers is designed to work best with Unison toner. Essential to Lexmark print system performance, Unison Toner's unique formulation consistently delivers outstanding image quality, ensures long-life print system reliability and promotes superior sustainability -- all in an innovative shake-free print system.
Lexmark Return Program 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.