Original Printing colours: Black Black toner page yield: 20000 pages Laser printing 1 pc(s) Essential to Lexmark Print System Performance.Consistently outstanding image quality. Long-life system reliability. Superior sustainability. Innovative shake-free print system.Unison TonerEssential 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.High YieldMaximise your savings and enjoy premium quality with Genuine Lexmark cartridges. High Yield cartridges offer a lower cost per page and contain more pages than Standard Yield cartridges do. Perfect for high volume printing.Best TogetherGenuine Lexmark supplies are engineered to work Best Together with your Lexmark printer, delivering excellent print quality from the first page to the last.Lexmark Cartridge Collection ProgrammeGoing green has never b