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. Standard Yield Keep up-front costs low and quality high with Genuine Lexmark cartridges. Standard Yield cartridges offer a lower purchase price and contain fewer pages than High Yield cartridges do. Perfect for low volume printing.