Consistently outstanding image quality. Long-life system reliability. Superior sustainability. Innovative shake-free print system. 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. High Yield Maximise 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 Together Genuine 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 Programme Going green has never been easier. Recycle all your used Lexmark supplies by letting us take care of the details. It's simple, smart and always free. Return for Recycling Lexmark offers customers a broad choice of laser toner cartridges and recycling options including easy return to Lexmark. For superior results, always use Genuine Lexmark supplies. Compatibility: Lexmark Printers: CS331DW CX331ADWE 20N0H40