74C0S40 Lexmark 7K Yellow Toner Cartridge (CS720) Lexmark 7K Yellow Toner Cartridge (CS720) Essential to Lexmark Print System Performance. 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. 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. 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.