51B1X00 UNISON Extra High Yield Black Toner Cartridge - 20,000 Page Yield | Compatible for Laser Printers | Ideal for Office & Home Printing Needs

Essential to Lexmark print system performance. Consistently outstanding image quality. Long-life system reliability. Superior sustainability. Innovative shake-free print system. Features Unison™ toner, high yield, 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 Program, Lexmark Return Program Cartridges.