Lexmark 50F1000 Black Return Program Toner Cartridge (50F1000)Install this black toner cartridge in your compatible printer and take advantage of the shake free system to create bold documents that have crisp, accurate black lines. The Unison formulation provides every printout with consistent, high quality text and images, so your documents look clean and professional. This Lexmark standard yield toner works with select Lexmark printers and can print 1,500 pages, making it well suited for small businesses or