Lexmark Diamond Fine toner cartridge

For printers as fast and versatile as the Optra series, 4039 10plus and the IBM 3112 and 3116, you should demand big output (let's say as much as 14, 000 pages) from your print cartridge. Print at 300, 600 or 1200 dpi and you'll get the same consistent look, thanks to the new printing process that uses Diamond Fine toner, which produces the sharpest possible common/images.