Browse our collection of Lexmark MS312dn Toner Cartridges and find the perfect replacement toner for your Lexmark MS312dn Laser Printer. Our Print.Save.Repeat. brand toner cartridges save an average of 60% on printing versus the original Lexmark MS312dn supplies (OEM). All our cartridges are unconditionally guaranteed to perform the same or better than the OEM and come with an all inclusive 1-year warranty. Print.Save.Repeat. cartridges are the real deal, and we take pride in our work. Try one completely risk free.