The Lexmark T640 OEM Fuser (40X2592-OEM) is a high-quality fuser unit designed specifically for Lexmark printers. Compatible with models such as T640, T640N, T640DN, T640DTN, T640RN, T642, T642N, T642DN, T642DTN, X642E, XM642E, T644, T644N, T644DN,...