Lexmark 64435XA Black Toner Cartridge is designed to perform in the Lexmark T640, T640DN, T640DTN, T640N, T640TN, T642, T642DN, T642DTN, T642N, T642TN, T644, T644DN, T644DTN, T644N, T644TN
Compatible Brand 64435XA Black Toner Cartridge fully compatible with the Lexmark T640, T640DN, T640DTN, T640N, T640TN, T642, T642DN, T642DTN, T642N, T642TN, T644, T644DN, T644DTN, T644N, T644TN. The use of compatible supplies does not void your printer warranty.