Lexmark T640, T640DN, T640DTN, T640N, T640TN, T642, T642DTN, T642N, T642TN, T644, T644DTN, T644N, T644TN, X642E, X644E, X646E, X646DTE, X646EF - Universal Toner Cartridge (High Yield) Cross Compatible with Dell 5210N, 5310N; IBM InfoPrint 1532, 1552, 1570, 1572 Special Label Applications Compatible