Lexmark C540A1KG Toner Cartridge - Laser - Standard Yield - 1000 Pages - Black - 1 EachFeatures:Compatible with Lexmark C540, C540DW, C540N, C543, C543DN, C544Works in C544DN, C544DTN, C544DW, C544N, C5460DTN, X543DN, X544DNAlso for use in X544DTN,...