Lexmark C540 Toner Cartridge - Black

Lexmark C540, C540N, C543, C543DN, C544, C544N, C544DN, C544DW, C544DTN, C546, C546DTN, X543, X543DN, X544, X544N, X544DN, X544DW, X544DTN, X546, X546DTN, X548, X548DE, X548DTE OEM Reference: C540H1KG