These printers use the 13T0101 cartridge:
Click On a Printer to View it's Cartridges
          Lexmark E 310
          Lexmark E 312
          Lexmark E 312 L
          Lexmark Optra E-310
          Lexmark Optra E-312
          Lexmark Optra E-312 L
          Burroughs-Unisys UDS 10
          Burroughs-Unisys UDS 9908