These printers use the DT-48 cartridge:
Click On a Printer to View it's Cartridges
          Nashuatec P 2616
          Nashuatec P 6216
          Nashuatec P6319
          Burroughs-Unisys UDS-123
          Lexmark 323 N
          Lexmark E 321
          Lexmark E 323
          Lexmark E 323 N
          Lexmark E 323 T