These printers use the 1361751 cartridge:
Click On a Printer to View it's Cartridges
          Lexmark Optra SC-1275
          Lexmark Optra SC-1275 N
          Lexmark Optra SC-1275 N Solaris
          Lexmark Optra SC-1725
          Lexmark Optra SC-1725 N
          Burroughs-Unisys UDS 9712 C