These printers use the 18C1428 cartridge:
Click On a Printer to View it's Cartridges
          Lexmark X 2500
          Lexmark X 2530
          Lexmark X 2550
          Lexmark X 5070
          Lexmark X 5075
          Lexmark X 5320
          Lexmark X 5340
          Lexmark X 5410
          Lexmark X 5495
          Lexmark Z 845
          Lexmark Z 1300
          Lexmark Z 1310
          Lexmark Z 1320