These printers use the FO50ND cartridge:
Click On a Printer to View it's Cartridges
          Sharp FO 550
          Sharp FO 4400
          Sharp FO 4450
          Sharp FO 4470
          Sharp FO 4650
          Sharp FO 4700
          Sharp FO 4970
          Sharp FO 5550
          Sharp FO 5700
          Sharp FO 5800
          Sharp FO 5900
          Sharp FO 6700
          Sharp FO DC-500
          Sharp FO DC-525
          Sharp FO DC-535
          Sharp FO DC-600
          Sharp FO DC-635