These printers use the 4171-302 cartridge:
Click On a Printer to View it's Cartridges
          Konica-Minolta Fax 2500
          Konica-Minolta Fax 3500
          Konica-Minolta Fax 5500
          Konica-Minolta FAX 5500 E
          Konica-Minolta Fax 5600
          Konica-Minolta Minoltafax 2500
          Konica-Minolta Minoltafax 3500
          Konica-Minolta Minoltafax 5500
          Konica-Minolta Minoltafax 5600
          Develop Defax 6500
          Develop Defax 7500
          Konica Minoltafax 2500
          Konica Minoltafax 3500
          Konica Minoltafax 5500
          Konica Minoltafax 5600
          Minolta Fax 5500 E
          Monroe MX 5070