These printers use the MX-500NT cartridge:
Click On a Printer to View it's Cartridges
          Sharp MX M-283 N 28PPM
          Sharp MX M-283 N
          Sharp MX M-363 N 36PPM
          Sharp MX M-363 U 36PPM
          Sharp MX M-363 N
          Sharp MX M-363 U
          Sharp MX M-453 N 45PPM
          Sharp MX M-453 U 45PPM
          Sharp MX M-453 N
          Sharp MX M-453 U
          Sharp MX M-503 N 50PPM
          Sharp MX M-503 U 50PPM
          Sharp MX M-503 N
          Sharp MX M-503 U