These printers use the 8R-3683 cartridge:
Click On a Printer to View it's Cartridges
          Xerox-Tektronix 7032
          Xerox-Tektronix 7032 PLAIN PAPER Fax
          Xerox-Tektronix 7033
          Xerox-Tektronix 7033 PLAIN PAPER Fax