These printers use the 13R636 cartridge:
Click On a Printer to View it's Cartridges
Xerox-Tektronix DocuCentre II C-3000
Xerox-Tektronix WorkCentre 7132
Xerox-Tektronix WorkCentre 7232
Xerox-Tektronix WorkCentre 7242
Xerox WorkCentre 7242