These printers use the 6368C001 cartridge:
Click On a Printer to View it's Cartridges
          Canon Color ImageClass MF-663 CDW
          Canon i Sensys MF-664 CDW
          Canon i Sensys MF-667 CDW
          Canon i SENSYS LBP 646 CDW
          Canon i SENSYS LBP 647 CDW
          Canon imageCLASS MF-662 CDW
          Canon imageCLASS MF-665 CDW
          Canon ImageClass LBP 646 CDW
          Canon ImageClass LBP 647 CDW