These printers use the PFI-307M cartridge:
Click On a Printer to View it's Cartridges


          Canon imagePROGRAF iPF 830
          Canon imagePROGRAF iPF 830 MFP M40
          Canon imagePROGRAF iPF 840
          Canon imagePROGRAF iPF 840 MFP M40
          Canon imagePROGRAF iPF 850
          Canon imagePROGRAF iPF 850 MFP M40