These printers use the PFI-103BK cartridge:

Canon imagePROGRAF iPF 5100

Canon imagePROGRAF iPF 5100 Wide Format

Canon imagePROGRAF iPF 6100

Canon imagePROGRAF iPF 6100 Wide Format

Canon imagePROGRAF iPF 6200

Canon imagePROGRAF iPF 6200 Wide Format