These printers use the FX6 cartridge:
Click On a Printer to View it's Cartridges
          Canon CanoFax L-1000
          Canon Fax L-1000
          Canon KC 3170
          Canon KC 3175
          Canon L 1000
          Canon L 3170
          Canon L 3170 MS
          Canon L 3175
          Canon L 3175 MS
          Canon Laser CLass 3070 MS
          Canon Laser Class 3170
          Canon Laser Class 3175
          Canon Laser Class 3175 MS
          Canon LaserClass 3170 MS