With Canon Genuine Fax cartridges you can be sure you have the right supplies for your faxing needs. Using Canon Genuine products means a longer life for your Canon equipment, high yields, superior performance and the highest-quality output for your machine. FX-7 is compatible with Canon Laser Class 710/720/730.Compatible Printers: Canon Laser Class 710, Canon Laser Class 730 I, Canon Fax L 2000 IP, Canon Fax L 2000, Canon Laser Class 720 I