These printers use the CLI271XLGY cartridge:
Click On a Printer to View it's Cartridges
Canon Pixma MG-5720
Canon Pixma MG-5721
Canon Pixma MG-5722
Canon Pixma MG-6800 Series
Canon Pixma MG-6820
Canon Pixma MG-6822
Canon Pixma MG-7720
Canon Pixma TS-9020