The Canon PC420 laser toner cartridges from Carrot Ink are compatible printer supplies that are guaranteed to meet or exceed the print quality of the OEM (Original Equipment Manufacturer) Canon printer cartridges. With Carrot's Canon PC420 supplies you'll save a bunch of money and get just as good of performance. Our Canon PC420 toner replacements come with a one year satisfaction guarantee. Federal Law protects you when using compatible supplies for the Canon PC420 and does not void your printer's warranty. OEM PC420 toner cartridges and supplies finally have real competition.