Speedy Inks - 4pk Brother PC301 Compatible Fax Cartridge with Roll For use in: Intellifax 750, Intellifax 770, Intellifax 775, Intellifax 870MC, Fax 885MC, Intellifax 885MC, MFC-970MC Page Yield: 250 Shelf Life: 48 Months Item: Cartridge w/ Roll The use of aftermarket replacement cartridges and supplies does not void your printer's warranty