The Canon CLI-521 Black Ink Cartridge is designed for everyday use and will ensure your photos and documents have crisp, clear blacks which won't fade or smudge thanks to Canon's long-lasting, quick-drying ink formula. The CLI-521 Black Ink Cartridge is compatible with Canon's Pixma iP3600, iP4600, MP540, MP620, MP630, MP540 & MP980 inkjet printers.
