Striking a balance between the relatively low cost PFI-110 and the high capacity PFI-710, the original Canon PFI-310BK could be considered the standard capacity black  for your inkjet printer.Each genuine Canon 2359C001AA contains 330ml of pigment based black ink, that not only gives a great quality print, but also a print that will last, even when directly exposed to environmental factors. Canon have designed the PFI-310BK to be used by photographers, sign-makers and other printing professionals who expect nothing but premium results.The Canon 2359C001AA black ink cartridges comes fully guaranteed by the manufacturer, but we are more than confident that you will never need to contact them relating to this purchase.