The genuine Canon 2791C001 has an official estimated page yield of 16,500 prints, making it absolutely huge for a cyan ink cartridge. Whilst it is also more expensive than most Canon ink cartridges too, the time saved in using a high capacity unit, like the PGI-7500XLC, means it is still a worthwhile purchase.Compatible with the Canon WG7550 and any other business inkjet printer found listed on this page, the 2791C001 cyan ink cartridge is very versatile and the results it offers are hard to beat. Canon fully guarantee the PGI-7500XLC directly, offering top-quality support and care in the rare instance there is an issue with this fine product.