Review on High-Quality Smart Ink Compatible Cartridge Replacement for Canon PGI-250XL CLI-251XL - Ideal for PIXMA MX722 MX922 iP7220 iX6820 MG5420 MG5422 MG5520 MG5522 (1 PGBK & 1 BK/C/M/Y Combo Pack) by David Mills

I was about to buy a genuine black Canon XL cartridge for $24.99 and found that I need to replace two other cartridges and the other two are less than half price. I checked out the full set and was surprised to see the whole set for $10?! The?! I wanted to print out the online course in PDF format, so I needed full tanks, especially the black one. To my surprise, these compatible inks print just like the originals. No grades or passports. Simply replace the entire kit to ensure the printer recognizes the cartridges. It has an installation guide and customer support but I didn't need it as it was spotted right away. Buy this instead of the original set for $70. It's worth it.