Review on GPC Image Compatible Ink Cartridges for Canon PGI-1200XL: Ultimate replacement pack for MAXIFY MB series printers (5-Pack, Black, Cyan, Magenta, Yellow) by Adam Cummings

Black ink just installed. The print result is almost the same as CANON black ink, maybe a little lighter. It's very good for the price. Hope all other colors work well too. Update 06/09/2018 Black ink no longer prints after about two weeks. I tried replacing it but Canon wouldn't pull out the cartridge unless it was empty. So I tried deep cleaning. The printer warned it would use a lot of ink, so I went ahead anyway. It worked! Update 10/21/2018 Recently ordered another set and it arrived quickly. Unfortunately there was no yellow cartridge in the box. I was very disappointed and had to send it back.