Sophia Global Remanufactured Ink Cartridge Replacement for Canon PG-40 and CL-41 (1 Black and 1 Color) I'm always hesitant to use 3rd party ink. When I was still in the computer business, we had a client bring in a printer that looked like a small animal had been butchered inside it. His refilled ink cartridge had leaked and the fast back and fourth left an astounding mess. These ink cartridges still are not recognized by my Canon printer so the convenient low ink warning is missing. However the pair of cartridges are a better price than the single cartridge from Canon. I have printed out some photos and they are not quite as good as the Canon cartridges but so close that I needed a magnifier to tell the difference. I recommend them. I purchased them at Amazon.