I use this for my Canon printer to print descriptions for my art that I sell, for signs in my art festival booths, for information for the events and now… I print the inside of my Christmas cards on here. So my ink use is back end and front end use. I absolutely adore these ink cartridges, I have noticed no color variation between these and the official inks. The cartridges are built the same and installed without a problem. They are a great cost value when compared to the official cartridges and I will never go back. I feel this printer is particularly hungry for ink even when printing black and white, so having inks that are within my budget is worth it. I do recommend these.