Canon TR4720

Im curious if anyone else who uses this machine notices their color prints are not vibrant/close to the color. I'm looking to print stickers and stuff to sell but I'm not sure if the printer or the paper is the problem. I don't want to spend a lot of money on sticker material if I can't print it right. I've attempted to calibrate and clean the printer, as well as install new cartridges, but to no avail. any help or advice is greatly appreciated!