Printing can be incredibly frustrating, and costly, when it doesn't turn out right. You can follow all the advice about calibrating your screen and using paper profiles, and still the print doesn't look good or match what you see on screen. The good news is that it might not be down to anything you're doing wrong; it may actually be an issue somewhere with the software or the printer. If you print from Lightroom using a Canon printer, in particular one of the newer models, this video shows how to fix it, and the fix is easy.