Hi JM!
Welcome to the Canon Forum and thanks for your inquiry! While registration is never required, we definitely recommend that you do register your printer so you're in the know for software updates and for any notifications regarding your printer that might come about. It'll also put you in the Technical Support database, so if you should have to call for help, all you'll have to do is just verify your information, saving you time on the phone!
We hope this helps, and please let us know if you have any other questions.
