We're aware of a technical issue causing some people to experience this error message at the Canon USA site. If you've purchased the printer in the USA, and you're in the United States, we ask that you reach out to support so they can help you get the printer registered. Our team is at 1-800-OK-CANON (800-652-2666) from 9am to 9pm (ET) weekdays.
If you're outside of the USA, you'll need to contact Canon in your country or region for assistance with this. You'll find contact information for Canon in your area HERE.
