So that the Community can help you better, we will need to know exactly which Canon printer model you're using, since we have more than one model whose number is in the 490 range. That, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, our US-based technical support team is standing by ready to help 24/7 via email at http://Canon.us/SupportCF or by phone at 1-800-OK-CANON (1-800-652-2666) weekdays between 10 AM and 10 PM ET (7 AM to 7 PM PT). We also encourage you to check out our Knowledge Base at that same link for answers to common questions.
Thanks and have a great day!