Hello!
So that the Community can help you better, we will need to know more information.
What exact model printer are you using (usually on the top or front of the unit)?
Do you see any error messages?
Which Computer Operating System are you using (Windows 7/8/10/11 or macOS 10/11/12)?
How do you connect to your printer (USB or WiFi)?
Any other details you'd like to give will help the Community better understand your issue.
If you're in the United States and this is an urgent support need, please click HERE to visit your My Canon Account to discover your personalized support options.
If you're outside the USA, please click HERE to find support options in your country.
Thanks and have a great day!
