So that the Community can help you better, we will need to know more information.
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.
Try switching the usb cable to another port on your computer. If you dont have a extra port, try switching to a port you know that works( mouse, keyboard, etc). Once that is done, plug the mouse or keyboard usb into where the scanner was and then try to scan again.
If the issue continues, I recommend reaching out to Canon support for this issue. You will need to register your Canon gear HERE to access additional support options.
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