Hi Garth,
Please follow this guideline:
I recommend that you do the troubleshooting steps, which you can find in the support article
https://support.microsoft.com/en-us/help/402739...
Try to print a test page to check if the issue is fixed. Please refer to the support article Printing a Test Page - Windows, section Printing a test page - Windows 10. https://support.usa.canon.com/kb/index?page=con...
You can also try to download the drivers from the Canon website and install them. Use the imageCLASS MF4450. https://www.usa.canon.com/internet/portal/us/ho...
Write me back if it works or not.
Thanks,
Andrew N.
Note: my post can contain URL links to a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.