Before Starting
If your hard drive or solid state drive has a name other than Macintosh HD, substitute that in place of Macintosh HD in these instructions.
This article assumes that the Macintosh HD icon appears on your desktop. If this icon is not on your desktop, select Preferences from the Finder menu:

Place a check in the box for Hard disks.

If you don't want to have the Macintosh HD icon on your desktop, you can also find Macintosh HD by selecting Computer from the Go menu in Finder.

Troubleshooting Steps
If you receive an error similar to the one shown here after attempting to scan in macOS 11.5:

Follow these steps to resolve the error.
-
In the Finder, navigate to Macintosh HD / Library / Image Capture / Devices
-
Control-click or right-click CanonIJScanner### (where ### represents alphanumeric characters), then select Open from the menu.

-
Attempt scanning again.
If your product issue was not resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your technical support options.
Or if you still need help, visit our Canon Community by clicking the button below to get answers:
____________________________________________________________________________________________