In an updated support document, Apple has indicated that a permission-related error when using a scanner on a Mac has been fixed as of macOS 11.6.
When attempting to use a scanner with a Mac, Apple said users might have received an error message indicating they did not have permission to open the application. The error message said to contact a computer or network administrator for assistance, or indicated that the Mac failed to open a connection to the device.
Users may have encountered the error in the Image Capture app, Preview app, or the Printers & Scanners section of System Preferences, according to Apple.
Read more at MacRumors.com