I have the same issue.
Image Capture app sees the scanner, but will not scan.
Scanning (initiated by UI) fails when attempting connection to Mac OS Monterey. Just updated to Monterey, still works correctly on second partition OS Big Sur, same HW. I don't think the driver version is relevant as scan is initiated via UI using templates/file desitinations. but.... Updated Monterey OS to 5.9; the working partition, Big Sur driver version remains 5.8.
Appreciate any suggestions, or experience with Monterey.
-g