Microsoft’s latest update broke many legacy TWAIN drivers.
The iR2420 is a legacy device (circa 2008-2012). It does not support "Scan to Email" or native cloud scanning out of the box. Scanning requires proprietary Canon software (Network ScanGear) or TWAIN drivers. canon imagerunner 2420 scanner setup upd
This requires the optional network card and a shared folder on your PC. Canon imageRUNNER 2420 Microsoft’s latest update broke many legacy TWAIN drivers