Critical Note: 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.
The iR2420 was heavily sold in APAC (Asia-Pacific). The most reliable driver repository remains the Canon India or Canon Singapore support site. canon imagerunner 2420 scanner setup upd
https://in.canon or https://sg.canonThe most common reason users struggle with scanning is the lack of the specific scanner driver. Critical Note: The iR2420 is a legacy device
The ScanGear driver uses Port 11000 (UDP) for discovery. Fix: Step 1: Access the Canon Asia Support Portal
Windows Defender Firewall > Advanced Settings > Inbound Rules.11000 > Allow connection.