If official drivers fail, use VueScan . It is a third-party tool that supports the LiDE 20 on Windows 11 and macOS Sonoma.

This scanner draws power from the USB cable. Use a port directly on your PC, not a weak USB hub.

Canon CanoScan LiDE 20 Driver Guide The Canon CanoScan LiDE 20 is a classic, slim scanner. Since it is an older model, finding the right software for modern computers can be tricky. 📥 Official Driver Downloads