Cannot scan on MF 732 CDW: Error code: 2100009

[oaltun]

OS: Mac OS X 10.14

Installed Canon MF Scan utility and added the printer from Network Scanner.

When I try to scan, I get the Error code: 2100009 - Cannot Scan (see below).

I also tried from scanning from printers/scan, that works, but I cannot scan double sided there. 

Need help urgently pls. 

[Jambalaya_Man]

I'm running Ventura 13.1 and started getting the "2100009" today. non_dirty, your fix worked!

[user03895r7]

I'm having the same problem with tahoe.   It involves the TWAIN driver, which for some reason, though still widely used (even in the latest version of macOS), Canon has decided that nobody needs the TWAIN driver anymore.   The notes say to use version 2.5 or earlier for the scanner portion, which contains a TWAIN driver, but as others have found out, it doesn't seem to exist, or if if it does, it's very, very hard to locate.