Rodger Rak Posted April 3, 2022 Report Share Posted April 3, 2022 I have had Nitro Pro installed for a while. It has worked well until now. Now, when I attempt to scan documents I receive the following error. "Unable to scan. Unable to open TWAIN device: 'WIA-WSD Scan Device' (check power and connections.) (TWCC_BUMMER)." I have checked power and connections. I am able to print from Nitro. I am also able to scan from other apps on the computer to the connected printer/scanner. How can I resolve this? Thanks! Link to comment Share on other sites More sharing options...
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