Now it works - Its Magic!
It works this morning. How strange. I had thought about turning the computer on and off yesterday when I was trying to get it to work and so I tried it but that did nothing. Somehow the computer knew I needed the scanner. I ended up using a Windows machine. Now today when I don't need it, it works. How does it know?? Does my Mint machine hate me? Or is it just having some mischievous fun?