Update: I fixed it! But I had get out of everything and restart my computer and it worked. Its scanning correctly again. But have to say its annoying glitch. I will not be recommending this to my friends!
I have the same annoying problem. I have CannonScan LiDE 400. It was working well now I have the error message- The scanner is not available while in use by another application or user code: 3,206,0. I have spent the last 2 hours reading instruction ...
