Hi Oliver, > when the backend defines the resolution as list and not as range > and the user can NOT select grayscale/lineart then I think it is > ok to commit it after one other person did take a look at it. Yes, that's what it's doing. I will submit a patch soon. > - preview - does meand preview + real scan does work, correct? Yes. The original backend didn't have a preview mode, so I added it. Frank.