artec scanner settings:
Levels: enable levels 50 3.5 255
descreen: 175lpi
greyscale
100dpi
150%
brightness -20 (greyed out -- disabled?)
contrast 75 (greyed out -- disabled?)


When restarting the Ultima scancenter, you must re-enable levels and re-select greyscale. The other settings above appear to be retained between uses.