cd /usr/local/bin
./pxscan -lon
#./pxscan  -d8.25x11.1 -r72 -c-3/-10/1.8 -n/tmp/scan.tif
./pxscan  -d5.1x3.3 -r144 -c-10/-12/1.6 -n/tmp/scan.tif
./pxscan -loff
ee /tmp/scan.tif