UMax Astra 1600U scanner problem

I've seen multi-colored *horizontal* lines with my Astra 1200S.  The problem
in my case was that I was using an unregulated "wall wart" power supply,
not the original power supply for the scanner (Scanner purchased used,
no power supply, no manual).  Once I switched to a *regulated* 12 V power
supply of appropriate size, the scanner was fine.

If your lines are vertical, as in running the long direction of the
scanner window, it's unlikely to be the same problem.

        Dave