My DM3220 suddenly stopped scanning both sides of the document. The top side of the document comes out black while the bottom side copies perfectly. I have Windows XP and everything worked just fine until now. The scanner was purchased in April of 2016. TIA
I believe those scanners have a dual adf, which would mean one of the 2 sensors is acting up, or is covered.
So you should be able to have a look here (step 5) for the one that does side 2.