Okay, it's possible that the light went out in it... check to make sure that it's actually illuminating the page that you're trying to scan.
maybe it got damaged in the move. if it's the bulb, I think it's possible to replace it. if it's something else, then you're probably out of luck.
Another option, would be to DL and install the latest drivers for it. it's possible (but not too likely) that the color settings got messed up, and a nice clean install of the scanning sofware would set it back ot normal.