Color-banding with Epson Perfection 1250 (plustek) on 64bit
Exactly this problem:
Scanning several pages with my flatbed scanner works fine for the first two pages; the subsequent pages will have wide coloured vertical bands in the background (black for a grayscale scan). This is true for the 64-bit versions of Fedora 16, 17 and 18; with the 32-bit versions of the mentioned distributions there is no problem. Scanning using xsane or simple-scan produce both the misbehaviour.