I use Fedora 13 (32-bit) with SANE 1.0.21-2 with a Lexmark X1150 (Dell A920), but I see horizontal bands when scanning with SANE, Xsane, and GIMP. When scanning in Windows, it looks fine.
Example image (300dpi) http://a.imageshack.us/img829/943/lexmarkx1150verticalban.png Andrew
