Re: General USB problems - help!
I had the same problem with the usb storage issue. When I pluged in my flash drive and had my scsi hard disk connected the scsi disk would be bumped to sdb instead of sda. Try this after you reconnect your usb storage device mount it as sdb instead of sda it should work. I don't really use a scanner in linux so I can't help you here. Also if you have udev installed uninstall it. lsusb dosn't work with it installed also your scanner might work if it is uninstalled.