If you have a sheet fed scanner and there are constant lines on the scans, be sure to check the left side of your unit for scratches on the glass. I know a business owner in San Diego has had this happen and sure enough, it was a spec of dirt on the narrow strip of glass that the scanner utilized. You'll know for sure if flatbed scans still work. Have fun!
Kurt Rein MobileComputerWizard.com 858-345-0382 Office San Diego Computer Repair