Can I log-off from Windows® during scannng? January 16, 2023 01:55 Updated Please do not log-off from Windows® during scanning. Scanner may not function properly because of operation error. Related articles I cannot uninstall the TWAIN driver (PaperStream IP (TWAIN)). Unable to activate/deactivate PaperStream Capture Pro (Ver 4.x or lower). How do I conduct maintenance on the scanner? An error occurs when I save a file in a particular folder. The "Check" LED lights when powering up the scanner.