❏Make sure the scanner power button is turned on.
❏Turn off your computer and scanner, then check the USB cable connection between them to make sure it is secure.
❏The scanner may not work properly when your computer is in standby mode (Windows) or sleep mode (Mac OS X). Restart EPSON Scan and try scanning again.
❏The scanner may not work properly if you upgrade your operating system but do not reinstall EPSON Scan. See "Uninstalling Your Scanning Software" on page 164 for instructions on uninstalling and reinstalling it.
❏Make sure that EPSON Scan is selected in your scanning program.
If you are scanning with the ADF, see "Starting a Scan With Another Scanning Program" on page 39.
If you are scanning from the document table, see "Starting a Scan With Another Scanning Program" on page 69 for instructions.
❏In the Windows Device Manager, make sure your scanner’s name appears under Imaging devices without a question (?) or an exclamation (!) mark. If the scanner appears with one of these marks or as an Unknown device, uninstall EPSON Scan as described in "Uninstalling EPSON Scan" on page 164. Then reinstall it by following the instructions in your Start Here sheet.
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