The Scanner Does Not Turn On; The Scanner Does Not Turn Off; You Cannot Start Epson Scan - Epson GT-20000N Pro User Manual

Off On

The Scanner Does Not Turn On

❏ Make sure your scanner's power cord is securely connected to the scanner and a
working electrical outlet.
❏ Make sure the electrical outlet works. If necessary, test it by plugging in another
electrical device and turn it on.

The Scanner Does Not Turn Off

Make sure the scanning software is not running.

You Cannot Start Epson Scan

❏ Make sure the scanner is turned on.
❏ Turn off the scanner and computer, then check the interface cable connection between
them to make sure it is secure.
❏ Use the USB cable that came with your scanner or that is indicated in "USB Interface"
on page 144.
Note:
A USB cable is not bundled with the scanner in some areas.
❏ Connect the scanner directly to the computer's USB port or through one USB hub only.
The scanner may not work properly when connected to the computer through more
than one USB hub.
❏ Make sure your computer supports USB. See "Checking For Windows USB Support"
on page 116 for instructions.
❏ If you are using any TWAIN-compliant program, such as Adobe Photoshop Elements,
make sure that the correct scanner is selected as the Scanner or Source setting.
❏ If you upgraded your computer's operating system, you need to reinstall Epson Scan.
Uninstall Epson Scan as described in "Uninstalling Your Scanning Software" on page
127, then reinstall it as described in the Start Here sheet.
The scanner is ready to scan.
If the optional ADF is installed, this indicates a problem
with the ADF, such as an empty ADF, or an open cover.
Check the ADF and correct the cause of the problem.
GT-20000 User's Guide
115
Troubleshooting