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• If you are using a USB connection, make sure the connection mode switch is set to the position
(ES-300W/ES-300WR).
• Make sure you are operating the scanner within the operating temperature range (ES-300W/ES-
300WR).
• Make sure the USB cable is securely connected to the computer.
• Connect the scanner directly to the computer. The scanner may not work properly when connected
through a USB hub.
• Use the USB cable that came with the scanner.
• Use a USB 3.0 (SuperSpeed) port. You cannot use a USB 2.0 or USB 1.1 port to operate the scanner
on a USB power supply.
• If the scanner does not turn off when operating on the battery (ES-300W/ES-300WR), disconnect the
AC adapter and USB cable and press the reset button on the bottom of the scanner. Then reconnect
the scanner and try again.
Parent topic: Solving Scanning Problems
Related tasks
Changing the Power Save Settings
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