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• Use the USB or Ethernet cable that was included with the scanner. Another USB or
Ethernet cable might not be compatible with the scanner.
• USB connection: Ensure that the USB cable is securely connected between the
scanner and the computer.
• Ethernet connection: Ensure that the Ethernet cable is securely connected between
the scanner and a network router, Ethernet jack, or Ethernet switch.
If the problem persists after verifying the above items, follow these steps:
1. Do one of the following tasks depending on how the scanner is connected to the
computer:
• If the USB cable is connected to a USB hub or a docking station for a laptop,
disconnect the USB cable from the USB hub or the docking station, and then
connect the USB cable to a USB port on the back of the computer.
• If the USB cable is directly connected to the computer, plug it into a different USB
port on the back of the computer.
• Remove all other USB devices from the computer except for the keyboard and
the mouse.
• If the Ethernet cable is connected to a network router, try connecting it to a
different port on the router.
2. Press the Power button to turn off the scanner, wait 30 seconds, and then turn on
the scanner.
3. Restart the computer.
4. When the computer is restarted, try using the scanner.
If the scanner works and you changed the way it was connected to the computer in Step
1, the communication problem might involve the USB hub, the docking station, a USB
port, or another USB device. Leave the scanner directly connected to the computer
through a USB port on the back of the computer. Try using the scanner after reconnecting
each additional USB device, and disconnect any USB devices that prevent the scanner
from working correctly.
If the scanner does not work, uninstall and then reinstall the HP scanning software.
See also
“
Uninstall and reinstall the software” on page 38
Check that the scanner has power
The power cable is connected between the scanner and a power outlet.
• Ensure that the power cable is securely connected between the scanner and a live
electrical outlet.
• If the power cable is connected to a surge protector, ensure that the surge protector
is plugged into an outlet and turned on.
• Ensure that the Power button on the scanner panel is on; when on and no error or
attention conditions exist, the Power LED is lit with a steady green light.
Chapter 5
40 Troubleshooting