HP SCANJET N6350 Guía De Instalación Inicial página 25

If the problem persists after verifying the above items, try the following:
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.
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.
Check the Ethernet connection
If you are trying to access the scanner on a network, check the following.
• Use the Ethernet cable that was included with the scanner. Another Ethernet cable
might not be compatible with the scanner.
• The Ethernet cable is securely connected between the scanner and a router, Ethernet
jack, or Ethernet switch.
• Make sure the USB cable is not connected. If both the Ethernet and USB cable are
connected, the Ethernet connection will not work.
• Run the Check Status utility from the Network tab in the HP Scanner Tools Utility
(see the HP Scanner Tools Utility Help for more information).
• Make sure your computer is on the same subnet as the network scanner. Contact
your network administrator for assistance, or see the documentation for your router.
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 is on; when on and no error or attention
conditions exist, the Power LED is lit with a steady green light.
Installation troubleshooting 21