HP 3820 series - Manual (Page 16)

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English
installation troubleshooting, continued
Windows USB, continued
When I connect a USB cable
between the printer and my
computer, an “Unknown
Device” message appears.
• Static electricity has built up
in the cable between the
printer and your computer.
• You may have a defective
USB cable.
1.Disconnect the USB cable from the printer.
2.Unplug the printer from its power cord.
3.Wait approximately 30 seconds.
4.Plug the power cord into the printer.
5.Plug the USB cable into the printer.
6.Replace the USB cable or use a parallel
cable if “Unknown Device” continues to
appear in the New Hardware Found dialog
box and you are not using Windows 2000.
to solve the problem... possible causes...
what is the problem?
If you are using Windows 2000, the “Unknown Device” message does not mean
that there is a problem. However, if you are using Windows 98, Me, or XP, the
“Unknown Device” message does mean that there is a problem. Use the
troubleshooting steps below.