HP Deskjet 990c HP Deskjet 990C, 980C, and 960C Printers - (Multiple Languages - Page 20

Unknown Device

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english what is the problem? When I connect a USB cable between the printer and my computer, an "Unknown Device" message appears. possible causes... • Static electricity has built up in the cable between the printer and your computer • You may have a defective USB cable to solve the problem... 1. Disconnect the USB cable from the printer. 2. Unplug the printer from its power cord. 3. Wait approximately 30 seconds. 4. Plug the printer 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. 15

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15
english
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 printer 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.
to solve the problem...
possible causes...
what is the problem?