HP Deskjet D4268 Printer - Manual (Page 77)

Solution:
To resolve the problem
1. Make sure that no USB devices other than the printer, the keyboard, and the
mouse are connected to the computer.
2. Disconnect and reconnect the USB cable.
3. Make sure that the printer is connected directly to a USB port on the computer
(instead of through a USB hub).
4. If the installation program still does not locate the printer, replace the USB cable,
and then continue to the next step.
5. Click Cancel, and then restart the computer.
6. Turn the printer off, and then disconnect the USB cable and power cord.
7. Quit any antivirus programs or other software programs that are running on the
computer.
NOTE: To quit an antivirus program, follow the manufacturer’s instructions.
8. Reinstall the printer software:
a. Insert the printer software CD into the drive.
b. Follow the onscreen instructions. When the installation program prompts you,
connect the USB cable and the power cord to the printer, and then make sure
that the printer is on.
NOTE: Do not connect the USB cable until you are told to do so.
c. Follow the onscreen instructions to finish the installation.
9. Restart the antivirus program.
"Unknown Device" message displays
Cause: During installation, an “Unknown Device” message might be displayed
when you connect a USB cable between the printer and the computer. A possible
cause might be a defective USB cable.
Solution:
NOTE: This is not a problem if you are using Windows 2000. If you are using
Windows 2000 and this message is displayed, you can continue with the software
installation.
To resolve the problem
1. Disconnect the USB cable from the printer.
2. Disconnect the power cord from the printer.
3. Wait approximately 30 seconds.
4. Reconnect the power cord to the printer.
5. Reconnect the USB cable to the printer.
6. If the “Unknown Device” message is still displayed, replace the USB cable.
Installation problems 75