HP Photosmart C6340 All-in-One Printer - Manual (Page 148)

• Verify that the USB cable is 3 meters (9.8 feet) or less in length.
• If you have several USB devices attached to your computer, you might want
to unplug the other devices during the installation.
2. Unplug the product power cord, and then plug it in again.
3. Verify that the USB cable and power cord are plugged in.
4. Click Retry to retry the connection.
5. Continue with the installation and restart the computer when prompted.
Cause: The USB connection between the product and the computer failed.
I received a message that an Unknown Error has occurred
Solution: Uninstall the software completely, and then reinstall it.
To uninstall the software and reset the product
1. Disconnect and reset the product.
To disconnect and reset the product
a. Make sure the product is turned on.
b. Press the On button to turn off the product.
c. Disconnect the power cord from the back of the product.
d. Reconnect the power cord to the back of the product.
e. Press the On button to turn on the product.
2. Uninstall the software completely.
NOTE: It is important that you follow the uninstall procedure carefully to
ensure you have removed the software completely from the computer, before
reinstalling it.
Setup troubleshooting 145
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