Chapter 13

4.Turn off the HP All-in-One, wait one minute, then restart it.

5.Reinstall the HP All-in-One software.

CAUTION: Do not connect the USB cable to the computer until prompted by the software installation screen.

This section contains the following topics:

The HP All-in-One will not turn on

I connected the USB cable, but I am having problems using the HP All-in-One with my computer

The HP All-in-One will not turn on

Cause: The HP All-in-One is not properly connected to a power supply.

Solution:

Make sure the power cord is firmly connected to both the HP All-in-One and the power adapter. Plug the power cord into a grounded power outlet, surge protector, or power strip.

Troubleshooting

1Power connection

2Power cord and adapter

3Grounded power outlet

If you are using a power strip, make sure the power strip is on. Or, try plugging the HP All-in-One directly into a grounded power outlet.

Test the power outlet to make sure it is working. Plug in an appliance that you know works, and see if the appliance has power. If not, then there might be a problem with the power outlet.

If you plugged the HP All-in-One into a switched outlet, make sure the switch is on. If it is switched to on but still does not work, then there might be a problem with the power outlet.

102 Troubleshooting

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HP C4390, C4380, C4385 manual HP All-in-One will not turn on, Solution