HP Deskjet F4100 User Guide - Page 10

Chapter 2 3. Double-click HP Uninstaller. Follow the onscreen instructions. 4. After the software is uninstalled, disconnect the HP All-in-One, and then restart your computer. NOTE: It is important that you disconnect the HP All-in-One before restarting your computer. Do not connect the HP All-in-One to your computer until after you have reinstalled the software. 5. To reinstall the software, insert the HP All-in-One CD-ROM into your computer's CD-ROM drive. 6. On the desktop, open the CD-ROM and then double-click HP All-in-One Installer. 7. Follow the onscreen instructions and the instructions provided in the Setup Guide that came with the HP All-in-One. Hardware setup troubleshooting This section contains hardware troubleshooting information for the HP All-in-One. 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 power outlet, surge protector, or power strip. Troubleshooting and support 1 Power connection 2 Power cord and adapter 3 Power outlet • If you are using a power strip, make sure the power strip is on. Or, try plugging the HP Allin-One directly into a 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. Cause: You pressed the On button too quickly. Solution: The HP All-in-One might not respond if you press the On button too quickly. Press the On button once. It might take a few seconds for the HP All-in-One to turn on. If you press the On button again during this time, you might turn the device off. 8 Troubleshooting and support