How to Reset a Network Card in an HP Laserjet P2015?

1. Shut down the P2015. Wait for all the LED lights to go out.
2. Hold down the 'Go' button. Turn the P2015 back on and continue to hold the 'Go' button.
3. Press the 'Go' button while the printer powers on. Continue to hold the 'Go' button for at least five seconds, but no more than 15 seconds.
4. Release the 'Go' button. The LED lights on the P2015 should begin cycling and will continue to cycle until the cold reset process is complete. If the LED lights do not cycle, you will need to restart the process by powering off the printer and restarting it while holding the 'Go' button.