How do I restore the HP Smart Tank 6000 to factory defaults?

To restore factory defaults from the printer control panel, first open the ink access door, then press and hold the Information button and the Cancel button at the same time for at least 3 seconds. Restoring the printer to factory defaults will remove all settings and functions previously set up on the printer. You can also restore factory settings through the embedded web server (EWS). (Page 14)