HP 4000/4050 Maintenance Kit Reset Procedures.
Posted by Ed Dayton on 06 December 2017 03:17 PM
To complete installation:
To clear the ‘PERFORM USER MAINTENANCE’
message and reset the maintenance page
• Hold down the left side of the ITEM and VALUE
buttons while turning the printer on.
• Wait for “Reset Maintenance Count” to be
displayed and then release both keys.