Resetting the all-in-one for non-HP supplies (HP LaserJet 3390/3392 all-in-one)
When you install a non-HP print cartridge, Unauthorized appears on the control-panel display. In
order to print with this supply, you must press the first time you install this non-HP supply.
The all-in-one will not stop printing when this type of supply is empty. Damage to
the all-in-one could occur if the all-in-one prints with an empty non-HP print cartridge. See
Hewlett-Packard limited warranty statement
Print Cartridge Limited Warranty Statement