How to Resetting the maintenance count HP LaserJet 9000

1. Turn the printer off.
2. Press and hold the checkmark (Select) button.
3. Turn the printer on while still holding the checkmark (Select) button.
4. Continue to hold the checkmark button down until all three control panel lights (LEDs) illuminate, and then release it. "Select Language" will appear on the control panel.
5. Use the Up Arrow to scroll to NEW MAINTENANCE KIT.
6. Press the checkmark button.
7. Verify that the maintenance count was reset by printing a configuration page: press the checkmark, scroll to "INFORMATION" and press checkmark, scoll to "PRINT CONFIGURATION" and press checkmark.