AR-M280 Clear display message

[Guest]

On the AR-M280 copier , how do you get into service mode to clear the required maintenance message on the display?
Please

[Andyrsv]

P*C* 24 then select the item you wish to clear

[Dark Helmet]

Make sure your in copy mode when entering that key sequence and if you just replaced the drum make sure you clear the 24-11 Drum counter timer and if you did DV make sure you enter 25-2 before closing the door then run the DV calibration.