For models without keypad
(1) Press the [▲] or [▼] key in the initial 
state of maintenance mode to display 
"MAINTENANCE 33" on the LCD, and 
press the [OK] key. One of the following 
items is displayed on the LCD 
depending on the wired LAN connection 
of the machine.
(2) When the [Stop] key is pressed, the 
machine returns to the initial state of 
maintenance mode.
For models with keypad
(1) Press the [3] key twice in the initial state 
of maintenance mode. One of the 
following items is displayed on the LCD 
depending on the wired LAN connection 
of the machine.
(2) When the [X] or [Stop] key is pressed, 
the machine returns to the initial state of 
maintenance mode.