5-1
Confidential
1. MAINTENANCE MODE
Maintenance mode is exclusively designed for checking, setting and adjusting the machine 
using the buttons on the control panel. 
Using maintenance mode functions, you can conduct operational checks of sensors or test 
printing, display the log information or error codes, and change the worker switches (WSW) etc.
1.1 How to Enter Maintenance Mode
1.1.1 Method of entering end-user accessible maintenance mode 
Basically, the maintenance mode functions should only be accessed by service personnel. 
However, end users are allowed to use some of these functions under the guidance of service 
personnel over the phone. End users can only use the functions shaded in the table on the on 
page 5-2 (function codes 06, 09, 10, 11, 12, 25, 43, 45, 52, 53, 54, 61, 77, 80, 82, 87, 88 and 
91).
<Operating Procedure>
1.1.2 Method of entering maintenance mode for service personnel
<Operating Procedure>
Non touch panel models
(1) While the machine is in the ready state, 
press the [Menu], [Start], and [Menu] 
buttons in this order. 
"0" is displayed on the LCD.
(2) Use the keypad to enter the 
maintenance mode function code to be 
executed.
(3) Each time the selected maintenance 
mode function is completed, the 
machine returns to the ready state 
automatically.
Touch panel models
(1) While the machine is in the ready state, 
press the [Menu], [Start], and [0] 
buttons in this order. 
"0" is displayed on the LCD.
(2) Use the keypad to enter the 
maintenance mode function code to be 
executed.
(3) Each time the selected maintenance 
mode function is completed, the 
machine returns to the ready state 
automatically.
Non touch panel models
(1) While the machine is in the ready state, 
press the [Menu] and [Start] buttons in 
this order. Then, press the [ ] button 
four times to enter maintenance mode.
(2) "
 
 MAINTENANCE 
 
 
" is displayed 
on the LCD to indicate that the machine 
has moved into the initial state of 
maintenance mode. The machine is 
ready to accept entry via the buttons.
(3) To select any of the maintenance mode 
functions shown in the list on the next 
page, use the keypad to enter the 
maintenance mode function code to be 
executed.
Touch panel models
(1) While the machine is in the ready state, 
press the [Menu] and [*] buttons in this 
order. Then, press the [2], [8], [6], and 
[4] buttons in this order to enter 
maintenance mode.
(2) "
 
 MAINTENANCE 
 
 
" is displayed 
on the LCD to indicate that the machine 
has moved into the initial state of 
maintenance mode. The machine is 
ready to accept entry via the buttons.
(3) To select any of the maintenance mode 
functions shown in the list on the next 
page, use the keypad to enter the 
maintenance mode function code to be 
executed.