5-23
Confidential
 Version information check
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 
57” on the LCD, and press the [OK]. “IC_ACT ALL” is displayed on the LCD.
(2) Press the [▲] or [▼] to display “5” on the LCD, and press the [OK]. “IC_VER BLACK” is 
displayed on the LCD.
(3) Press the [OK]. Perform the destination check. If it is compatible, “IC_VER **” is 
displayed on the LCD. (“**” indicates the version information) If it is not compatible, an 
error in the <Error display> table on the previous page is displayed on the LCD.
 Continuity (contact) check
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 
57” on the LCD, and press the [OK]. “IC_ACT ALL” is displayed on the LCD.
(2) Press the [▲] or [▼] to display “0” on the LCD, and press the [OK]. “IC_TX BLACK” is 
displayed on the LCD.
(3) Press the [OK]. Perform the destination check. If it is compatible, “IC_TX OK” is 
displayed on the LCD. If it is not compatible, an error in the <Error display> table on the 
previous page is displayed on the LCD.