4-2
Confidential
1.1 Setting by Spec (Function code: 74)
Configure the setting by spec as described in “1.3.23  Setting by spec (function code: 74)” in 
Chapter 5.
1.2 Installing Firmware (Sub firmware, demo firmware, 
panel firmware, and main firmware)
1.2.1 Checking firmware version
Check whether the firmware installed on the machine is the latest version. If it is the latest 
version, there is no need to install the firmware. If it is not, be sure to install the firmware to 
the machine as described in “1.2.2 Installing firmware”.
<How to check firmware version>
For models without touch panel
(1) Press the [Menu], and then the [Start] 
key while the machine is in the ready 
state. Then, press the [▲] key four 
times to enter the maintenance mode.
(2) Press the [▲] or [▼] key to display 
"MAINTENANCE 25" on the LCD, and 
press the [OK] key. For keypad 
models, press the [2] and [5] keys in 
this order. The main firmware version 
information is displayed on the LCD.
(3) Press the [Start] key to display the 
version information of the sub 
firmware and demo firmware on the 
LCD, and then check the version 
information.
For models with touch panel
(1) Press and hold the [Home] key for 
approximately five seconds while the 
machine is in the ready state.
(2) Press and hold the blank field at the 
bottom of the LCD for approximately 
two seconds.
(3) Press the [*], [2], [8], [6], and [4] keys 
on the LCD in this order to enter the 
maintenance mode.
(4) Press the [2] and [5] keys in this order. 
The main firmware version information 
is displayed on the LCD.
(5) Press the [Mono Start] key to display 
the version information of the sub 
firmware, demo firmware, and panel 
firmware on the LCD, and then check 
the version information.
Note:
• You can check the sub firmware, demo firmware, panel firmware, and main firmware 
version by implementing "Print maintenance information (function code: 77)"
(refer to “1.3.24  Print maintenance information (function code: 77)” in Chapter 5).