Installing The Firmware (Sub Firmware, Panel Firmware, Main Firmware, And High-Voltage Firmware); Checking Firmware Version; Installing The Firmware - Brother DCP-L8400CDN Service Manual

1.1 Installing the Firmware (Sub Firmware, Panel Firmware,
Main Firmware, and High-voltage Firmware)
1.1.1

Checking firmware version

Check whether the firmware installed in the machine is the latest version. If the version is the
latest, updating the firmware is unnecessary. If the version is not the latest, install the latest
firmware into the machine following the instructions provided in
in this chapter.
<How to check firmware version>
(1) Hold down the Home key for about 5 seconds while the machine is in the ready state.
Memo:
If you cannot find the Home key, press the Toner key,
and the Home key lights up.
(2) Hold down the blank space at the bottom of the LCD for about 2 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. Then, the Main firmware version information is
displayed on the LCD.
(5) Next, press the Mono Start key to display the version information of the Sub firmware,
Panel firmware, and High-voltage firmware on the LCD and check the information.
Memo:
You can check the firmware version of the Sub firmware, Panel firmware, Main firmware,
and High-voltage firmware by printing the maintenance information.
(Refer to "1.3.31 Printout of maintenance information (Function code 77)" in Chapter

"1.1.2 Installing the firmware"

4-2
5.)
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