Rewriting The Firmware (Sub Firmware, Main Firmware); Checking Firmware Version; Rewriting The Firmware Using Computer - Brother HL-4140CN Service Manual

1.1

Rewriting the Firmware (Sub Firmware, Main Firmware)

The following two methods are available for rewriting the firmware (Sub firmware and Main firmware).
- Rewriting using a computer
- Rewriting using USB flash memory
1.1.1

Checking firmware version

Check if the firmware written on the main PCB ASSY is the latest version or not. If it is the
latest version, there is no need to write the firmware.If it is not, make sure to write the firmware
to the main PCB ASSY in accordance with "1.1.2 Rewriting the firmware using computer "or
"1.1.3 Rewriting the firmware using USB flash memory" in this
<How to check firmware version>
Press the or
"MAINTENANCE 25" and press the OK button. Then, the firmware version information is
displayed on the LCD.
Memo
You can check the firmware version of the Sub firmware and the Main firmware by printing
the Printer Settings. (Refer to
1.1.2

Rewriting the firmware using computer

Note:
- It is recommendable to rewrite 1) Sub firmware and 2) Main firmware in this order.
- DO NOT unplug the power cord of the printer or your computer or disconnect the USB
cable while rewriting the program files.
<Procedures>
(1) Turn the power switch of the printer off. Then, turn it on while pressing the Go and
Cancel buttons at the same time. Check that "
(2) Connect the computer to the printer with the USB cable.
(3) Double-click the "FILEDG32.EXE" to start. The following screen appears. Select the
"Brother Maintenance USB Printer."
(4) Drag and drop a program file that you want to rewrite (for instance, LZXXXX_$.upd) onto
the Brother Maintenance USB Printer icon in the screen shown above.
Note:
After rewriting Sub firmware or Main firmware is completed, the printer returns to the
ready state. To continue rewriting the other program files, turn off the power switch of
the printer, and turn it on again while pressing the Go and Cancel buttons at the same
time. Check that "
(5) Upon completion of rewriting, the printer restarts and returns to the ready state
automatically.
(6) Disconnect the USB cable from the printer.
button in the initial state of the maintenance mode to display
"2.4 Printout of Printer Settings" in Chapter
" appears on the LCD and start rewriting.
4-2
chapter.
5.)
" appears on the LCD.
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