Brother HL-L8250CDN Service Manual page 271

1.1.2 Installing the firmware
■
Installing the firmware using USB flash memory
Memo:
- Installing the firmware using a USB flash memory is not possible in deep sleep mode.
Open and close the front cover, etc. to quit the deep sleep mode before installing the
firmware.
- Install the Sub firmware, Panel firmware, Main firmware, and High-voltage firmware in this
order. (The Panel firmware is available only for the models with a touch panel.)
- Never disconnect the AC cord of the machine or computer, or the USB flash memory
during installing.
- If installing the firmware using a USB flash memory fails and an error message is
displayed on the LCD or no characters are displayed on the LCD, install the firmware
using a computer referring to
<Operating procedure>
Model without touch panel
(1) Save the program files (such as
LZXXXX_$.djf) which are necessary for
installing the firmware to the USB flash
memory.
(2) While the machine is in the ready state,
connect the USB flash memory drive to
the USB direct interface on the front of
the machine.
(3) When the machine detects the USB
flash memory, the program names are
displayed on the LCD. Press the
key to select the program name that
you want to install.
(4) Press the Go key to start installing.
(5) When installation is completed, the
machine automatically restarts.
(6) Repeat steps (3) to (4) to install
necessary firmware.
(7) When all firmware installation has been
completed, remove the USB flash
memory from the USB direct interface.
"■ Installing the firmware using computer" in this
Model with touch panel
(1) Save the program files (such as
LZXXXX_$.djf) which are necessary for
installing the firmware to the USB flash
memory.
(2) While the machine is in the ready state,
connect the USB flash memory drive to
the USB direct interface on the front of
the machine.
(3) When the machine detects the USB
flash memory, the program names are
or displayed on the LCD. Press the
that you want to install.
(4) Press the program name that you want
to install on the LCD to start installing.
(5) When installation is completed, the
machine automatically restarts.
(6) Repeat steps (3) to (4) to install
necessary firmware.
(7) When all firmware installation has been
completed, remove the USB flash
memory from the USB direct interface.
4-3
key to display the program name
chapter.
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