[3.2] If The Main Pcb Loaded With Programs Is Used; To Load Programs From The Pc - Brother MFC990CW Service Manual

[3.2] If the main PCB loaded with programs is used (Updating existing programs)
The current main PCB (not replaced) or the main PCB replaced with the one used for any
other machine has been loaded with programs, so update existing programs using the
procedure given below.
Unplug the power cord from the electrical outlet and make sure that the machine is
connected with your PC using a USB cable.
Models with numerical keypad on the control panel: While holding down the 5 key, plug
the power cord into an electrical outlet.
Models without numerical keypad on the control panel: While holding down the Scan key,
plug the power cord into an electrical outlet.
Then press the Mono Start key (Black Start key).
The black and white pattern appears on the LCD as shown on the previous page. The
machine is ready to receive programs or data for firmware installation from the connected
PC.

To load programs from the PC

(1) On your PC, run "filedg32.exe."
The Filedrgs window will appear as shown below.
(2) Drag and drop the firmware (e.g., lz0023_a.pmu) onto the Brother Maintenance USB
Printer driver icon in the Filedrgs window shown above.
Note: To use a firmware file, extract it beforehand by double-clicking. It is a self-
extracting file having the extension .exe.
After approx. 2 to 5 minutes, the loading operation is complete and the machine
automatically reboots and returns to the standby state.
App. 2-7 Confidential