Brother HL-6050 Service Manual page 292

CHAPTER 7 SERVICE SUPPORT SOFTWARE
2. Controller firmware (ROM 1)
(AVA file)
NOTE:
Rewriting firmware by AVA file is prepared for the case rewriting firmware by BLF file failed.
Therefore, rewriting firmware by BLF file is recommended unless the above happened. In
particular, use AVA file to rewrite firmware when [Get firmware] appears on the LCD when you
turn on the printer.
Things to prepare (Addition to the "Things to prepare" of BLF file)
<Hardware-related>
(1) parallel cable
<Software-related>
(2) Firmware : LZ0173_$.AVA (Main firmware) *4
*4
LZ0173_$.AVA
Download and extract the necessary firmware from "ROM/Firmware DB", then copy it to the
"AML" folder created in C drive.
(1) Install USB drivers for HL-6050 and HL-6050D to the computer to use for rewriting
firmware from the enclosed CD. Follow the window procedure to install the targeted
printer driver. Specify LPT1 for port. Do not forget to set this printer as the default
printer.
(2) Connect the parallel cable to the printer, then turn the printer on while pressing SET
and BACK key.
[PRL ->ROM0
press SET key.
Check [Send AVAL file] appears on LCD.
(3) Double click "FILEDG32", which is in the "AML" folder. Right click the icon of the target
printer and open "Change port" to check the current port is LPT1. Then, drug and drop
the firmware, LZ0173-$.AVA, to the printer icon in FILEDG32.
Data is sent to the printer via the parallel cable and firmware rewriting starts. While the
data is sent to the printer, DATA LED blinks and when firmware rewriting starts, LED
display changes.
Even if transfer command is completed, the data is still transmitted or the rewriting
procedure continues. Therefore, be sure NOT to shut down the Windows system, turn
the printer off, unplug the cable, or turn the computer off until it reaches to the condition
of step (4). Rewriting may be impossible once the writing procedure fails.
(4) When rewriting finishes, [....Complete....] appears on LCD. Turn OFF and ON the
printer after this message appears.
(5) Refer to "Controller firmware (ROM 0)" for setting with PIT3.
$ = Indicates the revision of the firmware
Ex) LZ0173_A.BLF = Main firmware of HL-6050/D/DN (Version A)
W] appears on LCD. Select [PRL ->ROM1
7-26
W] with +/ - keys, then