Brother HL-5240 Service Manual page 282

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,
REQUIRED AFTER PARTS REPLACEMENT
<Procedures>
After the installation procedure of the printer driver is completed, refer to the following steps
for the detailed procedures to rewrite the firmware.
Rewriting the firmware (ROM) of the printer
(HL-5240/5250DN)
1) Connect the PC and printer with the USB cable.
2) Turn the power supply of the printer on while holding down the Go button and the Job
Cancel button. Make sure that all LEDs are on. The Status LED lights up when
releasing the Go button and the Job Cancel button.* Press the Go button for five times
(ROM 0) or six times (ROM 1). A few seconds later, the printer goes into the ROM
rewriting mode.
* The printer goes back to the normal mode automatically when the printer remains no
operation while the Status LED is lighting.
3) Start the PC.
4) Open the "hl5200" folder and double-click the FILEDG32 icon to start. Make sure that
there is the "kensa" icon, and that no error occurs.
5) Click the "kensa" icon in FILEDG32 to select.
6) Drag the firmware (LZ.........) in the same folder and drop it onto the icon of the applicable
model in FILEDG32.
The files in the firmware are sent to the printer so that they are started to write into the
flash ROM automatically. After finishing receiving the files, the printer starts to rewrite the
firmware.
7) The Status LED blinks irregularly while the firmware being written. Then, be sure not to
disconnect the USB cable or to turn off the power supply of the PC before all LEDs are
ON to indicate that this firmware rewriting is done.
8) Turn the power supply of the printer off.
NOTE:
If the error related to the BLF file or the printer occurs, the red Status LED lights up.
Fig. 6-1
6-6
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