Brother MFC-9420CN Service Manual

App. 2-7 Confidential
Writing the update programs/data onto the flash ROM of the machine
After the installation procedure of the printer driver, proceed to the firmware writing operation.
If the printer driver has been installed so that you start from writing firmware, unplug the power
cord from the electrical outlet.
While holding down the 5 key, plug the power cord into an electrical outlet.
NOTE: Never unplug the machine's or PC's power cord or the USB cable during writing.
(1) Run "FILEDG32.exe."
The Filedrgs window will appear as shown below.
(2) Drag and drop the firmware (e.g., LZ0023_A.upd) onto the BHL2-Maintenance Printer icon in
the Filedrgs window shown above.
NOTE: Use a firmware file after extracting. It is a self-extracting file having the
extension .exe. Double-click the exe file to extract it.
When writing operation starts, the machine beeps intermittently. After approx. 2 to 5 minutes,
the writing operation is complete and the machine automatically reboots and returns to the
standby state.
(3) Press the * and # keys at the same time when the machine is on standby. The firmware
version appears on the LCD.
NOTE: The latest firmware will display its version on the LCD by pressing the Stop and
key at the same time.
(4) If downloading finishes abnormally, turn the machine off and on. The machine automatically
enters the write mode and emits a large beep. Perform the writing procedure above again.

Brother MFC-9420CN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 2400 DPI
Economical printing	Yes
Print speed (black, normal quality, A4/US Letter)	31 ppm
Print speed (color, normal quality, A4/US Letter)	8 ppm
Digital sender	No
Number of print cartridges	4
Scanner type	Flatbed scanner
Scanner features	Scan to: e-mail, image, OCR, file
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
Copy speed (black, normal quality, A4)	31 cpm
Copy speed (color, normal quality, A4)	8 cpm
Faxing	Color faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	200
Total input capacity	750 sheets
Maximum input capacity	250 sheets
Auto document feeder (ADF) input capacity	35 sheets
Maximum internal memory	576 MB
Bundled software	ScanSoft PaperPort Presto! PageManager
I/O ports	IEEE-1284 USB 2.0
Dimensions (WxDxH)	483.5 x 514 x 530 mm
Printer management	BRAdmin Professional, MIB-II
Networking features	10Base-T/100Base-TX
All-in-one functions	Fax, Scan
Color all-in-one functions	copy, fax, print, scan
Compatible operating systems	Windows 98(SE)/ Me/ NT WorkStation 4.0/ 2000 Professional/ XP Mac OS 9.1 - 9.2, Mac OS X 10.2.4+
Sustainability certificates	ENERGY STAR
Power consumption (standby)	85 W
Power consumption (PowerSave)	16 W
Power consumption (average operating)	1090 W
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %
Market positioning	Business