Brother MFC-9840CDW Service Manual

Confidential
4-11
2. IF YOU REPLACE THE ENGINE PCB
< What to do when replacing the engine PCB >
Rewriting the Firmware (Engine Firmware)
Performing the Color Calibration
Performing the Auto Registration
< Which parts to use >
- Engine PCB: The table below shows the ROM type.
Flash ROM 0 (512 Kbyte): Engine firmware
< What you need to prepare >
(1) Computer (Windows

XP/2000)
Create a folder on the C drive, for example: - (AC FIRMWARE)
(2) A USB flash memory drive
(3) The firmware
Engine firmware:
LZ0833_A.djf
LZXXXX_$.djf
LZXXXX: First six digits are a parts number of the firmware.
$: Alphabet representing the revision of the
firmware.
< Procedures >
Rewriting the Firmware (Engine Firmware)
- How to rewrite the firmware by using the USB flash memory drive
Note:
- Make sure that the USB flash memory drive has enough space to save the program file.
- If you want to print an index of the files, choose “Index Print”. The “Index Print” selection
can be found after you scroll down through all the file names. Press the OK button.
(1) Save the necessary program file (Engine firmware) to rewrite it into the USB flash
memory drive.
(2) Connect the USB flash memory drive to the USB direct Interface on the front of the
machine.
Fig. 4-2

Brother MFC-9840CDW Specifications

General

Print technology	Laser
Maximum resolution	600 x 2400 DPI
Economical printing	Yes
Time to first page (black, normal)	16 s
Time to first page (color, normal)	17 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Scan to	E-mail, FTP, OCR, USB
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	4, 9, 16, 25
Copy speed (black, normal quality, A4)	16 cpm
Faxing	Mono faxing
Fax memory	400 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	128 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	54.5 dB
Custom media sizes	(69.9 - 216mm) - (116 - 406.4mm)
Dimensions (WxDxH)	530 x 539 x 520 mm
Networking features	10/100Base-TX
Wireless technology	IEEE 802.11b/g
All-in-one functions	Copy, Fax, Scan
Maximum internal memory	0.640 GB
Color all-in-one functions	copy, print, scan
Media weight (tray 1)	60 - 105g/m2
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Security algorithms	LEAP
Supported network protocols (IPv4)	TCP/IP (IPv4 & IPv6)
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Bundled software	ScanSoft PaperPort (Win) NewSoft Presto! PageManager (Mac)
Power consumption (PowerSave)	36 W
Power consumption (average operating)	515, 100 W
Package weight	45800 g
Digital sender	No
Maximum duty cycle	3000 pages per month
Market positioning	Business