Brother FAX-2840 Service Manual

4-1
Confidential
1. IF YOU REPLACE THE MAIN PCB ASSY
<What to do after replacement>
• Rewriting the firmware (main firmware, demo firmware)
• Initialization of EEPROM of main PCB ASSY (function code: 01)
• Setting by country (function code: 74)
• Entering the adjusted value of the laser unit
• Setting the serial number
• Acquisition of white level data (function code: 55)
• Operational check of sensors (function code: 32)
 What you need to prepare
(1) One USB cable
(2) Create a temporary folder on the C drive of the computer (Windows
®
XP/2000 or
higher).
(3) Service setting tool (Brusbn.zip)
Copy it into the temporary folder created on the C drive. Extract the copied file and
double-click the "Brusbsn.exe" file to start it.
(4) Download utility (FILEDG32.EXE)
Copy it into the temporary folder created on the C drive.
(5) Brother maintenance USB printer driver (Maintenance_Driver.zip)
Copy it into the temporary folder created on the C drive. Extract the copied file.
(6) Firmware
* upd: Used to rewrite the firmware via a computer.
(7) Installing the maintenance driver (Refer to "APPENDIX 3 INSTALLING MAINTENANCE
DRIVER".)
Note:
• Since the counters are reset when the main PCB ASSY is replaced, the consumables
and/or periodical replacement parts may reach the end of life before the message is
displayed.
Main firmware LZXXXX_$.upd *
Demo firmware LZXXXX_$.upd *
(E.g.) LZXXXX: First six digits of the part number of the firmware
$: Alphabetic character representing the revision version of the firmware

Brother FAX-2840 Specifications

General

Group dial	8
Modem speed	33.6 Kbit/s
Color faxing	No
One-touch dials	22
Print technology	Laser
Fax compatibility	ITU-T G3
Fax coding methods	JBIG, MH, MMR (Fax coding method), MR
Fax resolution modes	Fine, Photo, Standard, Super Fine
Fax transmission speed	2.5 sec/page
Out-of-paper reception	400 pages
Error Correction Mode (ECM)	Yes
Fax speed dialing (max numbers)	200
Copier resize	25 - 400 %
Grayscale levels	256
Maximum copy resolution	300 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4
Copy speed (black, normal quality, A4)	20 cpm
Standard input capacity	250 sheets
Standard output capacity	100 sheets
Auto document feeder (ADF) input capacity	20 sheets
Supported media weight(s)	60 - 105 g/m²
Maximum standard media size	A4
ISO A-series sizes (A0...A9)	A4, A5, A6
Display number of lines	2 lines
Display number of characters	16
Processor family	ARM9
Processor frequency	200 MHz
Maximum internal memory	16 MB
Product color	Black, Grey
Sustainability certificates	ENERGY STAR
Noise level	53 dB
Noise level (idle)	30 dB
AC input voltage	220-240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	55 W
Power consumption (typical)	365 W
Power consumption (PowerSave)	1.5 W
Package weight	12900 g

Weight and Dimensions

Weight	9000 g
Dimensions (WxDxH)	368 x 360 x 311 mm