Brother FAX-2840 User Manual

Troubleshooting
99
B
Setting Dial Tone detection B
When you send a fax automatically, by
default your machine will wait for a fixed
amount of time before it starts to dial the
number. By changing the Dial Tone setting to
Detection you can make your machine dial as
soon as it detects a dial tone. This setting can
save a small amount of time when sending a
fax to many different numbers. If you change
the setting and start having problems with
dialling you should change back to the default
No Detection setting.
a Press Menu, 0, 5.
b Press a or b to choose Detection or
No Detection.
Press OK.
c Press Stop/Exit.
Telephone line interference/
VoIP B
If you are having difficulty sending or
receiving a fax due to possible interference
on the telephone line, we recommend that
you adjust the equalization for compatibility to
reduce the modem speed for fax operations.
a Press Menu, 2, 0, 1.
b Press a or b to choose High, Normal or
Basic(for VoIP).
 Basic(for VoIP) cuts the modem
speed to 9600 bps. When you
change the Compatibility to
Basic(for VoIP), the ECM
feature is only available for fax
sending.
For a standard telephone line: If you
regularly experience interference on
your standard telephone line try this
setting.
If you are using VoIP: VoIP service
providers offer fax support using
various standards. If you regularly
experience fax transmission errors
try this setting.
 Normal sets the modem speed at
14400 bps.
 High sets the modem speed at
33600 bps.
Press OK.
c Press Stop/Exit.
Note
VoIP (Voice over IP) is a type of phone
system that uses an Internet connection,
rather than a traditional phone line.

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