Brother MFC-J4335DW User Manual

Home > Troubleshooting > If You Are Having Difficulty with Your Machine > Telephone and Fax
Problems > Telephone Line Interference/VoIP
Telephone Line Interference/VoIP
If you are having problems sending or receiving a fax due to possible interference on the telephone line or if you
are using a VoIP system, we recommend changing the modem speed to minimize errors in fax operations.
>> MFC-J4335DW/MFC-J4345DW
>> MFC-J4535DW
MFC-J4335DW/MFC-J4345DW
1. Press Settings.
2. Press a or b to make your selections:
a. Select [Initial Setup]. Press OK.
b. Select [Compatibility]. Press OK.
c. Select [Normal] or [Basic(for VoIP)]. Press OK.
• [Basic(for VoIP)] reduces the modem speed to 9,600 bps and turns off color fax receiving and
Error Correction Mode (ECM), except for color fax-sending. Unless interference is a recurring problem
on your telephone line, you may prefer to use it only when needed.
To improve compatibility with most VoIP services, Brother recommends changing the compatibility
setting to [Basic(for VoIP)].
• [Normal] sets the modem speed at 14,400 bps.
3. Press Stop/Exit.
• VoIP (Voice over IP) is a type of phone system that uses an Internet connection, rather than a traditional
phone line.
MFC-J4535DW
1. Press [Settings] > [All Settings] > [Initial Setup] > [Compatibility].
2. Press the option you want.
• [Basic(for VoIP)] reduces the modem speed to 9,600 bps and turns off color fax receiving and Error
Correction Mode (ECM), except for color fax-sending. Unless interference is a recurring problem on your
telephone line, you may prefer to use it only when needed.
To improve compatibility with most VoIP services, Brother recommends changing the compatibility setting
to [Basic(for VoIP)].
• [Normal] sets the modem speed at 14,400 bps.
3. Press
.
• VoIP (Voice over IP) is a type of phone system that uses an Internet connection, rather than a traditional
phone line.
Related Information
• Telephone and Fax Problems
Related Topics:
• Voice Over Internet Protocol (VoIP/Telephone Line Interference)
• Error and Maintenance Messages
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Brother MFC-J4335DW Specifications

General

Duplex printing	Yes
Print technology	Inkjet
Resolution color	1200 x 600 DPI
Maximum resolution	1200 x 4800 DPI
Print resolution black	1200 x 1200 DPI
Print speed (black, normal quality, A4/US Letter)	- ppm
Ethernet LAN	No
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Mobile printing technologies	Apple AirPrint, Brother iPrint & Scan, Mopria Print Service
Total input capacity	150 sheets
Total output capacity	100 sheets
Total number of input trays	-
Auto document feeder (ADF) input capacity	20 sheets
Copier resize	25 - 400 %
N-in-1 copy function (N=)	2, 4
Fax memory	170 pages
Modem speed	14.4 Kbit/s
Scan to	Cloud, E-mail, File, OCR, PC
Scan drivers	TWAIN
Scanner type	Flatbed & ADF scanner
Scan speed (black)	17 ppm
Scan speed (color)	7 ppm
Image formats supported	JPEG, JPG
Maximum scan resolution	19200 x 19200 DPI
Document formats supported	PDF
Optical scanning resolution	1200 x 2400 DPI
Power consumption (off)	0.2 W
Power consumption (ready)	3.5 W
Power consumption (sleep)	1.2 W
Power consumption (average operating)	21 W
Display	LCD
Product color	White
Display diagonal	1.8 \
Market positioning	Home & office
Internal memory	128 MB
Sound pressure level (printing)	53 dB
Sustainability certificates	Blue Angel
Printing colors	Black, Cyan, Magenta, Yellow
Duplex functions	Print
Maximum duty cycle	30000 pages per month
Recommended duty cycle	250 - 2000 pages per month
Number of print cartridges	4
Mac operating systems supported	Mac OS X 10.11 El Capitan, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina
Server operating systems supported	Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
Windows operating systems supported	Windows 10, Windows 7, Windows 8, Windows 8.1
Envelopes sizes	DL
Paper tray media types	Envelopes, Glossy paper, Plain paper, Recycled paper
Paper tray media weight	64 - 220 g/m²
Non-ISO print media sizes	Executive (184 x 267mm), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5
Maximum ISO A-series paper size	A4
Package depth	242 mm
Package width	495 mm
Package height	455 mm
Package weight	10700 g
Harmonized System (HS) code	84433100

Weight and Dimensions

Depth	343 mm
Width	435 mm
Height	180 mm
Weight	8800 g