Brother MFC-J3520 Installation and operating manual

1
How to use this guide: 1
1 Read the whole guide before using your machine and keep it for later reference. Please keep
these instructions for later reference.
2 Carefully follow the instructions set out in this guide and always ensure that you follow all
warnings and instructions marked on the product.
3 If you have concerns about how to use your machine after reading this guide, please contact
Brother customer service or your local Brother dealer.
4 To ensure you understand all of the instructions, study the Symbols and Conventions used in the
documentation.
Product Safety Guide 1
MFC-J3520/J3720
Brother Industries, Ltd.
15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan
Please read this booklet before attempting to operate the machine, or before attempting any
maintenance. Failure to follow these instructions may result in an increased risk of fire, electrical
shock, burns or suffocation. Brother shall not be liable for damage caused where the product
owner has failed to follow instructions set out in this guide.
Version 0
CHN-ENG

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Symbols and conventions used in the
documentation 1
The following symbols and conventions are used throughout the documentation.
Follow all warnings and instructions marked on the machine.
NOTE
The illustrations in this guide show the
MFC-J3720.
WARNING
WARNING indicates a potentially
hazardous situation which, if not avoided,
could result in death or serious injuries.
CAUTION
CAUTION indicates a potentially hazardous
situation which, if not avoided, may result in
minor or moderate injuries.
IMPORTANT
IMPORTANT indicates a potentially
hazardous situation which, if not avoided,
may result in damage to property or loss of
product functionality.
NOTE
Notes tell you how to respond to a situation
that may arise or give tips about how the
operation works with other features.
Prohibition icons indicate actions
that must not be performed.
This icon indicates that flammable
sprays must not be used.
This icon indicates that organic
solvents such as alcohol and liquids
must not be used.
Electrical Hazard icons alert you to
possible electrical shocks.
Fire Hazard icons alert you to the
possibility of a fire.
Bold Bold typeface identifies the dial
pad numbers of the
Touchpanel and buttons on
your computer screen.
Italics Italicized typeface emphasizes
an important point or refers you
to a related topic.
Courier
New
Text in the Courier New font
identifies messages on the
LCD of the machine.

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Compilation and Publication Notice 1
This manual has been compiled and published to provide the latest product safety information at
the time of publication. The information contained in this manual may be subject to change.
For the latest manual, please visit us at http://solutions.brother.com/.
Use only GENUINE brother supplies
Brother multifunction machines are designed to work ink of a particular specification and work to
a level of optimum performance when used with genuine Brother ink cartridges. Brother cannot
guarantee this optimum performance if ink or ink cartridges of other specifications are used.
Brother does not therefore recommend the use of cartridges other than genuine Brother cartridges
with this machine or the refilling of empty cartridges with ink from other sources. If damage is
caused to the print head or other parts of this machine as a result of the use of ink or ink cartridges
other than genuine Brother products due to the incompatibility or lack of suitability of those
products with this machine, any repairs required as a result will not be covered by the warranty.
Choose a safe location for your machine 1
Put your machine on a flat, stable surface that is free from shocks and vibrations, such as a desk.
Put the machine near a telephone socket and a standard grounded electrical socket. Choose a
dry, well ventilated location where the temperature remains between 10 C and 35 C.

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WARNING
DO NOT expose the machine to direct sunlight, excessive heat, open flames, corrosive gasses,
moisture or dust. DO NOT place your machine on a carpet or rug as this will expose it to dust.
Doing so may create a risk of an electrical short or fire. It may also damage the machine and/or
render it inoperable.
DO NOT place the machine near heaters, air conditioners, water, chemicals or devices that
contain magnets or generate magnetic fields. Doing so may create the risk of a short circuit or
fire should water come into contact with the machine (including condensation caused by heating
systems or air conditioning and ventilation equipment).
DO NOT place the product near chemicals or in a place where chemical spillage could occur. In
particular, organic solvents or liquids may cause the casing and/or cables to melt or dissolve,
risking fire or electric shock. They may also cause the product to malfunction or become
discoloured.
Slots and openings in the casing, back or bottom of the product are provided for ventilation. The
product should be placed so as not to come into contact with any wall or other device so these
openings are not blocked or covered. Blocking the machine’s ventilation could create a risk of
overheating and/or fire.
IMPORTANT
• Always place the machine on a solid surface, never on a bed, sofa, rug, or similar soft
surfaces.
• Do not place this machine in a “built-in” installation.
IMPORTANT
• DO NOT put objects on top of the machine.
• DO NOT place anything in front of the machine that will block printouts. DO NOT place
anything in the path of received faxes.
• DO NOT place your machine next to sources of interference, such as speakers or the base
units of non-Brother cordless telephones. Doing so may interfere with the operation of the
machine’s electronic components.
• DO NOT place the machine on any tilted/slanted surface. DO NOT tip the machine after the
ink cartridges are installed. Doing so may cause ink spillage and internal damage to the
machine.

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General precautions 1
WARNING
Plastic bags are used in the packing of your machine. To avoid danger of suffocation, keep
these plastic bags away from babies and children. Plastic bags are not toys.
For users with pacemakers
This machine generates a weak magnetic field. If you experience any unusual symptoms with your
pacemaker while near the machine, move away from the machine and consult a doctor immediately.
Avoid using this machine during an electrical storm. There may be a remote risk of electric shock
from lightning.
DO NOT use flammable substances, any type of spray, or an organic solvent/liquid that contains
alcohol or ammonia to clean the inside or outside of the machine. Doing this may cause a fire
or electrical shock.
CAUTION
Do not try and pick up pages until they have finished printing and are ejected from the machine.
Doing this may cause you injury by trapping your fingers in the rollers.
If the tray has been extended to hold large paper such as A3, Legal or Ledger size paper,
position the machine so that the tray does not protrude past the edge of the table or desk. If
someone hits the tray, the machine could fall and cause injury.

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Some areas of the machine can cause injury if covers (shaded) are closed with force. Take care
when placing your hand in the areas shown in the illustrations.
When adjusting the tray size from A3, Legal or Ledger to the original size, take care not to pinch
your fingers in the gaps or slots at the bottom of the tray to avoid injury.

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DO NOT touch the area shaded in the illustration. Doing so may cause injury to your fingers by
cutting them on the edge of the machine.
(MFC-J3720)
To prevent injuries when moving or lifting this machine, make sure to use at least two people.
Be careful not to pinch your fingers when you set the machine back down.
DO NOT carry the machine by holding the lower tray when it is installed. The lower tray could
fall and cause injury to you.

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DO NOT carry the machine by holding the scanner cover, the Jam Clear Cover, manual feed
slot cover or control panel. Doing so may cause the machine to slip out of your hands.
Carry the machine by sliding your hands into the handhold indentations located on each side of
the machine.
(MFC-J3520)

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When carrying the machine, remove the tray if it has been extended to hold large paper such as
A3, Legal or ledger size paper. The weight of the paper could cause the tray to fall and cause
injury to you.
Do not remove the serial number and instruction labels that are affixed to the machine.
IMPORTANT
Disruption of power can wipe out information in the machine’s memory.
(MFC-J3520)

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Connecting the machine safely 1
WARNING
There are high-voltage electrodes inside the machine. Before you access the inside of the
machine, including for routine maintenance such as cleaning, make sure you have unplugged
the power cord from the electrical socket as well as any telephone (RJ-11) or Ethernet cables
from the machine.
DO NOT handle the plug with wet hands. Doing so may cause an electrical shock.
Always make sure the plug is fully inserted.
This machine should be connected to an adjacent grounded AC power source within the range
indicated on the rating label. DO NOT connect it to a DC power source or inverter. Doing so may
cause an electrical shock. If you are not sure what kind of power source you have, contact a
qualified electrician.

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This machine is equipped with a 3-wire grounded plug. This plug will only fit into a grounded
power outlet. This is a safety feature. If you are unable to insert the plug into the outlet, call your
electrician to replace your obsolete outlet. DO NOT use the supplied grounded plug in any other
outlet except those specified. Doing so may cause an electrical shock.
Never touch telephone wires or terminals that are not insulated unless the telephone line has
been unplugged at the wall socket. Never install telephone wiring during a lightning storm. Never
install a telephone wall socket in a wet location. Doing so may cause an electrical shock.
DO NOT use the machine if the power cord is frayed or damaged. Doing so may cause an
electrical shock or fire.
DO NOT pull on the middle of the AC power cord. DO NOT allow anything to rest on the power
cord. DO NOT place this machine where people may step on the cord. Doing so may cause an
electrical shock or fire.
Brother strongly recommends that you DO NOT use any type of extension cord.

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Servicing the machine 1
DO NOT attempt to service this machine yourself. Opening or removing covers may expose you
to dangerous voltages and other risks, and may void your warranty. If you experience any
problems with your machine, contact Brother customer service or your local Brother dealer.
WARNING
If the product has been dropped or the casing has been damaged, there may be the possibility
of an electric shock. Unplug the machine from the power socket and call Brother customer
service or your local Brother dealer.
CAUTION
If the machine becomes unusually hot, releases smoke, generates any strong smells, or if you
accidentally spill any liquid on it, immediately unplug the machine from the electrical socket. Call
Brother customer service or your local Brother dealer.
IMPORTANT
If the machine does not operate normally when the operating instructions are followed, adjust
only those controls that are covered by the operating instructions. Incorrect adjustment of other
controls may result in damage and will often require extensive work by a qualified technician
to restore the machine to normal operation.

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Important Safety Instructions 1
1 Read all of these instructions.
2 Save them for later reference.
3 Follow all warnings and instructions marked on the product.
4 Unplug this product from the wall outlet before cleaning the outside of the machine and the
scanner glass. Do not use liquid or aerosol cleaners. Use a damp cloth for cleaning.
5 Do not place this product near water.
6 Do not place this product on an unstable cart, stand, or table. The product may drop, causing
serious damage to the product.
7 Slots and openings in the cabinet and the back or bottom are provided for ventilation; to ensure
reliable operation of the product and to protect it from overheating, these openings must not
be blocked or covered. The openings should never be blocked by placing the product on a bed,
sofa, rug, or other similar surface. This product should never be placed near or on a radiator
or heater. This product should never be placed in a built-in installation unless proper ventilation
is provided.
8 This product should be connected to an AC power source within the range indicated on the
rating label. Do not connect it to a DC power source. If you are not sure, contact a qualified
electrician.
9 This product is equipped with a 3-wire grounding type plug, a plug having three pins. This plug
will only fit into a grounding-type power outlet. This is a safety feature. If you are unable to
insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not
defeat the purpose of the grounding-type plug.
10 Do not place anything on top of the power cord including this machine. Do not allow the power
cord to be stepped on.
11 If an extension cord is used with this product, make sure that the total ampere ratings on the
products plugged into the extension cord do not exceed the extension cord ampere rating.
12 Do not place anything in front of the machine that will block printouts. Do not place anything in
the path of received faxes.
13 Do not touch a document during printing.
14 Never push objects of any kind into this product through cabinet slots, since they may touch
dangerous voltage points or short out parts resulting in the risk of fire or electric shock. Never
spill liquid of any kind on the product.
15 Do not attempt to service this product yourself. Opening or removing covers may expose you
to dangerous voltage points and/or other risks, and may void your warranty. Please refer all
servicing to our Authorized Service Personnel. A list of Authorized Service Centres has been
included for your convenience, or you may contact the Brother Dealer for Service.

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16 Unplug this product from the wall outlet and refer servicing to Authorized Service Personnel
under the following conditions:
If the power cord is damaged or frayed.
If the product has been spilled by liquid.
If the product has been exposed to rain or water.
If the product does not operate normally when the operating instructions are followed.
Adjust only those controls that are covered by the operating instructions. Improper
adjustment of other controls may result in damage and will often require extensive work by
a qualified technician to restore the product to normal operation.
If the product has been dropped or the cabinet has been damaged.
If the product exhibits a distinct change in performance, indicating a need for service.
Product Warranty & Liability 1
Nothing in this guide shall affect any existing product warranty or be construed as granting any
additional product warranty. Failure to follow the safety instructions in this guide may invalidate
your product’s warranty.
WARNING
DO NOT use this machine near water, for example, near a bath tub, wash bowl, kitchen sink or
washing machine, in a wet basement or near a swimming pool.
Avoid using this machine during an electrical storm. There may be a remote risk of electric shock
from lightning.
DO NOT use this machine to report a gas leak in the vicinity of the leak.
Only use the power cord supplied with this machine.
This product must be installed near an electrical socket that is easily accessible. In case of an
emergency, you must unplug the power cord from the electrical socket to shut off the power completely.

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Approval Information 1
THIS EQUIPMENT IS DESIGNED TO WORK WITH A TWO WIRE ANALOGUE PSTN LINE
FITTED WITH THE APPROPRIATE CONNECTOR.
Brother advises that this product may not function correctly in a country other than where it was
originally purchased, and does not offer any warranty in the event that this product is used on
public telecommunication lines in another country.
LAN connection 1
IMPORTANT
DO NOT connect this machine to a LAN connection that is subject to over-voltages.
Radio interference 1
This product complies with EN55022 (CISPR Publication 22)/Class B. When connecting the
machine to a computer, ensure that you use a USB cable which does not exceed 2 metres in
length.

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Notes on Using the Wireless LAN Function of the Equipment 1
1 Make sure you use this product within the wireless functional range as below:
Operating frequency: 2.4 - 2.4835 GHz
Equivalent isotropic radiated power (EIRP): ≤100 mW
Maximum power spectral density: ≤20 dBm / MHz (EIRP)
Carrier frequency tolerance: 20 ppm
Out-of-band emission power (Outside the 2.4 to 2.4835 GHz frequency band)
≤-80 dBm / Hz (EIRP)
Spurious emission (radiation) power (Outside the range of the corresponding carrier ± 2.5
times the channel bandwidth):
≤-36 dBm / 100 kHz (30 - 1000 MHz)
≤-33 dBm / 100 kHz (2.4 - 2.4835 GHz)
≤-40 dBm / 1 MHz (3.4 - 3.53 GHz)
≤-40 dBm / 1 MHz (5.725 - 5.85 GHz)
≤-30 dBm / 1 MHz (1 - 12.75 GHz for others)
2 Do not, without appropriate permission, attempt to alter the emission frequency or increase the
emission power (including by installing an additional RF power amplifier), or connect any
external antenna or use any unspecified transmitting antenna.
3 This equipment must not cause harmful interference to other radio services. In case such
interference occurred, the equipment must be stopped immediately and cannot be used until
the appropriate measures are taken to eliminate the harmful interference.
4 This micro-power wireless equipment must accept any interference caused by the legal
operation of other radio services or radiated interference received from the industrial, scientific
and medical appliances.
5 Do not use this equipment anywhere near the plane or airport.

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Trademarks 1
The Brother logo is a registered trademark of Brother Industries, Ltd.
Brother is a trademark of Brother Industries, Ltd.
Microsoft, Windows, Windows NT, Windows Vista, Windows Server, Internet Explorer, Outlook
and PowerPoint are either registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries.
Apple, Macintosh, Mac OS, Safari, iPad, iPhone, iPod touch and OS X are trademarks of Apple
Inc., registered in the United States and other countries.
AirPrint is a trademark of Apple Inc.
Adobe, Illustrator and Reader are either registered trademarks or trademarks of Adobe Systems
Incorporated in the United States and/or other countries.
Memory Stick PRO Duo, Memory Stick Duo, MagicGate, Memory Stick Micro and M2 are
trademarks of Sony Corporation.
The SDHC Logo is a trademark of SD-3C, LLC.
AOSS is a trademark of Buffalo Inc.
Wi-Fi, Wi-Fi Alliance and Wi-Fi Protected Access are registered trademarks of the Wi-Fi Alliance.
WPA, WPA2, Wi-Fi Protected Setup, Wi-Fi Protected Setup logo and Wi-Fi Direct are trademarks
of the Wi-Fi Alliance.
Flickr is a registered trademark of Yahoo! Inc.
Android, Google Cloud Print, Google Drive and Picasa Web Albums are trademarks of Google,
Inc. Use of these trademarks are subject to Google Permissions.
Mozilla and Firefox are registered trademarks of the Mozilla Foundation.
UNIX is a registered trademark of The Open Group in the United States and other countries.
Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.
The Bluetooth word mark is a registered trademark owned by Bluetooth SIG, Inc. and any use of
such marks by Brother Industries, Ltd. is under license.
Intel is a trademark of Intel Corporation in the U.S. and/or other countries.
EVERNOTE and the Evernote Elephant logo are trademarks of Evernote Corporation and used
under a license.
Each company whose software title is mentioned in this manual has a Software License
Agreement specific to its proprietary programs.
Any trade names and product names of companies appearing on Brother products, related
documents and any other materials are all trademarks or registered trademarks of those
respective companies.

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Open Source Licensing Remarks 1
This product includes open-source software.
To see the open source licensing remarks, please go to the manual download selection on your
model’s home page on Brother Solutions Center at http://solutions.brother.com/.
Copyright and License 1
©2014 Brother Industries, Ltd. All rights reserved.
This product includes software developed by the following vendors:
©1983-1998 PACIFIC SOFTWORKS, INC. ALL RIGHTS RESERVED.
©2008 Devicescape Software, Inc. All rights reserved.
This product includes the “KASAGO TCP/IP” software developed by ZUKEN ELMIC, Inc.
Other Information 1
FlashFX®is a registered trademark of Datalight, Inc.
FlashFX®Copyright 1998-2010 Datalight, Inc.
U.S. Patent Office 5,860,082/6,260,156
FlashFX®Pro™ is a trademark of Datalight, Inc.
Reliance™ is a trademark of Datalight, Inc.
Datalight®is a registered trademark of Datalight, Inc.
Copyright 1989-2010 Datalight, Inc., All Rights Reserved

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Unlawful use of copying equipment 1
It is an offence to make reproductions of certain items or documents with the intent to commit
fraud. The following is a non-exhaustive list of documents which it may be unlawful to produce
copies of. We suggest you check with your legal adviser and/or the relevant legal authorities if in
doubt about a particular item or document:
Currency
Bonds or other certificates of debt
Certificates of deposit
Armed forces service or draft papers
Passports
Postage stamps (cancelled or uncancelled)
Immigration papers
Welfare documents
Cheques or drafts drawn by governmental agencies
Identifying badges or insignias
In addition, driving licenses and/or Certificates of Title to motor vehicles may not be copied under
certain national laws.
Copyrighted works cannot be copied lawfully, subject to the “fair dealing” exception relating to
sections of a copyrighted work. Multiple copies would indicate improper use. Works of art should
be considered the equivalent of copyrighted works.

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