Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
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Trademarks
Microsoft, Windows, Windows Vista and Windows Server are either regis ter e d trad em a rks or
trademarks of Microsoft Corporation in the United States and/or other countries.
Macintosh and OS X are trademarks of Apple Inc., registered in the United States and other countries.
Wi-Fi is a registered trademark of Wi-Fi Alliance.
WPA and WPA2 are trademarks of Wi-Fi Alliance.
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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Preface
This Service Manual is intended for use by service personnel and details the specifications,
construction, and maintenance for the Brother machines noted on the front cover. It includes
information required for troubleshooting and ser vice--disassemb ly, reassemb ly, and lubrication-- so that
service personnel will be able to understand equipment function, repair the equipment in a timely
manner and order spare parts as necessary.
To perform appropriate maintenance so that the mach ine is always in the best possible condition for the
customer, service personnel must adequately understand and apply this manual.
The table below shows the functional comparison between the models covered by this manual.
6.1Check head nozzles (Maintenance mode 09).....................................................4-17
6.2Adjustment of software correction for inclination/corrugation/ruled lines
(Maintenance mode 65 / User menu)..................................................................4-17
6.3Updating of paper feeding correction values (Maintenance mode 58 /
User menu)..........................................................................................................4-17
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6.4Adjustment of margins in borderless printing (Maintenance mode 66) ...............4-17
6.5< Only when replacing the Paper feed arm frame ASSY or LT frame ASSY of the
paper remaining sensor model > Disable inter-machine variation calibration for paper
remaining sensor(Maintenance mode 88 <Selector 1 on AMS04>)....................4-17
APPENDIX 1 SERIAL NUMBERING SYSTEM..........................................................App. 1-1
APPENDIX 2 DELETION OF USER SETTING INFORMATION................................App. 2-1
APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER .....................App. 3-1
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SAFETY INFORMATION
WARNING
CAUTION
WARNING indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injuries.
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 machine functionality.
NOTE
NOTE specifies the operating environment, conditions for installation, or special conditions
of use.
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 fire.
Italics
Italicized typeface emphasizes an important point or refers you to a related topic.
NOTE
The illustrations in this guide show MFC-J6930DW.
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To use the machine safely
WARNING
ELECTRICAL HAZARDS
Failure to follow the warnings in this section may create the risk of an electrical shock. In
addition, you could create an electrical short, which may create the risk of a fire.
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 AC power outlet, as well as any telephone/RJ-11 or
Ethernet/RJ-45 cables from the machine.
DO NOT push objects of any kind into this machine through slots or openings in the cabinet, as they may touch dangerous voltage points or short out parts.
DO NOT handle the plug with wet hands.
Always make sure the plug is fully inserted.
Unplug the power plug regularly to clean it. Use a dry cloth to clean the root of the plug
blades and between the blades. If the power plug is plugged into the outlet over a lon g
period, dust accumulates around the plug blades, which may cause a short circuit, resulting
in a fire.
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DO NOT take apart or attempt to convert the machine. This may create a risk of fire or
electrical shock. Such conduct may also be punished by the law.
If the machine has been dropped or the casing has been damaged, there may be the
possibility of an electrical shock. Unplug the machine from the AC power outlet.
DO NOT drop any metallic hardware or any type of liquid on the power plug of the machine.
It may cause an electrical shock or a fire.
If water, other liquids, or metal objects get inside the machine, immediately unplug the
machine from the AC power outlet.
This machine 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 or inverter. If you are not sure what
kind of power source you have, contact a qualified electrician.
Power Cord Safety:
- DO NOT pull on the middle of the AC power cord; pulling on the middle may cause the
cord to separate from the plug. Doing this might cause an electrical shock.
- DO NOT allow anything to rest on the power cord.
- DO NOT place this machine where people can walk on the cord.
- DO NOT place this machine in a position where the cord is stretched or strained, as it may
become worn or frayed.
- DO NOT use the machine or handle the cord if the cord has become worn or frayed. If
unplugging your machine, DO NOT touch the damaged/frayed part.
DO NOT use this machine during an thunderstorm.
Use caution when installing or modifying telephone lines. Never touch telephone wires or
terminals that are not insulated unless the telephone line has been unplugged at the wall
jack. Never install telephone wiring during a lightning storm. Never install a telephone wall
jack in a wet location.
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FIRE HAZARDS
Failure to follow the warnings in this section may create the risk of a fire.
DO NOT use flammable substances, any type of spray, or an organic solvent/liquid
containing alcohol or ammonia to clean the inside or out side of the machine. Doing so could
cause a fire or electrical shock. Instead, use only a dry, lint-free cloth.
DO NOT use the machine near any medical electrical equipment. The radio wave emitted
from the machine may affect medical electrical equipment and cause a malfunction, which
may result in accident or injury.
For users with pacemakers
This machine generates a weak magnetic field. If you feel anything wrong with the opera-
tion of your pacemakers when near the machine, move away from the machine and consult
a doctor immediately.
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 AC power
outlet.
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CAUTION
Wait until pages have exited the machine before picking them up. Failure to do this may
cause injury to your fingers by trapping them in a roller.
DO NOT put your hand or any foreign objects into the ink insertion slot. Doing this may
cause injury.
If the trays have been expanded to hold large p aper such as Ledger, A3, Legal or Folio size
paper, place the machine on a flat surface that can support both the machine and the trays.
When the trays are expanded, they will protrude from the machine. Therefore, if someone
hits the trays, the machine could fall and cause injury.
To prevent injuries, be careful not to put your fingers in the areas shown in the illustrations.
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When changing the tray size from the Ledger , A3 , Legal or Folio size to the original size, be
careful not to pinch your fingers in the gaps or slots in the bottom of the tra y. It may cause
injury to you.
Be careful not to put your fingers in the areas shown in the illustrations. It may cause injury
to you.
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To prevent possible injuries, at least two people should lift the machine. One person should
hold the front of the machine, and one person should hold the back, as shown in the
illustration below.
Carry the machine by sliding your hands into the handhold indentations located on each
side of the machine. Be careful not to trap your fingers when you put the machine 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 areas shown in the illustrations. Doing this may
cause the machine to slip out of your hands and may result in injury.
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When carrying the machine, remove the trays if they have been expanded to ho ld large
paper such as Ledger, A3, Legal or Folio size paper. The weight of the pape r could cause
the trays to fall and cause injury to you.
If the ink contacts your skin or gets into your eye or mouth, please follow these steps
immediately:
- If your skin comes into contact with the ink, wash your skin with water and soap
immediately.
- If the ink gets into your eye, rinse it with water immediately. If left as is, it may cause
redness or mild inflammation of the eye. In case of any abnormality, consult with your
doctor.
- If the ink gets into your mouth, spit it out, rinse your mouth, and consult your doctor
immediately.
- Be careful not to get the ink in your eye when replacing the ink cartridge or refilling ink.
- Keep the ink cartridge or ink bottles out of the reach of children.
- DO NOT shake the ink cartridge. The ink may leak out if the cartridge is shaken or twirled.
- DO NOT take apart the ink cartridge. The cartridge can not be used if it is t a ken apart. The
ink may get in your eye or make contact with your skin if you t ake apart the cartridge.
When multiple devices, including this machine, are connected to a compute r usin g USB
cables, you may feel an electrical charge when you touch meta l part s of the machine. Avoi d
touching them.
IMPORTANT
- Disruption of power can wipe out information in the machine's memory.
- 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.
- DO NOT connect your machine to an AC power outlet controlled by wall switches,
automatic timers or to the same circuit as a large appliance, such as an air conditioner,
copier, shredder, or other eq uipment that requires a significant amount of electricity to
operate. Operating this machine in conjunction with the other machine(s) could create an
overvoltage, tripping your circuit breaker or blowing your fuse ; or migh t disr up t the po we r
supply . Disruption of the power supply may delete information from the machine’s memory
and repeated cycling of the power supply can damage the machine.
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Precautions for Troubleshooting and/or Disassembly/Assembly
Be sure to observe the following warnings and precautions to prevent any secondary troubles
from happening by mishandling the machine during troubleshooting and/or disassembly/
assembly.
Precautions
Be sure to observe the following to prevent any secondary troubles from happening duri ng
troubleshooting and/or disassembly/assembly.
(1) Power cord must be removed from their outlet s befo re st arting any remo val of covers and
PCBs, adjustments and conductivity test using a tester.
(2) Be careful not to lose screws, washers, or other parts.
(3) Apply grease to the points specified in
(4) When using soldering irons and other heat-generating tools, take care not to damage the
plastic parts such as wires, PCBs, and covers.
(5) When disconnecting the connectors, hold the connector housings. Do not pull the lead wires.
(6) After disconnecting flat cables, check that each cable is not damaged at its end or
shortcircuited.
(7) When connecting flat cables, do not insert them at an angle. After insertion, check again
that the cables are not at an angle.
(8) When connecting or disconnecting harnesses, hold the connector bodies not the cables.
If the connector has a lock, always unlock it.
(9) After repairs, check not only the repaired portion but also that the harnesses are routed
properly. Also check that the other related portions function properly.
(10)Static electricity charged in your body may damage electronic parts.
Before handling the PCBs, touch a metal portion of the machine to discharge static
electricity charged in your body. When transporting PCBs, be sure to wrap them in
conductive sheets.
When replacing the PCBs, put on a grounding wrist band and perform the job on a
conductive mat.
Also take care not to touch the conductor sections on the flat cables.
(11) Once the head/carriage unit prints, it will start head locking operation after five seconds
from the end of printing. The head locking operation will take five to ten seconds. NEVER
unplug the power cord before the machine completes the head locking operation; doing
so will make the head/carriage unit unusable and require replacement with a new head/
carriage unit. When you receive the machine from the user or when you pack it for
sending it back to the user, check the head locking state.
(12)If ink gets on your skin or gets into your eyes or mouth, you need the following treatment.
- If ink gets on your skin, wash it off immediately with soap and water.
Chapter 3.
- If ink gets into your eyes, flush them immediately and thoroughly with water. If left
untreated, the eyes may become bloodshot or mildly inflamed. If you feel any discomfort,
consult a doctor immediately.
- If ink gets into your mouth, immediately spit it out and consult a doctor.
(13)Be sure to observe the warnings.
(14)After completion of reassembly, it is recommended that the dielectric voltage withstand
test and continuity test be conducted.
(15) After repairing the defective section, be sure to check again if the repaired section works
correctly.
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(16)Before packing the machine for sending it back to the user after repairs, be sure to clean
Cleaner stick
Flushing guide
Flushing base
the flushing guide with a cleaner stick as shown below to prevent ink splashing during
transportation.
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CHAPTER 1SPECIFICATIONS
This chapter lists the specifications of each model, which enables you to make a comparison
of different models.
1GENERAL
1.1General
Model
Print Head
Minimum
Droplet Size
Scanning
Method
CPU Speed576 MHz
Backup
Clock
HL-J6000DW/
J6100DW
BHS13plus
Head
BK/C/M/Y:
420/420/420/
420 nozzles
BK: 4 pl
CMY: 1.5 pl
HL-T4000DW
BHM17HT
Head
BK/C/M/Y:
420/420/420/
420 nozzles
BK: 3 pl
CMY: 1.5 pl
N/ACIS
MFC-J3530DW/J3930DW/J6530DW/J6535DW/J6545DW/
J6730DW/J6930DW/J6935DW/J6945DW/J6947DW
BHS13plus Head
BK/C/M/Y: 420/420/420/420 nozzles
Yes (Up to 1 hour)
1.2Media Specification
ModelHL-J6000DWHL-J6100DW HL-T4000DW
*1
N/A
*1
, LGL, Folio, A4, LTR, EXE, A5,
N/A
Standard Tray
Lower Tray
3rd Tray
Media
Sizes
*1
*2
Manual Feed Slot
MP Tray
Duplex Print
ADF (width/length)N/A
Scanner Glass
(width/length)
Only for Taiwan/China
Only for China
<Landscape> A4, LTR, EXE, B5 (JIS)
<Portrait> A3, LGR, B4 (JIS)*1, LGL, Folio, A5, B6 (JIS)*1, A6, Photo
(102 x 152 mm/4 x 6"), Index card (127 x 203 mm/5 x 8"), Photo-L (89 x
127 mm/3.5 x 5"), Photo-2L (127 x 178 mm/5 x 7"), C5, Com-10, DL
Envelope, Monarch, Mexico Legal, India Legal, 16K (195 x 270 mm)
ADF (width/length)105/148 mm to 297/431.8 mm (4.1/5.8" to 11.7/17.0")
Scanner Glass
(width/length)
up to 297/431.8 mm (up to 11.7/17.0")
*2
*1
Only for Hong Kong/Taiwan/China
*2
Only for China
*3
Only for US area
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Media
Sizes
ModelMFC-J6545DWMFC-J6730DWMFC-J6930DWMFC-J6935DW
<Landscape> A4, LTR, EXE
Standard Tray
Lower Tray
3rd Tray
Manual Feed Slot
MP Tray
Duplex Print
ADF (width/length)105/148 mm to 297/431.8 mm (4.1/5.8" to 11.7/17.0")
Scanner Glass
(width/length)
<Portrait> A3, LGR, LGL, Folio, A5, A6, Photo (102 x 152 mm/4 x 6"),
Index card (127 x 203 mm/5 x 8"), Photo-L (89 x 127 mm/3.5 x 5"), Photo-2L (127 x 178 mm/5 x
7"), C5, Com-10, DL Envelope, Monarch, Mexico Legal, India Legal
N/A
N/A
<Landscape> A4,
LTR, EXE
<Portrait> A3, LGR,
LGL, Folio, A5, A6,
Photo (102 x 152 mm/
4 x 6"), Index card
(127 x 203 mm/5 x 8"),
Photo-L (89 x 127 mm/
3.5 x 5"), Photo-2L
(127 x 178 mm/5 x 7"),
Com-10, DL Envelope,
Monarch, C5, Mexico
Legal, India Legal
(102 x 152 mm/4 x 6"), Index card (127 x 203 mm/5 x 8"), Photo-L (89 x
127 mm/3.5 x 5"), Photo-2L (127 x 178 mm/5 x 7"), C5, Com-10, DL
Envelope, Monarch, Mexico Legal, India Legal, 16K (195 x 270 mm)
(102 x 152 mm/4 x 6"), Index card (127 x 203 mm/5 x 8"), Photo-L (89 x
127 mm/3.5 x 5"), Photo-2L (127 x 178 mm/5 x 7"), Com-10, DL
Envelope, Monarch, C5, Mexico Legal, India Legal, 16K (195 x 270
*2
mm)
<PC Print> A3, LGR, B4 (JIS)
*1
, B6 (JIS)*1, Mexico Legal, India Legal, 16K (195 x 270 mm)