Brother 4750e Intellifax Fax Machine Owners Manual

							19 - 20   TROUBLESHOOTING AND ROUTINE MAINTENANCE
ZleMFC-US-FAX-4750e/5750e-
3Reinstall the drum unit into the machine.
(See 
Replacing the Drum Unit, Page 19-23.)
4Close the front cover.
5Plug in the power cord first, and then plug in the telephone cord.
Replacing the Toner Cartridge
The machine can print up to 6,000 pages using a high yield toner cartridge.  
When the toner cartridge is running low, the display shows TONER LOW.  The 
machine is supplied with a standard toner cartridge that must be replaced after 
approximately 3,000 pages.  Actual page count will vary depending on your 
average document type (i.e., standard letter, detailed graphics).
It is a good idea to keep a new toner cartridge ready for use when you see the 
toner low warning.
Discard the used toner cartridge according to local regulations, keeping it 
separate from domestic waste.  Be sure to seal the toner cartridge tightly so toner 
powder does not spill out of the cartridge. If you have questions, call your local 
waste disposal office.  
We recommend that you clean the machine when you replace the toner 
cartridge.
Toner Empty Indicator
When the toner cartridge is running low, the LCD shows TONER LOW and 
the Toner Empty icon on the control panel flashes on and off to indicate the 
toner is low.
The Toner Empty icon appears and the LCD shows TONER EMPTY.  Once 
this icon appears, your machine will not resume printing until you install a new 
toner cartridge.
LCDToner Empty Icon 
						

							TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 21
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WARNING
Just after you use the machine, some internal parts of the machine will be 
extremely HOT!  So, never touch the shaded parts shown in the illustration.
1 Open the front cover and pull out the drum unit.
Place the drum unit on a drop cloth or large piece of disposable paper to avoid 
spilling and scattering the toner.
2Hold down the lock lever on the right as you pull the toner cartridge out of the 
drum unit.
Caution
Handle the toner cartridge carefully.  If toner scatters on your hands or clothes, 
immediately wipe it off or wash it with cold water.
3Unpack the new toner cartridge.  Place the used toner cartridge into the 
aluminum bag and discard it according to local regulations.
HOT!
Lock
Lever 
						

							19 - 22   TROUBLESHOOTING AND ROUTINE MAINTENANCE
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Caution
Wait to unpack the toner cartridge until immediately before you install it into the 
machine.  If a toner cartridge is left unpacked for a long period of time, the toner life 
is shortened.
You can use only a genuine Brother Toner Cartridge (TN-430 or TN-460), which is 
specially formulated to ensure top print quality.  Using another brand of toner cartridge 
may void your machine’s warranty. Warranty coverage does not apply to problems 
caused by the use of 3rd party Toner, 3rd party Toner cartidge or 3rd party Drum unit.
4Gently rock the toner cartidge 
from side to side five or six times 
to distribute the toner evenly 
inside the cartridge.
5Remove the protective cover.
6Install the new toner cartridge 
into the drum unit until it clicks 
into place.
7Clean the primary corona 
wire inside the drum unit by 
gently sliding the blue tab 
from right to left several 
times. Return the blue tab to 
the Home position before 
reinstalling the drum unit 
assembly.
Drum Unit
Toner Cartridge
Home Position (     )
Ta bCorona Wire 
						

							TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 23
ZleMFC-US-FAX-4750e/5750e-
8Reinstall the drum unit and close the 
front cover.
Replacing the Drum Unit
The machine uses a drum unit to create print images on paper.  If the LCD shows 
CHANGE DRUM SOON, the drum unit is near the end of its life and it is time 
to purchase a new one.
Even if the LCD shows CHANGE DRUM SOON, you may be able to continue 
printing without having to replace the drum unit for a while.  However, if there 
is a noticeable deterioration in the output print quality (even before 
CHANGE DRUM SOON is shown), then the drum unit should be replaced.  
You should clean the machine when you replace the drum unit. 
(See Page 19-19.)
Caution
When removing the drum unit, handle it carefully because it contains toner. If 
toner scatters and your hands or clothes get dirty, immediately wipe or wash 
with cold water. 
WARNING
Just after you have used the 
machine, some internal parts 
of the machine are extremely 
HOT! So please be careful.
Follow these steps to replace 
the drum unit:
The drum unit is a consumable item, and it is necessary to replace it 
periodically.  There are many factors that determine the actual drum life, such 
as temperature, humidity, type of paper and how much toner you use for the 
number of pages per print job.  The estimated drum life is up to 20,000 pages. 
The actual number of pages your drum will print may be significantly less than 
these estimates.  Because we have no control over the many factors that 
determine the actual drum life, we cannot guarantee a minimum number of 
pages that will be printed by your drum.
HOT! 
						

							19 - 24   TROUBLESHOOTING AND ROUTINE MAINTENANCE
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1Open the front cover.
2Remove the old drum unit. 
Place the drum unit on a drop cloth or 
disposable paper to avoid scattering 
toner.
3Hold down the lock lever on the right 
and pull the toner cartridge out of the 
drum unit assembly.
(See 
Replacing the Toner Cartridge, 
Page 19-20.)
4Wait to unpack the new drum unit until immediately before installing it. Place the old 
drum unit into the aluminium bag, and then discard it according to local regulations.
5Reinstall the toner cartridge into the new drum unit. (See Replacing the Toner 
Cartridge
, Page 19-20.)
6Reinstall the new drum unit, keeping the front cover open.
7Press Clear.
8Press 1 and when the LCD shows ACCEPTED, 
and then close the front cover.
Caution
If toner scatters and your hands or clothes get dirty, immediately wipe off or 
wash with cold water.
Checking the Drum Life
You can see the percentage of the drum’s life that remains available.
1Press Menu, 2, 0, 3. 
2For five seconds, the LCD shows the available 
percentage of drum life.
Discard the used drum unit according to local regulations, keeping it separate 
from domestic waste. Be sure to seal the drum unit tightly so toner powder does 
not spill out of the unit. If you have questions, call your local waste disposal 
office.  
Even if the remaining drum life is 0%, you may continue to use the drum unit 
until you have a print quality problem.
Lock
Lever
REPLACE DRUM?
1.YES  2.NO
3.DRUM LIFE
DRUM LIFE
REMAINING:70% 
						

							IMPORTANT INFORMATION   20 - 1
20
ZleMFC-US-FAX-4750e/5750e-
20Important Information
Standard Telephone and FCC Notices
These notices are in effect on models sold and used in 
the United States only.
This equipment is hearing aid compatible.
When programming emergency numbers and making test calls to 
emergency numbers:
Remain on the line and briefly explain to the dispatcher the reason for the call 
before hanging up.
Perform these activities in the off-peak hours, such as early morning or late 
evening.
This equipment complies with Part 68 of FCC Rules. On the rear panel of this 
equipment is a label that contains, among other information, the FCC 
Registration Number and Ringer Equivalence Number (REN) for this 
equipment. You must, upon request, provide this information to your telephone 
company. 
You may safely connect this equipment to the telephone line by means of a 
standard modular jack, USOC RJ11C.
An FCC compliant telephone cord with a modular plug is provided with this 
equipment. This equipment is designed to be connected to the telephone line or 
premises wiring using a compatible modular jack that is Part 68 compliant. See 
the Installation section of this manual for details.
The REN is useful to determine the quantity of devices you may connect to your 
telephone line and still have those devices ring when your telephone number is 
called. In most, but not all areas, the sum of the RENs of all devices connected 
to one line should not exceed five (5). To be certain of the number of devices 
you may connect to your line, as determined by the REN, you should contact 
your local telephone company to determine the maximum REN for your calling 
area. If your FAX-4750e or FAX-5750e damages the telephone line, the 
telephone company may discontinue your service temporarily. If possible, they 
will notify you in advance. But if advanced notice is not practical, you will be 
notified as soon as possible. You will be informed of your right to file a 
complaint with the FCC.
Your telephone company may make changes to its facilities, equipment, 
operations or procedures that could affect the proper functioning of your 
equipment. If they do, you will be notified in advance to give you an opportunity 
to maintain uninterrupted telephone service.  
						

							20 - 2   IMPORTANT INFORMATION
ZleMFC-US-FAX-4750e/5750e- If you experience trouble with your FAX-4750e or FAX-5750e, please contact 
a Brother Authorized Service Center for information on obtaining service or 
repair. The telephone company may ask that you disconnect this equipment 
from the line until the problem has been corrected or until you are sure that the 
equipment is not malfunctioning.
If you are not able to solve a problem with your machine, contact Brother 
Customer Service. (See 
Brother Numbers, page i)
WARNING
For protection against the risk of electrical shock, always disconnect all cables 
from the wall outlet before servicing, modifying or installing the equipment.
This equipment may not be used on coin service lines provided by the 
telephone company or connected to party lines.
Brother cannot accept any financial or other responsibilities that may be the 
result of your use of this information, including direct, special or consequential 
damages. There are no warranties extended or granted by this document.
Laser Safety
This equipment is certified as a Class I laser product under the U.S. Department 
of Health and Human Services (DHHS) Radiation Performance Standard 
according to the Radiation Control for Health and Safety Act of 1968.  This 
means that the equipment does not produce hazardous laser radiation.
Since radiation emitted inside the equipment is completely confined within 
protective housings and external covers, the laser beam cannot escape from the 
fax machine during any phase of user operation.
FDA Regulations
U.S. Food and Drug Administration (FDA) has implemented regulations for 
laser products manufactured on and after August 2, 1976.  Compliance is 
mandatory for products marketed in the United States.  One of the following 
labels on the back of the machine indicates compliance with the FDA 
regulations and must be attached to laser products marketed in the United States.
Manufactured
BROTHER CORP. (ASIA) LTD.
BROTHER BUJI NAN LING FACTORY 
Gold Garden Industry, Nan Ling Village, Buji, Rong Gang, Shenzhen, China. 
This product complies with FDA radiation performance standards, 
21 CFR Subchapter J. 
						

							IMPORTANT INFORMATION   20 - 3
ZleMFC-US-FAX-4750e/5750e-
WARNING
Use of controls, adjustments or performance of procedures other than those 
specified in this manual may result in hazardous invisible radiation exposure.
Caution
Changes or modifications not expressly approved by Brother Industries, Ltd. 
may void the user’s authority to operate the equipment.
Federal Communications Commission (FCC) 
Declaration of Conformity (For USA Only)
declares, that the products
Product Name: FAX-4750e
FAX-5750e
comply with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 
(1) This device may not cause harmful interference, and (2) this device must accept any 
interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B 
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to 
provide reasonable protection against harmful interference in a residential 
installation. This equipment generates, uses, and can radiate radio frequency 
energy and, if not installed and used in accordance with the instructions, may 
cause harmful interference to radio communications. However, there is no 
guarantee that interference will not occur in a particular installation. If this 
equipment does cause harmful interference to radio or television reception, which 
can be determined by turning the equipment off and on, the user is encouraged to 
try to correct the interference by one or more of the following measures: 
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver. 
•Connect the equipment into an outlet on a circuit different from that to 
which the receiver is connected. 
•Ask the dealer or an experienced radio/TV technician for help.  Internal laser radiation
Max. Radiation Power
Wave Length
Laser Class5 mW
760 - 810 nm
Class IIIb (Accordance with 21 CFR Part 1040.10)
Responsible 
Party:Brother International Corporation
100 Somerset Corporate Boulevard
Bridgewater, NJ 08807-0911  USA
TEL: (908) 704-1700 
						

							20 - 4   IMPORTANT INFORMATION
ZleMFC-US-FAX-4750e/5750e-
Important 
Changes or modifications not expressly approved by Brother Industries, Ltd. 
could void the user’s authority to operate the equipment.
Industry Canada Compliance Statement 
(For Canada Only) 
This Class B digital apparatus complies with Canadian ICES-003. 
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du 
Canada.
Warranty 
You use the IEEE-1284 shielded parallel cable provided by Brother Industries, 
Ltd. (See 
Ordering Accessories and Supplies, page ii.)
International ENERGY STAR® Compliance 
Statement
As an ENERGY STAR® Partner, Brother Industries, 
Ltd. has determined that product meets the 
E
NERGY STAR® guidelines for energy efficiency.
Important Safety Instructions
1Read all of these instructions.
2Save them for later reference.
3Follow all warnings and instructions marked on the product.
4Unplug this product from the wall outlet before cleaning. Do not use liquid or 
aerosol cleaners. Use a damp cloth for cleaning.
5Do not place this product on an unstable cart, stand, or table. The product may 
fall, causing serious damage to the product.
6Slots 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 over a radiator or 
heater. This product should never be placed in a built-in installation unless 
proper ventilation is provided.
7This product should be operated from the type of power source indicated on the 
label. If you are not sure of the type of power available, ask your dealer or local 
power company.   
						

							IMPORTANT INFORMATION   20 - 5
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8This product is equipped with a 3-wire grounding type plug, a plug having a 
third (grounding) pin. This plug will fit into only 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 by using an adapter.
9Do not allow anything to rest on the power cord. Do not place this product where 
people can walk on the cord.
10If 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. Also, make sure that the total of all products 
plugged into the wall outlet does not exceed 15 amperes (USA only).
11Never 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.
12This product does not have an ON/OFF switch. Therefore, it is very important 
that you have easy access to the main plug and the main socket to which the plug 
is connected, in case the main power to the Brother machine must be 
disconnected quickly.
13Unplug this product from the wall outlet and refer servicing to Authorized 
Service Personnel under the following conditions: 
A When the power cord is damaged or frayed.
B If liquid has been spilled into the product.
C If the product has been exposed to rain or water.
D 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.
E If the product has been dropped or the cabinet has been damaged.
F If the product exhibits a distinct change in performance, indicating a need 
for service.
14Do not attempt to service this product yourself, as opening or removing covers 
may expose you to dangerous voltage points and/or other risks, and may void 
your warranty. Refer all servicing to Authorized Service Personnel. A list of 
Authorized Service Centers has been included for your convenience, or you may 
contact  Customer Service for your nearest Brother Authorized Service Center. 
(See Brother Numbers, page i. )
15To protect your product against power surges, we recommend the use of a power 
protection device (Surge Protector).