Brother Ppf 3750 Plain Paper Laser Fax Owners Manual

							13
CHAPTER THIRTEEN
Troubleshooting 
and Maintenance
89
Troubleshooting
Fax-Back System
Brother Customer Service has installed an easy-to-use Fax-Back System, so
you can get instant answers to common technical questions and product
information for all Brother products. This system is available 24 hours a
day, 7 days a week. You can use the system to send faxes to any fax
machine, not just the one from which you are calling.
If you canÕt resolve a difficulty with your fax machine using this manual,
call our Fax-Back
  System, and follow the voice prompts to receive faxed
instructions about using the system, and an index of Fax-Back subjects.
USA:1-800-521-2846
From within Canada:1-800-681-9838
The Brother Fax-Back System number (USA only) has been preprogrammed
on One Touch key 
01.
Brother Home Page
You can find more information about Brother products, from product specification
sheets to Frequently Asked Questions (FAQs), on the World Wide Web. Visit us at
http://www.brother.com
Brother Bulletin Board
BrotherÕs Bulletin Board Numbers are
USA:1-888-298-3616
From within Canada:1-514-685-2040 
						

							90CHAPTER THIRTEEN
Error Messages
You may occasionally encounter a difficulty with your fax machine or
telephone line. If this happens, your fax machine often identifies the
problem and displays an error message. The list below explains the most
common error messages. You can correct most problems yourself.
If you need additional help, call the Brother Fax-Back System at
USA:1-800-521-2846
From within Canada:1-800-681-9838
  ERROR MESSAGE CAUSE ACTION
CHANGE DRUM SOONThe drum unit is near the end of Use the drum unit until you
its life. have a print quality problem,
then replace the drum unit with
a new one.
CHECK PAPERThe fax machine is out of paper Refill the paper or remove the
or paper is not properly loaded in paper and load it again.
the multi-purpose sheet feeder.
CHECK PAPER SIZEYour Paper Size setting may not When you see this error, the
be set correctly for the paper you reduction ratio automatically
are using (see page 37). will be changed to AUTO if you
used a fixed reduction ratio (see
pages 36Ð37).
COMM. ERRORA poor quality phone line Try the call again.
caused communications error.
CONNECTION FAILYou tried to poll a fax machine Verify the other party
Õs polling
that is not in Polled Waiting mode.setup.
COOLING DOWNThe temperature of the drum unit You must wait and allow the
PLEASE WAITor toner cartridge is too hot.  The fax machine to resume printing
fax machine will pause its when it is ready.
current print job and go into
cooling down mode.  During the
cooling down mode, you will
hear the cooling fan running
while the display on the fax
machine shows COOLING
DOWN and PLEASE WAIT.
ERROR MESSAGES 
						

							91TROUBLESHOOTING AND MAINTENANCE
COVER OPENThe top cover or multi-purpose Open, then close each cover.
sheet feeder cover was not
completely closed.
DISCONNECTEDThe other party or other partyÕs Try to fax or receive again or
fax machine terminated the call. call the other party to see what
happened.
DOCUMENT JAMDocuments were not inserted or Do not pull paper out until you
fed properly  or document was see page 93.
too long.
DOWNLOAD FULLThe download buffer is full. Unplug the fax machine and
(May occur when the fax plug it back in. Data remaining
machine is used as a printer.) in the memory of the fax machine
will be deleted.
MACHINE ERROR XXThe fax machine has a mechanical Turn off the power.  Then call
PRESS STOP KEYproblem. Brother Customer Service
USA:1-800-284-4329
From within Canada:
1-800-853-6660
From within Montreal:
1-514-685-6464
MEMORY FULLThe fax machine memory capacity Unplug the fax machine and
(May occur when the fax has been exceeded. plug it back in. Data remaining
machine is used as a printer.) in the memory of the fax machine
will be deleted.
¥ If you have installed the
Windows
¨ driver, try again
after setting the True Type
mode to ÒPrint as GraphicsÓ
in the PRINT menu of your
application software.
¥ Reduce the print resolution
or reduce the complexity of
your document.
¥ Expand the printer memory
with the optional memory
board. (ME1000 or ME2000)
(Only FAX 2750)
ERROR MESSAGE CAUSE ACTION 
						

							92CHAPTER THIRTEEN
 ERROR MESSAGE CAUSE ACTION
NO RESPONSE/BUSYThe number you called does not Check the number and try again.
answer or is busy.  Or, you may
have reached a number that is not
connected to a fax machine.
NOT REGISTEREDYou tried to access a One Touch Set up the One Touch or Speed
or Speed Dial number that is not Dial number.  See pages 63Ð65.
programmed.
PRINT OVERRUNThe available RAM has been Unplug the fax machine and
(May occur when the fax exceeded. plug it back in. Data remaining
machine is used as a printer.) in the memory of the fax machine
will be deleted.
¥ If you have installed the
Windows
¨ printer driver, try
again after setting the TrueType
mode to ÒPrint as GraphicsÓ in
the PRINT menu of your
application software.
¥ If this does not clear the error,
reduce the complexity of your
document or reduce the print
resolution.
PRINTER JAMThe paper is jammed in the fax Do not pull the paper out until
machine. you see pages 93Ð94.
SET CARTRIDGEToner cartridge is not installed. Reinstall the toner cartridge.
TONER EMPTYToner is used up and printing is Replace the toner cartridge with
not possible. a new one. (See pages 112Ð116.)
TONER LOWIf the display shows TONER Order a new toner cartridge now.
LOW and the Toner Empty LED
on the control panel is blinking,
you can still print.  But the toner
is depleted and the fax machine
is telling you that the toner will
soon run out. 
						

							93TROUBLESHOOTING AND MAINTENANCE
Document Jam
The documents were not inserted or fed properly, or were too long.
1Open the control panel.
2Carefully, pull the document toward the front of the fax machine.
3Close the control panel.
4Press Stop.
NO
OK
Printer Jam
Before you can clear a paper jam error, you must find out where the paper is
stuck. Review the following three types of printer jams and follow the
instructions.
WARNING
Do not force the jammed paper from the paper tray because you may damage
the fax machine and cause toner to scatter on the next printed pages.
After you have used the fax machine, some internal parts of the machine are
extremely HOT! When you open the top cover of the fax machine, never touch
the shaded parts shown in the following diagram.
   
HOT !
Inside the Fax Machine 
						

							94CHAPTER THIRTEEN
Paper is Jammed in the Multi-purpose Sheet Feeder
1Open the multi-purpose sheet feeder to pull the jammed paper upward out of
the feeder.
2Close the multi-purpose sheet feeder.
3Open the top cover and check that a torn piece of paper does not remain
inside the fax machine.
Multi-purpose
Sheet Feeder
Paper is Jammed near the Drum Unit or in the Fuser Unit
1Open the top cover.
2Remove the drum unit.
3Gently pull out the jammed paper.
4Reinstall the drum unit.
5Close the top cover.
Paper is
jammed
near drum
unit        
Paper is
jammed
in fuser
unit 
						

							95TROUBLESHOOTING AND MAINTENANCE
If You Are Having Difficulty with Your Fax Machine
If you think there is a problem with your fax machine, make a copy first.  If the
copy looks good, the problem is probably not your fax machine.  Check the table
below and follow the troubleshooting tips.
Printing and
Receiving Faxes
DIFFICULTY SUGGESTIONS
Condensed print and
horizontal streaks; top and
bottom of sentences are
cut off.
Vertical streaks; black lines
appear on the faxes you
receive.
The fax machine ÒhearsÓ
voice as CNG tone.
Horizontal streaks; lines are
missing.
Received faxes appear as split
or blank pages.
Dialing does not work.
The fax machine does not
answer when called.
There is no dial tone on
the handset.
If your copy looks good, you probably had a bad connection, with
static or interference on the phone line. If the copy looks bad, clean
the scanner area. If there is still a problem, call Brother Customer
Service at 1-800-284-4329 (USA) or 1-800-853-6660 (from within
Canada) or 1-514-685-6464 (from within Montreal).
Sometimes you may see vertical streaks/black lines on the faxes
you receive. Either your fax machineÕs primary corona wire for
printing may be dirty, or the sending partyÕs fax scanner may be
dirty. Clean your primary corona wire (see page 111), or ask the
sender to make a copy to see if the problem is with the sending
machine.
Try receiving from another fax machine.
If the problem continues, call Brother Customer Service at
1-800-284-4329 (USA) or 1-800-853-6660 (from within Canada)
or 1-514-685-6464 (from within Montreal).
If your fax machine is set to Easy Receive ON, and it answers voice
calls by trying to receive a fax, try turning Easy Receive to OFF.
You may get a fax with horizontal streaks or with missing lines.
Usually this is caused by a poor telephone connection. Ask the
other party to send the fax again.
If the received data is divided and printed on 2 pages or if you get
an additional blank page, your Paper Size setting may not be correct
for the paper you are using (see page 37). If you are using the fixed
reduction feature, check to see if the reduction ratio is suitable for
the real paper. (See pages 36Ð37.)
Check for a dial tone. Change TONE/PULSE setting (see ÒSetting
Dialing ModeÓ p. 27). Check all line cord connections, and make
sure the curled handset cord is not in the EXT jack. Check power
cord connection. Send a manual fax by pressing 
HookÑORÑby
lifting the handset, and dialing the number. Wait to hear the fax
receiving tones before pressing Start.
Make sure the fax machine is in the correct receiving mode for your
setup (either FAX, FAX/TEL or TAD). Check for dial tone. If
possible, call your fax machine to hear it answer. If there is still no
answer, check the telephone line cord connection. Connect a
standard telephone handset to the fax machine telephone jack. If
there is no ringing when you call your fax machine, call your
Telephone Company to check the line.
Press 
HookÑORÑLift the handset. If you hear no dial tone, check
telephone line cord connections at the fax machine and wall jack.
Check that the handset curled cord is connected to the fax machineÕs
handset jack. Test the jack with another single line telephone. If no
dial tone on the wall outlet, call your Telephone Company. Phone Line or
Connections 
						

							96CHAPTER THIRTEEN
Sending Faxes
Handling Incoming
Calls
DIFFICULTY SUGGESTIONS
Transmitting quality is poor.
Transmission verification report
prints ÒResults:NGÓ.
The receiving party says the
picture is not clear.
The receiving party says
vertical streaks appear on
the faxes they receive.
Double ring in FAX/TEL mode.
I have difficulty transferring a
fax call to the fax machine.
The Caller ID does not display
after the Call Waiting Signal.
(For FAX 2750 Only)
I have difficulty with custom
features on a single line.
(For FAX 2750 Only)Try changing your resolution to FINE or SUPERFINE (see
ÒResolutionÓ p. 55). Make a copy to verify the fax machineÕs
scanner operation.
There is probably temporary noise or static on the phone line. Try
sending the fax again. If the problem continues, call the Telephone
Company to check your phone line.
Sometimes the resolution mode you chose when you sent your
fax may not have been appropriate. Send the fax again, but try
using the FINE or SUPERFINE mode. Also, your fax machineÕs
scanner may be dirty, so try cleaning it. (See page 109.)
Your fax machineÕs scanner may be dirty or the receiving partyÕs
print head may be dirty. Clean your scanner (see page 109) and
make a copy to check if the problem was caused by your machine.
The fax machine knows the incoming call is not a fax, so it is
signaling you to answer the telephone call. Pick up the fax
machine handset or answer from an extension phone and press
your fax machineÕs Telephone Answer Code (default setting is
#51).
If you answered at the fax machine, press 
Start and hang up
immediately. If you answered at an extension phone, press your
fax machines Remote Activation Code (default setting is *51).
When your fax machine answers, hang up.
The Caller ID signal is sent ten seconds after the Call Waiting
Signal and speaking may interfer with it. When you hear the
Caller Waiting signal, ask the other party to hold while you catch
the other call. Then stop speaking until you see the Caller ID on
the LCD.
If you have Call Waiting, Caller ID, Call Waiting/Caller ID, Ring
Master, Voice Mail, an answering machine, alarm system or any
other custom feature on a single phone line with your fax
machine, it may create a problem sending or receiving fax data.
Example #1:  If you are having a telephone conversation and a fax
communication signal comes through on your Call Waiting Call
ID feature, you can verify that the second call is a fax by
switching to it. You have the option to receive the fax call, by
asking the first caller to hang up to clear the line.
Example #2:  If you are sending or receiving a fax message while
a Call Waiting Caller ID (or other custom feature) signal comes
through on the line, the signal can temporarily interrupt or disrupt
the fax data. (BrotherÕs ECM feature should help overcome this
problem.) This condition is related to the telephone system
industry, and is common to all devices that send and receive
information on a single, shared line with custom features. If
avoiding a slight interruption is crucial to your business, a
separate line with no custom features is recommended. 
						

							97TROUBLESHOOTING AND MAINTENANCE
General Printing
Difficulties
DIFFICULTY SUGGESTIONS
The fax machine does not print. Check the following:  ¥ The fax machine is plugged in.  ¥ The
toner cartridge and drum unit are installed properly.  ¥ The
interface cable is securely connected between the fax machine
and computer. ¥ Check to see if LCD is showing an error
message. (See pages 90Ð92.)
The fax machine prints Reset the fax machine. Check the primary settings in your
unexpectedely or it prints application software to make sure it is set up to work with your
garbage.fax machine.
The fax machine cannot print The fax machine received a very complex print job and
full pages of a document; could not process part of the page.  This may be solved in
the error message PRINT several ways.  If you are using Windows
¨ 3.1, 3.11, Windows¨ 95
OVERRUN occurs. or Windows NT¨ Workstation Version 4.0 with the supplied
printer driver, see the ÒWindows¨ Setup Printing ProblemsÓ
section.  Try to reduce the complexity of your document or
reduce print resolution.
The fax machine prints the Your computer is not recognizing the printers input buffer full
first couple of pages correctly, signal.  Please make sure to connect the printer cable correctly.
then some pages have text
missing.
The fax machine cannot print ¥ Reduce the printer resolution.  Reduce the complexity of your
full pages of a document; document and try again.  Reduce the graphic quality or the
A MEMORY FULL error number of font sizes within your application software.
message occurs. ¥ Expand the printer memory by installing one of the optional
memory boards (ME1000 or ME2000). (Only FAX 2750)
My headers or footers Most laser printers have a restricted area that will not accept
appear when I view my print. Usually these are the first two lines and last two lines,
document on the screen, leaves 62  printable lines.  Adjust the top and bottom margins in
but do not appear when your document to allow for this.
I print them. 
						

							98CHAPTER THIRTEEN
Paper Handling
Difficulties
DIFFICULTY SUGGESTIONS
I cannot print from my Make sure the Windows
¨ printer driver is installed and
application software. you select it in your application software.
Sometimes I get the error If you are using the supplied Windows
¨ driver, turn
message PRINT OVERRUN the error recover operation on in the Setup dialog box
when printing certain and try again.  Reduce the print resolution or reduce
documents from Windows.
¨the complexity of your document and try again.
Expand the printer memory by installing one of the
optional memory boards.
The fax machine does not load Check to see if the CHECK PAPER or PRINTER JAM
paper. The LCD shows message appears on the LCD.  If so, the multi-purpose
CHECK PAPER or sheet feeder may be out of paper or not properly installed.
PRINTER  JAM. If it is empty, load a new stack of paper into the feeder.  If
there is paper in the multi-purpose sheet feeder, make sure
it is straight. If the paper is curled, you should straighten
it.  Sometimes it is helpful to remove the paper, turn the
stack over and put it back into the multi-purpose sheet
feeder.  Reduce the amount of paper in the multi-purpose
sheet feeder, then try again.
The fax machine does not load Reinsert the paper firmly, one sheet at a time.
paper from the manual
feed slot.
How can I load envelopes? You can load envelopes from either the multi-purpose
(May occur when the fax sheet feeder or the manual feed slot. Your application
machine is used as a printer.) software must be set up to print the envelope size you are
using. This is usually done in the Page Setup or Document
Setup menu of your software. Refer to your application
manual.
What paper can I use? You can use plain paper, envelopes, transparencies, labels
(May occur when the fax and organizer paper.  For information on paper you can use,
machine is used as a printer.) see ÒAcceptable PaperÓ on page 16.
How can I clear paper jams? See ÒPrinter JamÓ on pages 93Ð94. Windows
¨ Setup
Printing Difficulties