C5550 MFP User’s Guide
Troubleshooting > 161
F
AX
PROBLEM
CHECKLIST
If a problem occurs, read through the list of problems and
solutions before calling for service.
T
HE
MFP
WILL
NOT
DIAL
A
TELEPHONE
NUMBER
Check the power cable and wall outlet. Make sure that the
telephone line (not external telephone or handset) is connected
to the LINE socket on the back of the machine. If an external
telephone is installed, lift the handset and check for a dial tone.
If there is no dial tone, there may be a problem with the
telephone line. If there is a dial tone, the MFP may be using the
wrong dialling method (pulse or tone) for the region. If
alternating tones are heard instead of dialling pulses and the
region uses pulse dialling, change the call parameters (
).
T
HE
DISPLAY
SHOWS
A
COMMUNICATIONS
ERROR
This indicates any of a number of problems:
>
The MFP may be incompatible with the remote machine,
or the remote machine may not be able to perform the
function requested of it such as polling or confidential
faxing.
>
The remote machine may also be out of paper or
experiencing a paper jam.
>
Bad telephone line conditions can also cause
communication errors. Try sending the fax again and
check to make sure that the correct telephone number is
being dialled.
>
If a prefix number must be dialled to get an outside line,
or if the call is to an international destination, a pause
may need to be entered (use the Pause key) after the dial
prefix or international dialling code to tell the machine to
wait for a dial tone. If there are frequent problems
communicating with a particular remote machine, try
programming the telephone number into a speed dial key,
and then change the parameters for that key (
).
