Fax Symptoms; Faxes Fail To Transmit - Lexmark X925 Service Manual

7541-03x

Fax symptoms

Faxes fail to transmit

Note: Before performing this service check, verify that the correct country code for the MFP is selected. This
setting must match the country in which the MFP is used to transmit and receive faxes. If the setting is wrong,
the modem settings can be changed in the Fax/SE menu. See step 14. These settings should only be changed
with guidance from your second-level support.
Step
1 Is the phone line properly connected to the
modem card and the wall jack?
2 Properly connect the phone line to the
modem card and wall jack.
Did this fix the problem?
3 Test the phone line's ability to send and
receive calls.
Did the phone line work properly?
4 Use the MFP on a properly functioning
phone jack.
Did this fix the problem?
5 Is the phone line being used by the MFP an
analog line?
6 Is the line being used a VOIP line?
7 Have the system administrator verify that
the VOIP server is configured to receive
faxes.
Is the server properly configured?
8 Is the MFP on a PABX?
9 Enable Behind a PABX under fax settings
in the Administration menu.
Did this fix the issue?
10 Is a dial prefix needed to get an outside
line?
11 Try sending a fax using a dial prefix.
Did the fax transmit?
12 Is the fax failing to send to one specific
destination?
13 Check the device that cannot receive a fax.
Can it send a fax?
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Service Manual
Questions / actions Yes
Go to step 3.
Problem resolved
Go to step 5.
Problem resolved.
Go to step 8.
Go to step 7.
Go to step 8.
Go to step 9.
Problem fixed.
Go to step 11.
Problem fixed.
Go to step 13.
Go to step 14.
No
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 8.
Stop here. The issue is
VOIP related. The
VOIP provider needs to
change the server
configuration.
Go to step 10.
Disable Behind a
PABX, and go to
step10.
Go to step 12.
Go to step 12.
Go to step 14.
Stop here. The issue is
with the other device.