Diagnostic information 2-67
7525-63x
Fax transmission service check
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 performed
with guidance from your second-level support.
Step Questions / actions Yes No
1 Is the phone line properly connected to the
modem card and the wall jack?
Go to step 2. Go to step 3.
2
Properly connect the phone line to the modem
card and wall jack.
Did this fix the problem?
Problem resolved. Go to step 3.
3
Test the phone line’s ability to send and
receive calls.
Does the phone line work properly?
Go to step 5. Go to step 4.
4
Use the MFP on a properly functioning phone
jack.
Does this fix the problem?
Problem resolved. Go to step 5.
5
Is the phone line being used by the MFP an
analog line?
Go to step 8. Go to step 6.
6
Is the line being used a VOIP line? Go to step 7. Go to step 8.
7
Have the system administrator verify that the
VOIP server is configured to receive faxes.
Is the server properly configured?
Go to step 8. Stop here. The issue is
VOIP related. The VOIP
provider needs to change
the server configuration.
8
Is the MFP on a PABX? Go to step 9. Go to step 10.
9
Enable Behind a PABX under fax settings in
the Administrative menu.
Did this fix the problem?
Problem resolved. Disable Behind a PABX,
and go to step 10.
10
Is a dial prefix needed to get an outside
line?
Go to step 11. Go to step 12.
11
Try sending a fax using a dial prefix.
Does the fax transmit?
Problem resolved. Go to step 12.
12
Is the fax failing to send to one specific
destination?
Go to step 13. Go to step 14.
13
Check the device that cannot receive a fax.
Can it send a fax?
Go to step 14. Stop here. The issue is with
the other device.
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