Lexmark X925 - Words on Fax Are Stretched; Incoming Fax Has Blank Spaces or Poor Quality; No Dial Tone; Fax Dials a Number, but no Connection Is Made

Diagnostic information 2-83
7541-03x
Words on fax are stretched
The sending machine had a temporary jam.
Incoming fax has blank spaces or poor quality
1. The sending fax machine may be faulty.
2. The sending fax machine may have a dirty document glass.
3. A noisy phone line can cause errors.
4. Check the MFP print quality by making a copy.
5. The print cartridge may be empty. Replace as necessary.
No dial tone
Fax dials a number, but no connection is made
The other fax machine may be turned off. Ask the fax recipient to check their machine.
Step Questions / actions Yes No
1 Is the phone line properly connected to
the modem card and the wall jack?
Go to step 3. Go to step 2.
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.
Did the phone line work properly?
Go to step 5. Go to step 4.
4 Use the MFP on a properly functioning
phone jack.
Did this fix the problem?
Problem resolved. Go to step 5.
5 Is the modem card cable properly
connected to the system board at J8 and
the modem card?
Go to step 7. Go to step 6.
6 Properly connect the modem card cable
to the modem card and system board.
Did this fix the problem?
Problem resolved. Go to step 7.
7 Check the modem card cable for
continuity. Is there continuity?
Go to step 8. Replace the modem
card cable.
8 Check the voltages from connector
JMODEM1 on the RIP board. Check Pin
10 +3.3VDC, Pin 10 for +5VDC. 2, 4, 6,
and 8 are grounds. Are the signals or
voltages present?
Replace the modem
card.
Replace the RIP board.
See
“RIP board
removal” on
page 4-73.