7003-Xxx; Fax Quality Service Check; Diagnosing Fax Problems; Fuser Service Check - Lexmark X342N - Multi Function Printer Service Manual

Fax quality service check

Diagnosing fax problems

Problem
No dial tone
Ring tone volume for incoming faxes too low
Document does not feed in the ADF.
Lines on documents sent out.
SCVERR:facdata.c725 is displayed when faxing
a job larger than254 pages.
Some words on an incoming fax are stretched.
Fax quality low, erratic performance
FAX INITIAL FAIL is displayed
Note: Some fax-quality issues might be scanner-related. See

Fuser service check

When toner is partially fused to the paper, it is usually caused by low fuser temperature.
Note: Improper fusing can result from incorrect media settings in the driver, or on the MFP. Check those settings
before servicing the fuser.
Note: Make sure the correct voltage fuser is being used on the MFP.
Warning: Avoid handling the lamp as much as possible, as it is easily broken. Be careful not to touch the glass
housing with bare hands, because skin acids can weaken the glass. The lamp is not a service part.
The line voltage to the MFP must be within the following limits:
•
100 V ac–127 V ac for the 110 V model MFP
•
200 V ac–240 V ac for the 220 V model MFP
Turn the MFP off, and wait a few minutes for the fuser lamp to cool. Turn the MFP on, and observe the lamp
turning on during POST.
You can see the light from the lamp by opening the left side cover and observing the upper
opening through which the fuser power cables pass.
Solution
See "Modem service check" on page
Replace controller card.
See "ADF service check" on page
Check the flatbed glass for marks or scratches.
Break the job up into multiple jobs leess than 254 pages.
Fax machine sending the fax had a temporary jam.
Update firmware to build 115.
Inspect the modem cable. Replace the modem cable if
needed.
"Scan quality service checks" on page

7003-XXX

2-26.
2-19.
2-37.
2-23
Diagnostic information