Hot Fuser Service Check - Lexmark X422 Laser MFP Service Manual

7001–001

Hot fuser service check

Make sure the correct voltage lamp is installed. The voltage rating is
stamped on one of the lamp contacts.
FRU
Lamp
Fuser assembly
2-28
Service Manual
Action
Unplug the MFP and make sure the
termister is properly connected in
J29 on the RIP card. Measure the
resistance of the thermistor.
The resistance measures
approximately 245K ohms when cool
(approximately 40°C) and
2K–3K ohms hot.
Replace the fuser assembly as
necessary.