Lexmark E310, 4044-XXX manual XXX The fuser lamp does not light, Action

4044-XXX

The fuser lamp does not light

FRU	Action
Model E310	Turn the printer off and disconnect
Fuser Lamp	the fuser lamp wires from the fuser.
Lamp Cable	Check for continuity across the fuser
Thermistor	lamp wire contacts. If there is
LVPS	continuity, go to step 1: Continuity.
	If there is no continuity, go to
	step 2: No Continuity.
	Step 1: Continuity
	Measure the voltage at connector
	CN202 on the LVPS. It should match
	the line voltage. If it does not,
	replace the LVPS. If line voltage is
	present, check the fuser lamp cable
	for continuity. Replace if
	defective.Make sure the fuser
	thermistor is correctly connected to
	CN1 on the LVPS. If the problem
	persists, disconnect the thermistor
	cable from CN1 on the LVPS board
	and measure the voltage between
	CN1-1 and ground. The voltage
	measures approximately 3.9 V dc. If
	the voltage is incorrect, replace the
	LVPS. If correct, replace the
	thermistor.
	Step 2: No Continuity
	Check the thermal fuse for continuity.
	If incorrect, replace the thermal fuse.
	If correct, replace the lamp.

Diagnostic Information 2-19