Lexmark 4044-XXX, E310 manual XXX The fuser lamp does light, Service Manual, Action

4044-XXX

The fuser lamp does light

FRU	Action
Model 310	If the fuser lamp comes on and a
Thermistor	fuser failure LED error code displays,
	be sure the thermistor is contacting
	the hot roll and the thermistor cable
	is firmly seated in connector CN1 on
	the LVPS board. Check for excessive
	toner buildup on the surface of the
	thermistor. Clean or replace as
	necessary. Turn the printer off and
	disconnect the thermistor cable from
	CN1 on the LVPS board. Measure
	the resistance of the thermistor
	between CN1-1 and CN1-2. The
	resistance measures approximately
	225K ohms when cool. Replace the
	thermistor as necessary.
Model 312	If the fuser lamp comes on and a
Thermistor	fuser failure LED error code displays,
	be sure the thermistor is contacting
	the hot roll and the thermistor cable
	is firmly seated in connector CN10
	on the engine board. Check for
	excessive toner buildup on the
	surface of the thermistor. Clean or
	replace as necessary. Turn the
	printer off and disconnect the
	thermistor cable from CN10 on the
	engine board. Measure the
	resistance of the thermistor between
	CN10-1 and CN10-3. The resistance
	measures approximately 225K ohms
	when cool. Replace the thermistor
	as necessary.
Models E310 & E312	Make sure the correct voltage lamp
Fuser Lamp	is installed. The voltage rating is
	stamped on one of the lamp
	contacts.

2-18Service Manual