Lexmark 5021-0XX manual Fuser thermistor service check, See Fuser assembly, Removal on See Engine

5021-0XX

920—Fuser thermistor service check

Step	Questions / actions	Yes	No
1	Remove and reinstall fuser	Problem solved.	Go to step 2.
	assembly. See “Fuser
	assembly removal” on
	page 4-9. Does error
	clear?
2	Check fuser connector for	Problem solved.	Go to step 3.
	damage. Replace if
	necessary. Does error
	clear?
3	Turn printer off and check	Go to step 4.	Properly connect
	cable that connects engine		cable or replace
	controller board connector		if damaged. If
	FUCN to fuser for proper		error clears,
	connection, continuity and		problem solved,
	pin shorts. Is cable okay?		otherwise go to
			step 4.
4	Replace fuser assembly.	Problem solved.	Replace engine
	See “Fuser assembly		controller board.
	removal” on page 4-9.		See “Engine
	Does error clear?		controller
			board removal”
	Note: Fuser is a customer		on page 4-55.
	order supply.

2-60Service Manual