Lexmark 5021-0XX Engine controller board, Removal on, Assembly removal on, Fuser assembly removal

5021-0XX

Message	Description	Action
87 Fuser Exhausted	Fuser is completely	Replace fuser.
	used.	If problem persists, check
		cable for continuity that
		connects engine controller
		board connector FUCN and
		fuser. If cable is bad, replace
		cable. Otherwise, replace
		engine controller board. Go to
		“Engine controller board
		removal” on page 4-55.
87 Fuser Life	Fuser is nearing	Press Go to clear message
Warning	end of life.	and continue printing.
		Replace fuser. Go to “Fuser
		assembly removal” on
		page 4-9.
		Note: Fuser is a customer
		ordered part.
		If problem persists, check
		cable for continuity that
		connects engine controller
		board connector FUCN and
		fuser. If cable is bad, replace
		cable. Otherwise, replace
		engine controller board. Go to
		“Engine controller board
		removal” on page 4-55.
87 Fuser Missing	Fuser is either	Correctly install fuser. Go to
	missing or	“Fuser assembly removal”
	incorrectly installed.	on page 4-9.
		If problem persists, check
		cable for continuity that
		connects engine controller
		board connector FUCN and
		fuser. If cable is bad, replace
		cable. Otherwise, replace
		engine controller board. Go to
		“Engine controller board
		removal” on page 4-55.

2-20Service Manual