Lexmark 5021-0XX manual Go to 985-Duplex connection error 1 service

		5021-0XX
Error code	Action
979	Indicates a problem with the network port.
Flash parts failed	•	Network printer
while programming	Replace RIP board. Go to “RIP board removal” on
network port	page 4-45.
	•	Standard printer with INA
	Replace INA. If terror persists, replace RIP board. Go
	to “RIP board removal” on page 4-45.
980	Indicates a communication problem between engine
Duplex controller	controller board and duplex unit.
hardware error 1	• Ensure that duplex cable is connected.
	•	If cable is connected and error persists, replace
		duplex unit.
	•	If replacing duplex unit does not clear error,
		replace engine controller board. Go to “Engine
		controller board removal” on page 4-55.
982	Indicates a communication problem between engine
Duplex controller	controller board and duplex unit.
hardware error 1	• Ensure that duplex cable is connected.
	•	If cable is connected and error persists, replace
		duplex unit.
	•	If replacing duplex unit does not clear error,
		replace engine controller board. Go to “Engine
		controller board removal” on page 4-55.
983	Indicates a blown motor-protective current fuse
Duplex motor error	located on DCTL board in duplex unit. Replace
	duplex unit.
984	Indicates a duplex solenoid problem. Replace duplex
Outer pass select	unit.
solenoid error
985	Indicates that there is a connection problem between
Duplex connection	the duplex unit and the low voltage power supply.
	Go to “985—Duplex connection error 1 service
error 1
	check” on page 2-63.
986	Indicates that there is a connection problem between
Duplex connection	the duplex unit and engine controller board.
	Go to “986—Duplex connection error 2 service
error 2
	check” on page 2-64.

Diagnostic information 2-7