Lexmark 5016-001 manual If the voltage on pin 11 is incorrect, replace

5016-001

	FRU	Action
3	Duplex Rear	Check the voltages on the duplex rear unit door
	Unit Door Open	open sensor on connector CN904.
	Sensor(S8)	Pin #		Voltage	Voltage	Voltage
	Duplex Option		7	Signal	Closed	Open
	Controller Board			DGND	0 V dc	0 V dc
			9	BOSN	+5 V dc	0 V dc
		11		VL	+5 V dc	+5 V dc
		All voltages are approximate values.
		•	If the voltage on pin 11 is incorrect, replace the
			duplex option controller board.
		•	If the voltage on pin 9 does not change when
			the rear unit door is opened and closed, replace
			the FRUs in the following order:
		1.	Duplex rear unit door open sensor
		2.	Duplex option controller board

H 231 Paper Jam displays. Paper is jammed in upper or rear unit of the duplex option.

	FRU	Action
1	Upper Duplex	Check for pieces of paper or other material, in the
	Unit	upper and rear duplex units, that might cause a
	Rear Duplex	paper jam.
	Unit
2	Upper Transfer	Check all the parts associated with paper
	Roller	movement in the upper and rear duplex units for
	Upper Pinch	correct operation and signs of wear, broken parts
		or binds. Repair or replace as necessary.
	Rollers
	Transfer Drive
	Pulley
	Rear Unit Gears

Diagnostic Information 2-127