Lexmark 5016-001 manual Lower, Transfer Roll, Transfer Drive, Pulley Transfer Gears Timing Belt

5016-001

	FRU	Action
3	Paper Pass	Check the voltages on the duplex upper unit paper
	Sensor	pass sensor on connector CN904.
	Upper Unit (S2)	Pin #		Voltage	Voltage	Voltage
				Signal	Closed	Open
		19		DGND	0 V dc	0 V dc
		21		UPSN	+5 V dc	0 V dc
		23		VL	+5 V dc	+5 V dc
		All voltages are approximate values.
		•	If the voltage on pin 23 is incorrect, replace the
			duplex option controller board.
		•	If the voltage on pin 21 does not change when
			the sensor is opened and closed, replace the
			FRUs in the following order:
		1.	Duplex upper unit paper pass sensor
		2.	Duplex option controller board

I232 Paper Jam displays. Paper is jammed in the lower rear unit, or the lower unit of the duplex option.

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

2-128Service Manual