Lexmark 4059-XXX manual

4059-XXX

	FRU	Action
5	High Capacity Feeder	Check the voltage on J8-1 (green).
	Option Control Board	The voltage measures +24 V dc. If
		incorrect, check the autoconnect
		system for any problems. +24 V dc
		must come from the base printer
		through the autoconnect system to
		the high capacity input for the high
		capacity feeder to be recognized. If
		the voltage is correct, check the
		voltages at J11-3(red) and J11-
		4(red). The voltages measure +24 V
		dc. If correct, replace the high
		capacity feeder option system board.
		If incorrect, disconnect J8 from the
		system board and measure the
		voltages again. If incorrect, check
		the LVPS cable and the A.C. internal
		wiring from the input appliance
		receptacle. If incorrect, replace as
		necessary. If correct, replace the
		LVPS. If the voltages are correct,
		check the stepper motor for shorts
		from the motor housing to each pin
		on the motor connector. If you find a
		short between any pin and the motor
		housing, replace the motor
		assembly. If no shorts are found,
		replace the high capacity feeder
		option control board.
		Check the voltage at J9-1 (light
		blue). The voltage measures
		approximately +24 V dc. If incorrect,
		disconnect the cable at J9 and check
		the voltage again. If the voltage
		continues to be incorrect, replace
		the high capacity feeder option
		system board. If the voltage
		measures correctly, check the cable.
		If the cable is damaged, replace as
		necessary. If no problem is found
		with the cable, replace the high
		capacity feeder option control board.

2-634059 Service Manual