Lexmark OptraTM manual 4026-0XX, Diagnostic Information, Paper Lift

4026-0XX

	FRU	Action
2	Paper Lift	Check the lift plate assembly, release button,
	Plate Assem-	button spring, release arm and all related hard-
	bly	ware for proper operation. Be sure the lift plate
		D-roll pad mounted on the top of the lift plate is
		not worn, contaminated or missing. Repair as
		necessary.
3	Paper Empty	Check the paper sensor flag for damage and
	Sensor Flag	proper operation. Repair or replace as neces-
		sary.
4	Paper Empty	Be sure the voltage at CN9-4 on the engine
	Sensor	board is between +4.5 V dc and +5.5 V dc. If
		incorrect, replace the engine board. If correct,
		check the voltage at CN9-6. The voltage
		changes from approximately +2.00 V dc to 0 V
		dc as you manually move the sensor flag in and
		out of the sensor. If incorrect, be sure tray two
		cable measures continuity. If incorrect, replace
		the cable. If correct, replace the tray two sensor
		board.
5	Second	Be sure the solenoid cable is connected to the
	Paper Tray	paper sensor board cable and the cable is prop-
	Solenoid/	erly connected to the sensor board.
	Engine
	Board/Sole-	Disconnect CN9 at the engine board. The volt-
	noid Cable/	age measures approximately +24 V dc at
	Tray Two	CN9-1. If incorrect, replace the engine board. If
	Cable	correct, reconnect CN9 and measure the volt-
		age again at CN9-1. If the voltage continues to
		be incorrect, check the resistance of the sole-
		noid at the solenoid cable connector which mea-
		sures from 60 to 90 ohms. If incorrect, replace
		the tray two solenoid. If correct, be sure the
		solenoid to sensor board cable measures conti-
		nuity. If incorrect, replace the sensor board and
		cable assembly. If correct, be sure the tray two
		to engine board cable measures continuity. If
		incorrect, replace the cable. If correct, replace
		the tray two sensor board.

Diagnostic Information 2-29