Lexmark 5021-0XX manual Tray empty service check, Paper guide

			5021-0XX
Tray empty service check
Step	Questions / actions	Yes	No
1	Remove paper tray from	Go to step 2.	Replace paper
	printer. Press bottom of		tray.
	spring platform latches
	located in rear corners of
	paper tray. This releases
	spring platform of paper
	tray. Ensure tray is raising
	paper after insertion. Is tray
	working properly?
2	Ensure paper empty	Go to step 3.	Replace paper
	sensor flag swings with		guide (C)
	ease and is not broken or		assembly . See
	damaged. Is flag working		“Paper guide
	properly?		(C) assembly
			removal” on
			page 4-47.
3	Turn printer off and remove	Go to step 4.	Properly connect
	I/O board shield. See “I/O		cable.
	board removal” on
	page 4-70for steps to
	remove I/O board shield. Is
	cable properly connected
	to I/O board connector
	DCN16?
4	Reconnect operator panel.	Go to step 5.	Go to step 8.
	Turn printer on. Touch
	negative lead of voltmeter
	to metal bracket that holds
	I/O board to obtain ground.
	Touch positive lead to
	DCN16 pin 7 to ensure 5
	VDC is being supplied to
	paper empty sensor. Is 5
	VDC present?
5	Insert empty paper tray into	Go to step 6.	Go to step 7.
	printer. Check voltage level
	on DCN16 pin 8. Is 5 VDC
	present?

Diagnostic information 2-95