Lexmark 4036-304 Scan module does not move to the flatbed position, Reading is not performed

4036-304

Scan module does not move to the flatbed position

Cause	Relevant	Check	Action
	Unit
Power supply-	None	Visual check	Connect the
main scanner			connector.
board
connection
failure
Power supply	Power supply	Tester check	Replace the
fails		(+5V, +24V,	power supply.
		GND)
Motor-main	None	Visual check	Connect the
scanner			connector.
board
connection
failure
Motor failure	Carrier motor	Visual check	Replace the
			carrier motor.
Belt broken or	Carrier belt	Visual check	Reposition belt
loose			or replace if
			defective.
Reading is not performed

Cause	Relevant	Check	Action
	Unit
ADF cover	ADF cover	Visual check	Close the ADF
open			cover.

2-10Service Manual