Lexmark 4069-XXX manual Diagnostic Information

4069-XXX

230 Paper Jam - Check Duplex message displays. The page is not duplexed and only exits half way out of the redrive.

	FRU	Action
1	Duplex Stepper Motor	Check the stepper motor cable for
		cuts or pinched wiring. Check the
		routing of the motor leads along the
		left side of the bottom tray. Check for
		correct installation of the motor cable
		connector at J3 on the system
		board. Check for any shorts between
		each pin of the motor cable and the
		motor housing. If shorts are found,
		replace the motor. Check the
		resistance of the stepper motor
		between J3-1 (Stpmtr A-) to J3-2
		(Stpmtr A+). The resistance
		measures approximately 10 ohms.
		The resistance between J3-3
		(Stpmtr B-) to J3-4 (Stpmtr B+)
		measures approximately 10 ohms. If
		the resistance is incorrect, replace
		the stepper motor. Check for shorts
		between windings on pins J3-1 to
		J3-2 and pins J3-3 to J3-4. If a short
		is found, replace the stepper motor
		assembly. If no short is found,
		replace the duplex system board.

Diagnostic Information 2-37