Lexmark 4059-XXX manual Go to Output Expander Control

4059-XXX

	FRU	Action
3	Stepper Motor Level 1	Check the stepper motor connector
		to ensure it is correctly installed at J4
		on the output expander option board.
		Go to “Output Expander Control
		Board - Level 1 Stepper Motor” on
		page 5-22. If correct, disconnect J4
		from the option board and check the
		resistance of the stepper motor at
		J4:
		J4-1 to J4-2: Approximately 10 ohms
		J4-3 to J4-4: Approximately 10
		ohms.
		Also check each winding for shorts
		between J4-1 thru J4-4 and the
		motor housing. If you find a problem,
		replace the stepper motor. If you do
		not find a problem, replace the
		output expander mechanical linkage
		assembly.

Diagnostic Information 2-82