Lexmark 4059-XXX manual Printer idle

4059-XXX

	FRU	Action
4	Output Expander Control	Check the voltages at connector J4.
	Board Level 1	Go to “Output Expander Control
		Board - Level 1 Stepper Motor” on
		page 5-22.
		Printer idle
		J4-1 +21 V dc to +24 V dc
		J4-2 +21 V dc to +24 V dc
		J4-3 +21 V dc to +24 V dc
		J4-4 +21 V dc to +24 V dc
		Printer Feeding Paper
		J4-1 Approximately +16 V dc
		J4-2 Approximately +16 V dc
		J4-3 Approximately +16 V dc
		J4-4 Approximately +16 V dc
		The voltage drops to approximately
		+16 V dc as the output expander bin
		stepper motor turns on and a sheet
		of paper is fed through the redrive
		into the output expander assembly. If
		any of the voltages fail to change,
		replace the output expander option
		board. If that does not correct the
		problem, replace the output
		expander mechanical linkage
		assembly.

2-834059 Service Manual