Lexmark 4059-XXX manual Transfer Roll Service Check

4059-XXX

	FRU	Action
3	Toner Sensor	The toner sensor cable is part of the
		front harness and part of connector
		J10 on the engine board. Check the
		voltage at J1-011. It reads
		approximately +5 V dc. If incorrect,
		replace the engine board. If correct,
		check the voltage at J10-12. It reads
		approximately +5 V dc with the
		controller board removed from the
		printer. If incorrect, replace the
		engine board. If correct, replace the
		toner sensor assembly. A bad
		ground connection between J10-13
		on the engine board and pin 3 on the
		toner sensor results in a 929 service
		error.

Transfer Roll Service Check

Service Tip: The transfer roll is 17.0 mm (.669 inch) diameter. Any print quality problems such as lines that are spaced 17 mm apart indicate you should check the transfer roll for damage, toner or foreign material buildup.

Service Tip: The transfer roll assembly is part of the Maintenance Kit for models 2450, 2455 and 3455 printers and is replaced when a '80 Scheduled Maintenance” message displays. Ask the customer if they have replaced the transfer roll recently.

CAUTION: Make sure the printer is powered Off before making any checks on the transfer roll or associated parts for personal safety and to prevent damage to the printer.

	FRU	Action
1	Transfer Roll Assembly	Check the transfer roll for any signs
		of toner buildup, surface damage to
		the roll, oil or other contaminants on
		the surface of the roll. Replace the
		transfer roll as necessary.

2-1054059 Service Manual