Lexmark 4402-001 manual Maintenance Station Service Check, Station Removal on

4402-001

Maintenance Station Service Check

The maintenance station has three functions:

1.Wipes the printhead nozzles to clean them of dirt.

2.Provides a place for printheads to fire all nozzles, keeping them clear prior to printing.

3.Seals the printhead when it is not being used to prevent the nozzles from drying.

	FRU	Action
1	Maintenance	As the carrier moves to the right over the
	Station Assembly	maintenance station, a slot on the bottom of the
		carrier engages a tab on the sled of the
		maintenance station causing the cap to rise and
		seal the printhead. Carrier movement to the left
		uncaps the printhead. The wiper cleans the
		printhead nozzles as the carrier leaves the
		maintenance station. The wiper cleans the
		printhead only when the carrier is moving to the
		left. There should be no wiping action of the
		printhead nozzles when the carrier is moving to
		the right. After the cleaning operation is complete,
		a tab on the maintenance station engages a tab on
		the carrier, causing the wiper to lower.
		Check the maintenance station for worn or broken
		parts. Replace if needed. Go to the “Maintenance
		Station Removal” on page 4-14.
		Worn wipers cause degraded print quality just after
		a maintenance cleaning. Check for loose or worn
		wipers.
		Worn caps cause the printhead nozzles to dry and
		clog. Check for loose or worn caps.

2-10Service Manual