End Of Forms (Eof) Service Check; Maintenance Station Service Check - Lexmark Optra Color 45 Service Manual

4080-001

End of Forms (EOF) Service Check

Before turning the printer on, remove any paper from the input tray
and insert one sheet of paper into the manual paper tray slot. If
paper feeds through the machine when the printer is turned on, the
sensor is functioning properly. If paper fails to feed, check the end of
forms sensor flag for correct operation. If the operation is bad,
replace the flag. If the operation is good, replace the engine board,
refer to the "Engine Board Removal" on page

Maintenance Station Service Check

The maintenance station has two functions:
1. Cleans the printhead nozzles during the print operation.
2. Seals the printhead when it is not being used to prevent the
nozzles from drying.
FRU
1 Maintenance
Station Assembly
2 Wiper
3 Cap
2-10
Service Manual
Action
As the carrier moves to the right over the
maintenance station, a slot on the bottom of the
carrier engages a tab on the sled of the
maintenance station causing the caps to rise and
seal the printheads. Carrier movement to the left
will uncap the printheads. The wipers clean the
printhead nozzles as the carrier leaves the
maintenance station. The wipers clean the
printheads 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 wipers to lower.
Check the maintenance station for worn or broken
parts.
A worn wiper can cause degraded print quality just
after a maintenance cleaning. Check for loose or
worn wiper.
A worn cap can cause the printhead nozzles to
dry and clog. Check for loose or worn cap.
4-22.