Lexmark 2050 Color Jetprinter Service Manual - Page 17
Maintenance Station Service Check, Diagnostic Information 2-7
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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 Action 1 Maintenance Station Assembly 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. 2 Wiper 3 Cap Check the maintenance station for worn or broken parts. A worn wiper causes degraded print quality just after a maintenance cleaning. Check for loose or worn wiper. A worn cap causes the printhead nozzles to dry and clog. Check for loose or worn cap. Diagnostic Information 2-7