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Service Guide OJ2010
Chapter 4 Failure and Repair Analysis
RAP 03: Maintenance Service Check
Check the maintenance station for worn or broken parts.
Check for loose or worn wipers.
Check for loose or worn caps.
The maintenance station has two functions.
1. It cleans the printhead nozzles during the print operation.
2. It seals the printhead when it is not being used. This prevents the nozzles from drying.
Maintenance Station Assembly
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.
This causes the maintenance station caps to rise and seal the printheads.
Carrier movement to the left uncaps 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.
No wiping action (of the printhead nozzles) should occur when the carrier is moving to the right.
After the cleaning operation is complete, a tab on the maintenance station engages a slot on the carrier.
This lowers the wipers.
Wiper
A worn wiper causes degraded print quality just after a maintenance cleaning.
Cap
A worn cap causes the printhead nozzles to dry and clog.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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