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2.12. Maintenance Module
Aka Service Station (SS)
The multi-station, maintenance module (MM) maintains and cleans the printhead by
wiping off waste ink and contamination. In addition, the MM assists with printing by
priming the printhead, as well as protecting it when not in use, and guiding the paper as
it passes under the printhead.
The maintenance module (MM) is a sled that contains stations for wiper, cap/spittoon,
and print zone platen.
To position the correct station into place, a stepper motor moves the sled horizontally,
and a DC motor moves the sled vertically.
The maintenance module:
• Cleans the printhead of excess ink and debris.
• Keeps the printhead protected and hydrated while not in use.
• Provides a safe place to spit ink that is used to keep the nozzles clear.
• Provides a suitable base for supporting the media during printing. This is done with
the print zone platen station.
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