Ricoh Toscana-P1 J007 Service Manual page 218

Ink Supply System
You can set the print head for cleaning (or clean them all) if you start the clean job with the printer driver.
All the print heads are cleaned if the job starts from the operation panel.
Cleaning starts with the carrier and print heads capped and resting on top of the maintenance unit.
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When the cleaning cycle starts, the maintenance unit is lowered by the
rotation of the main shaft. The cams rotate away from the bottom of the unit.
At the same time, the carriage moves the print head unit to the left.
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