Ricoh Toscana-P1 J007 Service Manual page 219

6. Detailed Section Descriptions
The carriage moves the first print head (in this example, "KC" of the J007/J010) above the first vent of the
maintenance unit.
• Only the first vent can siphon ink from the print head into the ink collection tank.
Another cam on the main shaft presses the maintenance unit up so the C print head covers the first vent.
Next, the maintenance motor reverses. The one-way clutch disengages the main shaft and engages the
second shaft. This operates the tube-pump. The suction from the pump sucks ink from the surface of the print
head.
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Next, the maintenance unit lowers, and another cam raises the wiper. At the same time the carriage moves
the print heads left far enough so the vacuumed print head touches the wiper. The wiper cleans the ink from
the print head.
Next, the carriage moves the print heads back to the home position. The maintenance unit caps the print
heads. A cam on the main shaft below vibrates the small scraper. This removes the ink bolus from the wall
of the trap and sends it to the ink collection tank.
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