Ricoh J001 Service Manual page 502

Ink Supply System
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.
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.
This cycle is repeated for each print head selected for cleaning. For more, see
Section "4. Troubleshooting".
This cleaning cycle is also done automatically for all print heads if the printer
stays idle for the time intervals shown in the table below.
J007/J010/J011
CÓPIA NÃO CONTROLADA
6-22
CÓPIA NÃO CONTROLADA
SM