Davin J012, Service Manual

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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.
The carriage moves the first print head above the first vent of the maintenance unit (in this example, Print
Head 2 "K, C"). Only the first vent can siphon ink from the print head into the ink collector 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.
Ink Supply
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