Piezo High Res Printers
This technology works based on piezoelectric pulses. Voltage fed through piezoelectric crystals or ceramic chambers causes a change in the shape of the chambers. This causes the coloured ink to be pressed through the nozzles. After a drop of ink leaves the print head, a vacuum is created in its place for a moment. This causes more ink to be suctioned out of the lower positioned ink tank to refill the pool.