METHOD FOR PROVIDING AN INK JET PRINT HEAD WITH PIEZO CRYSTALS

摘要

An ink jet printer head has a main plate with a number of chambers filled with ink and leading to channels connecting to an array of nozzles at the plate edge. Typically the plate is produced of glass and the chambers are enclosed by a diaphragm plate with a piezo-ceramic plate located above. The piezo-ceramic plate (10) has a number of piezo-crystals separately mounted on the surface that align with the ink pressure chambers in the main plate. When excited by pulses, the crystals generate ink droplets from the nozzles.