WRITING APPARATUS FUNCTIONING WITH LIQUID DROPLETS

摘要

An improved recording device, which has a row of nozzles with each nozzle having an inlet opening and an outlet opening and a piezoelectric transducer arranged adjacent the inlet opening for forcing a drop of recording fluid from the outlet opening onto a recording medium in response to a voltage change on the transducer, characterized by the individual transducers being formed as teeth of a comb-like piezoplate that is a bilaminar plate formed of a piezoceramic layer and a carrier layer and has a reinforcing layer in the area of a spine of the comb which is shared by all teeth of the plate.