INK JET DEVICE FOR THE CONTROLLED POSITIONING OF DROPLETS OF A SUBSTANCE ONTO A SUBSTRATE, METHOD FOR THE CONTROLLED POSITIONING OF DROPLETS OF A SUBSTANCE, AND USE OF AN INK JET DEVICE

摘要

The invention provides an ink jet device for the controlled positioning of droplets of a substance onto a substrate, the device comprising at least a print head with a nozzle designed to eject the droplet, the device further comprising at least one acoustic sensor arranged for detecting the landing of the droplet on the substrate. A feedback loop stops the printing process the moment the landing of a droplet is not detected within a predetermined delay time.