Basically, Continuous Inkjet Coding or marking or printers is a system that used for contactless printing of information on products and packages. In this type of printer, the ink flow (jet) passes through an injector in the inkjet print head. A pressurized electric resonator vibrates the ink stream and separates the stream into uniform drops. A discharge electrode is placed near the breaking point of the ink. The size of each drop of ink leaving the stream is proportional to the applied voltage load. Then, the charged droplets pass between the two deflectors and a high constant voltage current occurs between these two elements.