Continuous Inkjet technology is used exclusively in industry and professional printing systems. The process, where there is no direct contact between the print head and the surface to be printed, is too complex and expensive for private use such as in a home office. In simple terms, the continuous inkjet (CIJ) process uses a high-pressure pump to transport a jet of ink into a nozzle. A piezoelectric transducer splits the jet into a wave of microdroplets which leave the nozzle at up to 5.0 bar. Complex electronics for charging and deflection ensure that the ink droplets reach their target.
The droplets not needed for printing text are channeled into a collector by means of negative pressure and returned to the ink bottle by means of a gutter pump. The process is ideal for printing on very uneven materials. Cable ID codes or expiration dates on cans, bottles and other packaging demonstrate possible uses for the CIJ process.