The inkjet printer is a high-tech product integrating mechanical and electrical integration, which uses charged ink particles and the principle of deflection by high-voltage electric field to print patterns, characters and numbers on the surface of various objects. Products are widely used in food industry, cosmetics industry, pharmaceutical industry, automobile and other parts processing industry, wire and cable industry, aluminum plastic pipe industry, tobacco and alcohol industry and other fields. It can be used to spray print production date, batch number, strip code, trademark pattern, anti-counterfeiting mark and Chinese characters. It is a powerful equipment for implementing health law and promoting packaging modernization.