The improvement of living standards has gradually increased consumers' awareness of food safety. Because many consumers will first look at the production date and shelf life when shopping. The emergence of two-dimensional codes has made high-definition and automated two-dimensional code inkjet printers useful. In addition, printing complex graphics marked with food production company data, such as trademarks, one-dimensional codes, two-dimensional codes, etc., can also help food production companies achieve the purpose of combating counterfeit and inferior products and product traceability. The automatic two-dimensional code printer is a logo that can spray variable two-dimensional codes on products in all walks of life. The two-dimensional code inkjet printer adopts non-contact marking technology, which will not cause damage to the surface, and can be used in medium and large-scale production lines. It has the characteristics of high degree of automation, fast speed, and extremely low consumables, and the use of enterprises saves a lot of costs in terms of manpower and material resources. Therefore, two-dimensional code inkjet printers have also begun to be favored by more and more companies, and are slowly walking in the forefront of identification equipment. Powerful companies have basically begun to use QR code printers to print anti-counterfeiting QR codes. The function of the variable data QR code can not only effectively solve the internal information production and management construction of the enterprise, but also solve the problems of anti-sweeping, anti-counterfeiting and traceability in product sales. The use of two-dimensional codes to build enterprise internal informatization improves the production standardization of enterprises, and is more conducive to production and management. Therefore, two-dimensional code inkjet printers have played a considerable auxiliary role in various industries.