Focusing on QR code marking inkjet printers, it can provide companies with cost-effective solutions to help companies provide decision-making basis in production, management, and marketing, and achieve comprehensive traceability. QR code is required first, whether it is the front-end CNC of the factory Control, one item, one code has the characteristics of uniqueness, randomness, security and undecipherability, which can be realized by means of labeling, packaging material integration, and coding. One item, one code food inkjet printer is for each product Establishing their own two-dimensional codes can realize data code assignment in various industries. The use of the QR code on the product packaging clearly reflects the need for further improvement in the technology of the marking industry. For the one-object one-code food inkjet printer, which is an important identification device, it is no longer a problem to print variable QR codes in the food industry. The important thing is that the inkjet rack is installed on the production line to synchronize the work speed and improve the work quality. Arnoldage has launched an ultra-high-speed UV inkjet printer (X9) very early, which is a high-end model in the industry. It has good printing effects when applied to QR codes, patterns, and quantum cloud codes, and the recognition rate of QR codes can also reach 99% is worthy of the industry’s support and ownership. The so-called one-item one-code functional service can achieve anti-counterfeiting, anti-channeling, traceability, promotion, fanning, big data, especially the stable construction and promotion of food safety. Thanks to the development of information technology, it is a relatively important trend at present. It is the popular use of QR codes. The two-dimensional code printed by the one-object one-code food printer developed and produced by the mechanical identification equipment industry can carry a large amount of information and has a unique advantage in anti-counterfeiting and traceability. According to the situation, the application of variable QR codes in industries other than food is also increasing.