Introduction: In recent years, QR codes have developed rapidly, and functions such as network links, barcode surfing, business activities, business card exchange, product traceability, anti-counterfeiting traceability, data encryption transmission, etc. can all be realized. With the development of two-dimensional codes, the demand for two-dimensional code inkjet printers is also increasing. It can be said that the world has entered the era of digital, network, and QR code, and the inkjet printer industry will enter a new round of development space. Two-dimensional code is an information technology that uses a certain geometric shape to record data in a pattern distributed on a plane according to a certain rule. Compared with one-dimensional bar code, radio frequency identification and other technologies, it has many technical and application advantages such as a small area to carry a large amount of information, lower printing and reading costs, stronger security and confidentiality, and higher recognition efficiency. Combined with the mobile communication network, the two-dimensional code can also provide various mobile application services, which is currently an important means of realizing the Internet of Things. Experts say that the application of QR codes has made many printer manufacturers optimistic about their development prospects, and manufacturers have begun to develop and produce coding equipment and application equipment related to QR codes. Of course, it will take a relatively long time for the QR code to be widely used and popularized. In the era of two-dimensional code, inkjet printers have achieved great development. Two-dimensional codes are inseparable from the inkjet printer industry. The application of QR codes to various physical products is the general trend, and the inkjet printer is currently the hottest marking equipment. The inkjet printer serves as a medium to assign product information to the product itself in the form of a QR code, which is the most realistic and economical and convenient identification. means. In the next few years, the world will enter the era of QR codes, which means that the inkjet printer industry will gain better development space. For the current inkjet printer industry, inkjet printer manufacturing technology will usher in a new revolution. As a brand-new automatic identification and information carrier technology, the economy and reliability of QR codes are being understood and recognized by more and more people. In the current inkjet printer market, some high-end models can fully meet the printing requirements of QR codes, so the wide application of QR codes is bound to contribute to the further development of the inkjet printer market.