Nowadays, if the auto parts are broken, not only can they be purchased online and delivered to the door, some of them can also be directly packaged and installed and traded in, which saves costs and is more convenient and faster. In the entire auto parts industry, the variety of auto parts is dazzling, and the quality of the products of various auto parts manufacturers is also uneven. Generally, the industry and laws and regulations stipulate that manufacturers must indicate the origin specification, manufacturer and other product information on the packaging or outer box of the product, which facilitates supervision and better protects the interests of consumers. At present, regular domestic auto parts manufacturers will use inkjet printers to clearly mark their own parts. It can not only establish a brand image, but also play an anti-counterfeiting effect. The printer prints serial numbers or special graphics randomly, so that each part can be directly identified, or inquire in the computer according to the printed number. Effectively control the circulation of non-original products and protect the legitimate interests of manufacturers. Due to the relatively high price of laser printers, it has increased the cost of counterfeiters to a certain extent, and has played an important role in preventing the circulation of counterfeit and inferior products. Therefore, in the auto parts industry, coding technology has increasingly become the most effective anti-counterfeiting method. one. Now some large auto parts companies have established a full life cycle traceability system for auto parts to ensure the quality traceability of parts. Used to deal with defective products. In the factory, the number of products that have been assembled for a batch of parts, batch number, product flow direction, and product source materials can all be traced. And each part has a permanent unique identification, which is represented by a two-dimensional code, and its content can include information such as the company code, product model, and product serial number, which greatly enhances consumers' trust in the product. /div>