Food safety affects thousands of households. When buying food, you must see the production date clearly, which has become the most basic common sense of consumers. However, the production date of some foods is not marked in an obvious place, or some only mark the production date on the outer packaging bag of the food, but it is not clearly marked on the packaging bag of the small package. According to media reports, a citizen selected a bread in the supermarket with a shelf life of 180 days and the date of production was written on the packaging bag. However, the citizen looked at the packaging bag up and down, but did not find it. In fact, this unobvious production date exists on many commodities. In order to ensure the safety of food, relevant national laws and regulations have made clear requirements for the production date of food. All food must be printed with the production date and placed on the outside of the food packaging. Most food companies have implemented this regulation fairly well, and will mark the production date of their products as required. However, because there is no detailed standard for the setting of the production date, and no clear requirements for the font, font size, and location, a lot of trouble has occurred. The printing of the production date on the food packaging is clear and conspicuous, which can better maintain the brand image. As consumers, products with complete packaging and clear codes will increase their trust. Therefore, Rottweil recommends that manufacturers use stable and reliable inkjet printers to clarify the location of the packaging logo so that it can be clearly displayed. It will bring certain benefits to the development of the enterprise itself. Choose a reliable printer manufacturer to make the coding operation stable and the marking clear and wear-resistant.