The printer is a device that uses software to control the use of non-contact methods to identify products. According to the working principle, it is classified into continuous ink jet printer (CIJ) and drop on demand (DOD). The pace of research and development of new products to speed up Pen Maji mainly concentrated in beverages, beer, mineral water and other industries, but also began to wire and cable, food, cigarettes, batteries and other industries.

The function of the coding can not only be clear about its production date, but also can track potential problems and prevent counterfeiting. It can be said that the food industry is the largest market for printers. Current inkjet printers can be divided into two categories: ink jet printers and laser jet printers. Ink jet printers were developed early and the price is relatively cheaper than laser machines, still occupying the market leading position. The ink jet printer is divided into continuous ink jets and command jets according to the principle; small fonts and large fonts according to the font size; ultra-high speed, high speed, standard speed, and slow speed according to the printing speed; and the external air source is divided according to the power source. Internal air supply. Laser Marking Machines Waves It is understood that laser marking machines have become a new bright spot in the market.

Since the laser printer prints a permanent mark that cannot be erased, this permanent mark can help identify a particular product. The counterfeit product looks very similar to the genuine product, but because it is not laser coded, it can be easily identified. Therefore, the laser printer has an effective anti-counterfeiting function.