The system of the first inkjet printer is very simple in appearance and structure. It is driven by an air pump to drive the inkjet printer to the ink path pressure of the inkjet printer. It can generate ink pressure by air pressure and produce ink droplets through the spray cavity. Jet out. The structure is also very simple, and the operator directly controls the machine. In most cases, it is relatively stable. After that, the second generation appeared. Built-in pump inkjet printer system. This technology was born a few years ago. It is driven by a gear pump, but the structure is more complicated. Because the pressure is controlled by the servo motor, it can issue instructions to some special actions, and it also uses more It is a complex programmable control. The second generation will install more wiring layouts and more programmable control input and output devices. These devices are huge and complex, with more sensors and program controls, and even more peripheral equipment; but the more difficult is the troubleshooting and handling of printer faults. The current third generation integrates the so-called mechatronics concept, using servo systems and simple mechanical devices to achieve the purpose of performing complex actions. The goal that the designer pursues is: the machine price is cheaper, the printing speed is faster, the performance is better, and the volume is smaller. It is not surprising that there are constantly new technologies introduced according to the needs of users. The appearance of the inkjet printer is almost the same, and it is basically a large volume plus some keyboard for operation. The appearance looks like a small house. Although the appearance looks the same, the result is different, especially the system, which has evolved from large and simple to now small and complex. The system has gone from being simple at the beginning to being complex now, and its functions have gradually increased, meeting the needs of consumers and greatly promoting the development of the inkjet printer industry. Almost all machinery is without exception. In the process of continuous improvement and adaptation to the market, with the advancement of science and technology, more and more human technology crystallizations are added, and it is more as perfect as a work of art.