In the current market, inkjet printers mainly include small character inkjet printers, handheld inkjet printers, laser inkjet printers, etc. Among these inkjet printers, handheld inkjet printers occupy a certain market share and are extremely competitive. What is the reason for its development? First of all, technically speaking, the development trend of handheld inkjet printers is becoming more and more portable and compact, functional and information-based, and lightweight and compact so that the staff can operate for a long time without fatigue; functional Improvement, such as the improvement of editing software, so that the staff can easily get started; and in terms of application scope, handheld inkjet printers are mainly used for large and large items, special-shaped, various types, frequent information changes, and variable marking positions, which cannot be achieved. It may be difficult to achieve large-scale, streamlined production conditions. For example, heavy industry enterprises, on-site construction teams, dealers without production lines, logistics distribution centers, etc. have promoted the rapid development of handheld inkjet printers. Hand-held inkjet printers are more representative of M3s handheld inkjet printers. This model has been successfully applied to industries such as wooden board, stone, carton packaging, steel pipe, ceramics, etc., and has a high degree of market recognition. It has become a popular model for large, medium and small enterprises in China. M3s has the advantages of one machine with multiple functions, high definition, stable performance, fast printing speed, long service life, clear writing, low power consumption, economical consumables, and easy operation. It is small in size, powered by a lithium battery inside, and can be used for more than 12 hours of continuous standby. It has an external ink cartridge and a fully enclosed ink circuit, which is very suitable for non-production line products and occasions that require frequent changes in information.