As a marking device closely integrated with the production line, the inkjet printer has a long production time, a complicated production environment, and a long-term high-load state. The inkjet printer itself has complex construction conditions and precise structure, and some materials need to be carefully maintained and handled during use. Due to the production characteristics of the inkjet printer and its own structural characteristics, the inkjet printer has higher requirements for daily maintenance, and some details of the inkjet printer itself need to be paid attention to from time to time. Proper daily maintenance of the inkjet printer will greatly reduce the frequency that the inkjet printer needs to be repaired, and it can also effectively extend the working time of the inkjet printer. However, the reason why professional inkjet printer manufacturers in the industry attach importance to service is mainly because inkjet printers require technical support from professional engineers in terms of installation, technical training, replacement of parts and troubleshooting. The installation of the printer requires experienced engineers. Installation plays a decisive role in meeting the later production requirements. Experienced engineers will be able to adapt to the characteristics of the production line and the characteristics of identification objects. The technical training of the inkjet printer requires easy-to-understand and covers simple maintenance and troubleshooting. The replacement of parts and the handling of faults also require the printer engineer to have a wealth of theoretical and practical knowledge. What is more important for these services is that printer manufacturers can quickly and effectively solve all problems in a timely manner when they are equipped with these engineers, and can make solutions in a relatively short period of time, effectively saving customers' time.