The machine is very important to the printing factory, so the maintenance of the equipment and maintenance is very important to the enterprise. The maintenance and repair of the equipment is something that the operator must face every day. If the machinery and equipment are not regularly and reasonably maintained In the long run, it will not only affect the life of the machine, but also cannot print fine prints. Therefore, equipment maintenance and repair are the basis for ensuring the service life of the machine, improving the utilization rate of the equipment, and maintaining stability. Generally, the maintenance of printing equipment is at night, or during the normal national holidays of the printing factory. When the business is not very busy, the equipment can be shut down to maintain the equipment. Only in this way can the printing factory be maintained profitably. The maintenance of the equipment is also based on the workload and difficulty. The degree of maintenance is divided into daily maintenance, first-level and second-level maintenance, etc. For printing equipment, it is also very important to implement the "three-level maintenance system"! In daily life, we will carefully check the equipment when the night shift and the day shift are handed over, wipe all parts and add lubricating oil, so that the equipment is often kept neat, lubricated and safe. Make inspection records, check whether there is a fault in the shift, etc., report the fault in time, participate in troubleshooting, record the fault time, and then confirm the maintenance effect. Printing presses generally have several maintenance points that need special attention: 1. Pressure roller The pressure roller of the printing press is not clean, and the printing pressure is not uniform during the production process. It is common for the pressure roller to have tape or dry ink on it, so that the height of the pressure roller becomes higher, resulting in increased printing pressure. The most common quality accidents are blurred printing and unclear articles or pictures. Therefore, the pressure roller must be kept clean. Second, the printing plate cylinder The plate cylinder is not clean, and the printing plate pressure and printing pressure will be affected during the production process. Common situations include tape and dry ink, as well as bumps on the pad. This production will directly increase the height of the printing plate, resulting in inconsistent height of the printing plate, resulting in blurred printing, unclear dots, and ghosting. 3. Ground rail The cleaning of the floor rail is the easiest to ignore. If the floor rail of the printing press is not clean for a long time, it will affect the parallelism of the printing unit. The non-parallel ground rails of the unit directly affect the printing accuracy, so high-end printing machines have very high requirements on the ground rails. So the ground rails must be cleaned every day. 4. Anilox roller and ink tube surface The anilox roller is the heart of the printing machine. If the anilox roller is not clean, it will cause the printing to be white and the color will be inconsistent. Therefore, the anilox roller must be cleaned and maintained every day, instead of being blocked and then maintained. The maintenance of the anilox roller is daily maintenance. When the anilox roller is not in use, the plate washing liquid or laundry should be used for circular cleaning and daily cleaning, so as to ensure the printing quality. Maintenance through the above aspects is only a part of it. The printing structure and so on are all sophisticated machines. If there are some failures, we need to ask professional maintenance personnel to disassemble the machine for maintenance. Secondly, different equipment maintenance methods should be formulated according to different machines. It is to ensure the improvement of the printing machine and the improvement and stability of the product.