In the process of using the photo machine, sometimes the nozzle is blocked. If the nozzle is not inked, the color of the picture content will be lost, which will affect the picture quality and yield of the photo machine. How to reduce the plug to the minimum? It is more helpful to maintain the machine and improve the quality of printing picture to understand the reason of nozzle blockage The four factors that lead to the blockage of the nozzle of the piezoelectric photo machine must be noted:
1. Damage factors of piezocrystal in the nozzle of photo machine
The piezoelectricity photo machine mainly relies on the physical change of piezoelectric crystal to control the ink-jet process. The service life of a photo machine nozzle should be more than one year, and it can print about 20000 ㎡. If it is overloaded for a long time, the internal components are often damaged due to large loss. The phenomenon of fatigue damage of piezoelectric crystal in the photo realistic machine is that the nozzle sometimes sprays ink and sometimes does not spray out ink, especially when the amount of ink-jet is large (that is, when the dark picture is sprayed), the phenomenon of "blocking" is obvious. At this time, the best way is to replace a new nozzle.
2. Clogging factors of filter screen
The oil ink of outdoor photo machine is generally made of pigment with large particle size. The filter screen in the nozzle is blocked, resulting in no ink from the nozzle. If the nozzle is used for a long time, especially in the factory where the painting task of the inkjet machine is not full and often stops at night, the ink will not flow in the nozzle for a long time, and it is easy to adsorb on the inner filter screen or the wall of the ink channel, so that the cross-sectional area of the ink flow becomes smaller, resulting in no ink from the nozzle.
3. Ink problem
The compatible inks used in different photo machines are also different, and the materials used in inks produced by different manufacturers are also different. In order to speed up the printing speed of the photo machine and make the ink dry quickly, ink manufacturers often add relevant desiccant in it. Some manufacturers' ink is easy to cause ink blockage outside due to improper control of the amount of desiccant. Although the ink can be cleaned, the cleaning time interval is relatively frequent. Once the nozzle is not used for a long time and the nozzle is not protected in time, the ink manufacturer will The next painting may cause permanent damage to the nozzle. Therefore, it is wise for users to choose high quality original ink. In addition, the manufacturer of Wuteng photo machine in Shenzhen suggests that users of the photo machine should avoid mixing different brands or batches of ink, so as to protect the nozzle of the photo machine as much as possible and make the photo machine print better colors.
4. Environmental problems
The use environment of the photo machine also has a great impact on the nozzle. As you know, the temperature is different all the year round,