Whether the UV printer nozzle is really blocked or fake blocked, we should distinguish several blocking situations: first, the ink will block the nozzle hole outside after the nozzle accumulates to a certain extent; Secondly, the piezoelectric crystal is damaged: the piezoelectric crystal inside the nozzle is damaged, resulting in the nozzle can not spray ink.

Everyone must know that the performance of true blocking and false blocking is that the nozzle does not produce ink, so we just need to judge whether it is true blocking.

There are two methods to detect the true blockage of UV printer nozzle, one is to detect it directly with cleaning solution, and the other is to judge it through the detection line. If the nozzle is really blocked, the probability of repair is very low. In this case, you can wash the ink in the nozzle with special cleaning liquid first, and then find a small bowl or plate to pour a little cleaning liquid into it, so as to submerge the nozzle but do not touch the nozzle circuit board. After soaking for 12 hours, rinse it with cleaning liquid. If it can't be soaked for 12 hours, if it still can't be soaked for 12 hours, it will be basically scrapped.