Skycolor UV printer led lamps emit ultraviolet rays during the printing process. When ultraviolet rays are combined with UV ink, chemical reactions will occur to achieve solidification. There are two reasons for UV LED lamp not lighting. One is that the led lamp itself is broken; the other is that the connection circuit is broken.
The led light itself is broken:
1. The quality problem itself, if it has not reached the service life, it should be scrapped in advance.
2. The protection device has a problem, and the cooling system cannot operate normally, causing the lamp heat to be too high and causing burnout.
3. Man-made mistakes, no external protection device added, resulting in collision damage.
4. The circuit system of some LED lights is mixed with the board circuit of the machine head, which results in the increase of local voltage and current, and it is easy to cause short circuits and burn out.