[news:entitle] -杏耀注册

[news:entitle]

approach:

1) check the lens is dirty;

2) whether the laser focal length in the range

3) whether the laser film film is damaged;

4) whether the laser light is dislocation;

5) whether the laser fixture light block;

6) laser power is too small or laser speed too fast;

7) whether the exhaust air exhaust, such as air does not lead to excessive temperature inside the chassis so that the laser generator heating power decreased;