I must change the laser module?

I attach the test laser photography. in practice it is a line , not a point, the laser is defective ? I have to clean all the mirrors ?
Thanks in advance for your answers .

That looks like a dirty mirror to me.

Thank you. Unfortunately, it is instead the laser module. I dismounted and pointed directly on the wall, no mirrors so: generates a line, not a point.

In that case you should submit a support ticket.

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