Double mark

I have this “double” mark.

The separation between the dot and the mark is bigger when head is at rightmost position.

It is not the lens: I have remove it and the mark is also.

As you see in the photo, also the cut is marked.

Here’s my suggestion to help diagnose:

  1. Remove the lens (and nozzle, if your machine has an air assist nozzle)
  2. Put tape underneath where the lens would be
  3. Mark the circle of the lens tube on the tape
  4. Test-fire to mark the tape
  5. Upload a good picture of the tape