Can laser marking machine code on paper?

You can't use plastic paper,

The paper must be flattened, and the curved surface will cause the paper to miss or burn through.

The energy should be low, otherwise it is easy to burn through the paper.

Negative defocus coding, not easy to burn paper.

The energy is adjusted from small to large, and the thinner the paper, the smaller the energy, and the trial adjustment is started.

Don't set the pulse too high, too much heat per unit time will still ignite the paper.

It is very important to pay attention to fire prevention when coding. Paper is flammable.

Generally speaking, ordinary paper can be painted yellow, and thick paper can be painted black with a little force.