Perfect clean cuts?

Ive read that is not possible to get rid of the burnt edges of laser cutting wood. “Laser cutting means burning”…. But I have a 3D printer (Ultimaker) that came disassembled, laser cut wood panels. ive got the full panels with the parts inside, clearly not sanded edges or any other treatment.

So my question is, how they get such clean edges (first picture), while my edges are black (second picture)?

Ive tried different woods, also tried with higher pressure air, but I cant get better results :(

Mine is a Sculpfun diode 20w, but also tried with 40w CO2. Could even try with a 150w CO2 if that could help.

How Ultimaker achieve such great results?