Help - Voids on top sureface with PLA Matte and 0.2mm nozzle

I found a solution to wipe out the voids.
Here are the settings I used:

  1. Infill/Wall overlap: 100%
  2. Internal solid infill pattern: Concentric
  3. Top shell layers: 3
  4. Top shell thickness: 0.2mm

To covering the gaps in the outer wall, increasee overlapping infill.
And the infill must completely fill all gaps, so only the concentric pattern can be used.
Additionally, I set the top layer thinner because the shrinkage size is proportional to the amount of material.

Here is output. It might be more smoother if the ironing is enable.

Z-Axis wall is also smooth.

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