Laser on MDF is good,Paper notting

He lasers fine on MDF.
But on Photo paper, or just printer paper or Cardstock paper, it does nothing.
Is there a solution for that ??
2.5 Watt laser
bord Makerbase MK5 DLC v2.0

Better focus, lower speed, or higher power. With a visible light laser, any white material is reflecting most of the light, so it will not burn as well as something that is a little darker.

At 30% speed he does some, but not completely, at 35% speed he burns through paper.
At lowering speed and at 20% nothing happens.
thanks for the help

It works on slightly yellower paper.
So problem solved.
Thank you for helping

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