Some of my medias decide to ripple with the heat in the printer how can I resolve this. It comes out crinkly and uneven and doesn't remain flat. Is there a way to resolve.I assume the heat is very high but if the heat is lower than it might not cure the ink so what's the best way to resolve and know how to do this?

You have to lower the heat and if the ink's not drying you have increase the number of passes.