Curled sublimation paper

[Legari]

Hello! I've acquired a ton of cheap kinda unbranded paper(it says Quaff, but I couldnt really find anything about the company itself), the ink release is terrific and the colors are neat, the one big BUT is that it comes curled already and I was wondering if there is any fix for this issue, because the print head tends to hit the paper, sometimes in the sides and sometimes even in the middle of the sheet. This last part happens sometimes with Textprint paper aswell but less frequently, I'm pretty sure that the curling(I'm not even sure if this is a real word) is the main problem here, yet the Textprint sheets aint curled and sometimes I can see some marks from the printhead, not as prominent tho.

So, TL;DR is there any pragmatict way to straight the sheets and what can I look into to prevent printhead traces on the Textprint paper aswell?

[Andrew]

If it is already curled then it will be a struggle. Preventing curling might be a different scenario. Depends on the level of curling, you could could the corners off on the side that is feeding through printer. This will reduce the highest points.

[Legari]

I've tride cutting the corners off, the thing is, it still hits the sides in the mid part : (