Need help with SC P9800

Good Evening. I hope that someone can help me ?
I have made a print, on japanese awagami washi Kozo papier. I am getting an negative effect when printing i am using K7 Matt Piezo. I have made prints before and they have been really great; <However? I am in a disaster. Monday I have an exhibition here in France, and I need to produce 3 prints 180cm x 110cm//
I thank you in advance


Dear David. Please upload a screenshot of your setup including the printer and curve you are using to print with.

best regards,