I am having an issue with some ultraflex 10oz banner material on my roland vs540. I printed some banners, and even after a week of sitting around, the banners stick and the ink transfers if/when the banners are ink to ink. These are being sewn into canopies, so for shipping they need to be inside out...so theres my issue. Any ideas...settings....anything I should try tweaking? I use roland versaworks, standard light weight vinyl banner profile.