When I print film positives for a multi-colored job on my Epson 7010, the films do not always line up correctly. I alwasy print registration marks on all of my films (even 1-colored jobs as it helps keep the image straight when burning a screen) but about 70% of the time, they do not line up. I have to reprint until I get them right. I read on here that many people are using this same printer without any issues. How can I fix this? Or should I upgrade to the 1430?