QTR-Quadtone RIP

I learned how to make palladium prints using digital negatives, printed using a QTR driver
at a workshop done with Kerik Kouklis at PF in Montana .


The first step of making calibration step wedges and creating printing profiles, here at home, seems to have gone ok.


However now that I am trying to make prints i am having a problem.


The Epson r2400 doesn't seem to recognize the thin Pictorico sheet using the top paper feed, so I am
taping the Pictorico to cardboard and using the front feed. The feeding part seems to work, but the print has a problem.


Once the digital negative print gets near the end (about .75 inches from the end) I get a black band, which of course is lighter
on the palladium print. I thought this was an aberration so I printed another digital negative, same problem but the band
is slightly narrower. I have uploaded a scan of the palladium print to an album, so you might see the problem.


Can anyone tell me why this is happening and How I can correct the problem.


thanks
Frank Eberdt