This is a problem with these printers and second pass K7 GO printing and some papers.
hmm . . . . not sure on QuadtoneRIP. I have front feed just barely working on an internal piezo driver but other things aren’t so that’s not an option yet. The problem with QTR is it does not allow front feed. Try rear-feed and see. I think it will take it but you need to test. This still might not fix the roller mark issues. These rollers can be pulled out. It would negate all printing on the last .56 inches (just like roll printers) but would give you a blemish free print.
Alternative is to use hahnemuhle art spray or Moab desert varnish (same thing). I tend to do this on anything 13" wide and smaller anyway . . . .