Printer can't find crop marks on micro perf

[Bryce I]

I have a bunch of large spot graphics going on windows. printed on micro perf with crop marks, laminated, but the printer (roland vg-2) doesn't recognize the crop marks. The perf I used has clear backing. I thought that was causing it, so i peeled up the corner and stuck some white vinyl under the crop mark between the print and the backing. Still nothing, I think it's the holes in the perf material that are confusing the scanner? Anyone run into this, or have any tips for crop cutting laminated material printed on micro perf? Thanks!

 

[Boudica]

my go-to solution for this and similar non-cropmark-reading scenarios - I cut little circles out of black vinyl, the size of the marks, and put them over the printed marks.