If you can, check the rip software is showing the scale at 100%? Might be that by the time the rip software has added any crop marks ect along the edge the 1300MM is a tad too large for the substrate you’re printing onto?
We’d the same problem with our gr640 printing short. It turned out that the feed calibration settings needed adjusted to suit the media. Someone was playing with settings they didn’t understand!!!
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