I have seen this before and I cannot remember what is doing it. When he plots a 70" long drawing the first 1/3s or so is just blank paper, then it plots the last 2/3s. It is not like he windowed and missed something it is like it is missing the first part of the info in the plotter. Yet it still knows to roll out the paper... We set up the custom paper size in the pliotter settings and preview looks correct. I am thinking this was something to do with a PS driver in the past.
Oce Colorwave 300 (4 months old) plotting from AutoCAD 2013.
Andrew Warren CAD & Data Management Specialist Bridgestone Americas Tire Operations email@example.com