as an old roland user..........
#1. ROLAND didnt make a 15" plotter. they made a plotter that was 15", 18, & 20" model # PNC-1000 and the next one they made was a PNC-1000A, this one hada adjustable pinch rollers so you could cut vinly 2" to 20".
if this is what your calling a 15" plotter it is...