Tunneling occurs on the thick media
For some media whose thickness (base material + glue + liner) is about 250 μm, tunneling may occur.
Tunneling is the phenomenon in which a liner separates from its base material. This situation occurs when the media tension at the squeezing bar on Roll Winder RW-201 is too high.
If tunneling occurs, adjust the angle of the squeezing bar following the steps below.
Open the top cover of Roll Winder RW-201.
Loosen the thumbscrews of the squeezing bar and move the squeezing bar to "2".
Tighten the thumbscrews.