Our Zebra ZP505 printer connect to a Mac was printing blank labels after following all set up advice from both ShipStation and Zebra including updating CUPS Settings. Finally found a solution to the issue. Zebra recommend using the ZPL driver which is the automatic default when you install this printer. The issue was solved by installing the the EPL2 Driver instead. Thought I would post here in case anyone else was having the same issue.
