Save the trees! You don't need to print off your tickets for entry. Our system allows organizers to scan the ticket PDF's directly from your phone, but of course you can print them off if you really want.
If you're using your phone, make sure the brightness is turned up and your tickets are open and ready to be scanned.
The full barcode of the ticket needs to be clearly visible on your screen (ie. not cut in half, not fuzzy) in order to be scanned for entry.