Make sure that the printer mode is set to Bluetooth Mac by holding both Power and Feed buttons for 5 seconds. Red light will blink, and you will hear twice a bip, then the printer should print the selected mode. Redo these steps until it says Bluetooth Mac. Also make sure that the printer is in Star PRNT by following this guide
Enable Bluetooth on your mobile device
Select Star Micronics from the list of available devices
PIN should be 1234
In Star WebPRNT browser app, go into Settings and select your model and printer (use the StarPRNT version)
Navigate to Showtix4u.com website and log in
You can now Print using the Star Print buttons for tickets, coupons, and flex passes.