Simple Booth uses Apple's AirPrint protocol, which means your iPad and printer will communicate over a WiFi network at your events. The main requirement is that the printer and iPad are on the same WiFi network, which is what allows the two devices to communicate.
If you are having trouble connecting, there are a few potential causes.
The first step is to confirm that the printer has been set up properly.
Plug in and turn on the printer.
Make sure the iPad and printer (or your wireless print server device) are both on the same WiFi network.
If you have tried multiple networks that are "in range," make your iPad forget any network you don't plan to use.
If you're unable to print after following the steps above, we will first need to isolate the issue.
Is the printer working on its own? Try plugging your printer into a computer and printing a file that is saved to the computer (or something from the web works too).
If this "wired" print does not work, this suggests a problem with the printer itself. Check for firmware updates, and if applicable try deleting/reinstalling and/or updating your printer driver and printer firmware from the manufacturer's site.
This is sometimes more relevant for dye-sublimation printers, which require additional setup steps, but can help isolate a potential problem on any printer.
Is the WiFi network reliable? Once the wired test print from step 1 works, it is time to test the wireless connection. Open up the iPad's built in "Photos" app, select any image from your Camera Roll, and try printing it to your printer.
If you cannot select the printer in the Photos app or the print never reaches the printer, first make sure you're still connected to the same network on both devices (step 2 under "basic setup"!).
If both devices are on the same network but you can't print from the Photos app, this suggests a problem with the WiFi network. The issue might be a slow connection (which can happen on WiFi networks and hotspots), or the network may have a firewall or other security restrictions in place.
Connect to a second network if one is available, and try a new test print. If a second network is unavailable or unreliable, you might be able to use one of these alternative network recommendations. You may need to try a few networks before finding one that works reliably.
Remember to "forget" any network you don't plan to use during the event.
Is Simple Booth printing? Once the Photos app test print works, it is time to test your Simple Booth app.
As long as the Photos app test worked, Simple Booth should also be able to find your printer. It is not common, but if you are having trouble selecting your printer or printing at this point, please get in touch with our team!