Make sure the printer supports AirPrint or has a compatible printing app
Connect the printer to the same Wi-Fi network as the iPhone
Turn on the printer
Open the app that contains the item you want to print
Tap the Share icon or the More menu
Tap Print
Tap Select Printer
Choose your wireless printer
Adjust print settings if needed
Tap Print
If the printer does not appear, restart the iPhone and printer
If needed, install the printer manufacturer’s app from the App Store
If needed, update the printer firmware and iPhone software
If needed, reconnect the printer to Wi-Fi and try again