Use AirPrint to print from your iPhone, iPad, or iPod touch

Make sure that your iOS device and your printer are connected to the same Wi-Fi network and you're within range.
Check that your printer supports AirPrint.

Open the app you want to print from.
To find the print option, tap app’s share icon, or , or tap . If you can’t find the print option, check the app’s User Guide or Help section. Not all apps support AirPrint.
Tap or Print.
Tap Select Printer and choose an AirPrint-enabled printer.
Choose the number of copies or other options, like which pages you want to print.
Tap Print in the upper-right corner.

While printing, you can view your print jobs or cancel them through the App Switcher.

To view a print job, double-click the Home button and tap Print Center.

To cancel a print job, double-click the Home button, tap Print Center, then tap Cancel Printing.

Check these things if you see the message "No AirPrint Printers Found” or have issues printing:

On your iPhone, iPad, or iPod touch, check that your device has the latest version of iOS and that the app you're printing from is up to date.
Check with your printer's manufacturer to see if any firmware updates are available for your printer model.
Connect your AirPrint printer to your network using a Wi-Fi network or Ethernet connection. AirPrint devices connected to the USB port of an Apple AirPort Base Station or AirPort Time Capsule, or to your computer using Bluetooth connection, can’t use AirPrint.
After you turn on your printer, wait a few minutes before you try to print. Some printers might take a minute or two after powering on before joining your network.