If you use the AirPrint app to print your items, the first thing is to go to your iPhone device and select the file, doc, image, or PDF that you want to print. Now, here is how to print on brother printer from iphone. First, click on the ‘Share’ icon and click on the ‘Print’ option. Now, the device will show you all available options of printers. Now, select your printer, and the print settings will be shown in your app. You can modify these settings according to your requirements. The application also provides an option to print a range of documents in one go.