Printing from your iPhone (or other iOS device) is a relatively painless process. In the example below, we'll demonstrate how to print a document from the Google Drive app, but it's pretty similar with most other iOS applications.
1. Open the Google Drive app and find the document that you'd like to print. Tap on the three vertical dots next to it:
2. Scroll to the bottom of the menu and choose 'Print':
3. You'll be given a choice between "Google Cloud Print" and "AirPrint". Either option will usually work, but AirPrint is usually more reliable.
4. You'll see a simplified print dialog box. Select your printer and your options (2-sided?). If you need a refresher on how to find the name of the printer that you want to print to, this article will be helpful. After you've set up your options, go ahead and click 'Print' in the upper-right hand corner. Now, you just need to sit back and wait for your print job to finish.