You can print from your smartphone or tablet using Google Cloud Print, which is great apart from two limitations:
- Unless you are prepared to pay for a printing app, you can only print from Google Apps. This is not so much as a problem as many files on your phone can be uploaded into a Google App.
- To set up printing you need access to a computer running the Chrome web browser. Then in order to print from your phonew or tablet this computer need to be switched on.
For full instructions on how to set up and print from your mobile device see