Learn how to print from your iPhone or iPad to an AirPrint-enabled printer.
3 Ways to Print From Your iPad - CNET
Canon : PIXMA Manuals : Printing from AirPrint Compliant Device
Printer Support AirPrint
How to print from iPhone when AirPrint isn't working?
Apple Platform Deployment - Apple Support
How to Use AirPrint to Print from Your iPhone or iPad
How to Print from iPhone to HP Airprint
Apple AirPrint: Wireless Printing for (Almost) Everyone?
Use AirPrint to print from your iPhone, iPad, or iPod touch - VCFA