I Need Help-Want to Print From iPad 1 and i4s

[chokem]

Im confused. I've found an HP 5510 printer at Best Buy, that is Apple AirPrint friendly. I'm looking in the app store for the AirPrint app and it is not listed. Is this a pre installed app only on the ipad2? I have an iPad 1 running 5.0.1 and a 4S running the same OS. Any light anyone can shed on this would be greatly appreciated. Will I be able to print from my iPad and my 4S?

 

[chokem]

I found it. I was looking for an AirPrint icon and it is an app/capability within the media share choices such as tweet, send to printer, etc. Both my devices are air print friendly.