OpenIntents

Action: org.androidprinting.intent.action.PRINT
Input:
URI of the image to be printed, mime type of the image (must be of type "image/*")
Any application can use HP iPrint Photo for Android for printing images on nearby printers from Android phones.

HP iPrint Photo for Android phones: http://www.hp.com/global/us/en/consumer/digital_photography/free/softwar...
Wireless photo printing from your mobile device