I just got iRealb on my iPad3, got 100's of songs, now moving on to Printing some.

I made both printers on my network, one wired, one wireless as "Share this printer on the network" in System Preferences / Print & Scan. Be sure "Printer Sharing" is on.

Then, download and install handyPrint (AirPrint Activator) from http://netputing.com/handyprint/

As my printers were "shared" they showed up in the handyPrint list, then were shown as available "AirPrint" printer list that iRealb presents. Then it prints like anything on my Mac would. I am confident all my other iPad apps will print as well which is a bonus.

The product is sold on a try-then-donate. It works fine for me, so I made a small donation to get an unlock key, as it was worth it for me.

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Mac OS 10.8.2
Intel i7 64bit
HP 1320 - wired
EPSON NX420 - wireless