No one’s quite sure why — some up-in-the-air piece of intellectual property is the consensus guess — but Apple pulled a number of files from OS X 10.6.5, which prevents you from using a compatible iPhone, iPod touch or iPad (iOS 4.2 required) to print to a shared printer. Here are two ways to put that functionality back in.
First off, there’s the manual way and LifeHacker among a host of others has published how to install the three files you need to enable idevice printing to a printer shared on your Mac.
You’ll need to get the necessary files (HardMac) and then you need to install them thusly:
Lastly, remove the printer in the System Preferences Print & Fax pane. Add it back in and you should be good to go.
And, then there’s Netputing’s AirPrintHackivator, which comes with the following warning:
WARNING! USE AT YOUR OWN RISK! It is working fine for me but don’t come crying if it break something on your Mac… mmmkay!
They have posted the full contents of the AppleScript used, which you can dutifully compare to what you’ve downloaded should the need grip you.
That said, you’ll still need to remove the printer in System Preferences and add it back in to make this all work, no biggy…