What a problem this was! We had a user with a MacBook Pro that had a new copy of Macintosh OSX Mountain Lion 10.8.2 running on it. Plugged in a rinky-dink HP LaserJet 1505 and nothing. Even though there was the exact same printer installed before, from the user’s home, the system refused to reuse the connection for the printer at work. Obviously that has to be because the system notices it’s a different device and refuses to play along, which I find stupid.

Plug in the printer, try to add it, and the Add Printer function goes out to Apple Software Update to look for the driver and then comes back and tells us that nothing is available. Then commence zombie debugging via muzzle flare, wandering around in the dark trying to fix what shouldn’t be happening but apparently is beyond all logic and reason.

So how you do diagnose a Mac? Here’s a handy-dandy guide which anyone can use to fix their Macs. I seriously doubt any issues ever survive this particular procedure:

1. Clear PRAM – Turn off computer, turn on computer while holding down  Command-Option-P-R. The computer will restart and you’ll hear the startup chime twice. Let go of the keys. ~ For this, just do it. It doesn’t matter if you don’t think doing this will fix your problem, it will. Just shut your pie hole and do this. If you don’t do it, I don’t want to hear about your problems. It’s magical. I don’t care if Apple says it won’t do anything. This thing DOES EVERYTHING IN CREATION – apparently. That and it cannot hurt. Lots of fluids and plenty of bed-rest. 
2. Repair Disk Permissions – Start Disk Utility, find your “Macintosh HD” and click “Repair Disk Permissions” and wait. Do this. Often. Regularly. Lots. Weekly. Now.
3. Download Onyx. Pick which version of OSX you are using, download it, install it and use it. I recommend skipping everything it wants to do and going right for the Automation button. Uncheck “Repair Permissions” and “Display of folders content” and check the rest. Click Execute and wait. When the system asks for a reboot. Reboot. Everyone should do this weekly. Think of it like vitamins for your Mac. Plus, it can’t hurt.

At this point your system should be all spic and span and whatever niggling bit was bothering you should be dealt with. Of course, for the problem I had to deal with at work, there is one little thing extra, one thing more. Open Finder, click Go on the Menubar, then Go to Folder… and type in /Library/Printers and click Ok. You’ll see a list of folders. In this list find the folder named “hp” and KILL IT WITH EXTREME PREJUDICE. Y’arr! This !@#$ folder is at the very center of my hatred for all that is Hewlett-Packard. I’ve started to unceremoniously refer to them as Fudge Packard. Bastards. Anyways, killing the folder does the trick, it clears everything up and Mountain Lion can download software from Apple again for the HP Drivers – blah blah blah. I’d rather just get a sledgehammer and pound the HP LaserJet 1505 into foil, but hey, you have to cope or have some sort of attack. I regret buying HP. I regret the LaserJet 1505. What a piece of crap. Steaming.