In the last couple of months we’ve acquired more iMacs and most of them came with Snow Leopard pre-installed and, being newer machines, will not take 10.5 system. Snow Leopard is great – quick, responsive but there are some challenges.
One of them was our Kerio Mail Server, which has been addressed in one of the Kerio updates. But most recent one, and more annoying is drivers for our Xerox 242 WorkCenter. Once drivers installed and user tries to print, it will give them error message saying that drivers might not be installed properly and require re-installation.
No matter how many times you try to reinstall, what user you install them as, or how many times you repair permissions on the drive, it seems not work properly.
Quick search on Apple Discussions leads to several similar problems with other printers’ drivers problems under Snow Leopard. Solution is repairing permissions, but not the usual way, actually, but using sudo
sudo chown -R root:admin /Library/Printers/
Just make sure you add your printer’s manufacturer folder after /Printers/
So Xerox will be:
sudo chown -R root:admin /Library/Printers/Xerox
Hope this helps as it did work for me.