sandboxd for CUPS backends in Mac OS X Yosemite
While this doesn't answer the question, I stumbled across this - http://www.papercut.com/kb/Main/MacOS1010YosemiteKnownIssues - when trying to get Tea4CUPS working in OS X 10.10 (I was not able to achieve this):


  To get PaperCut working with Mac OS 10.10 in the interim, you’ll need to disable sandboxing. Edit the file /etc/cups/cups-files.conf to include the new line ‘Sandboxing Relaxed’. Then restart CUPS for this to take effect.


sudo sh -c 'echo "Sandboxing Relaxed" &gt;&gt; /etc/cups/cups-files.conf'
sudo launchctl stop org.cups.cupsd