UGH!
The UGLY principle. Fine for ACL'ing local resources but sucks for this task. Back to the drawing board.

If you look in the reg key HKEY_CURRENT_USER\Software\KiXtart\TokenCache for that user, what local printer groups if any show?
_________________________
Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.