Using Sync'd user ID's as admins for iPrint Appliance?

So I've just setup two iPrint appliances. They are working great so far. But I had to create a handful of new user ID's in o=iPrintAppliance for our helpdesk a desktop support people. I tried adding the sync'd user ID's to admin groups but they aren't recognized for iManager logins and such. What are the rest of you doing for admin and helpdesk ID's on iPrint Appliances? I'm interested in your thoughts and solutions.