Couple of thoughts..

Maybe there is a switch in PrintMig.EXE?

Digging on MSDN, there maybe some light in Win32_Printer?

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/win32_printer.asp

Looking under Status, we some some mention of users, under status.

HTH,

Kent
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