Under Scanning -> File & Registry Scanning, add:
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows\Device
Then create a report with the following:
Select Top 1000000 tblAssets.AssetID,
tblAssets.AssetName,
tblAssets.Username,
tblAssets.Domain,
Left(tblRegistry.Value, CharIndex(',', tblRegistry.Value)) As 'Printer Name',
tblRegistry.Lastchanged
From tblAssets
Inner Join tblRegistry On tblAssets.AssetID = tblRegistry.AssetID
Where
tblRegistry.Regkey Like
'%Software\Microsoft\Windows NT\CurrentVersion\Windows%' And
tblRegistry.Valuename Like '%Device%'
Order By tblAssets.AssetName
This will give you the Assetname, Username, and current default printer association for the user.