This should work
Code
Dim CurrentPrinter As String
CurrentPrinter = Application.ActivePrinter
If Application.ActivePrinter <> "NPI140D8A (HP LaserJet 400 M401n) on Ne00:" Then _
Application.ActivePrinter = "NPI140D8A (HP LaserJet 400 M401n) on Ne00:"
wsO.PrintOut ''/// use PrintPreview if you want to view before printing
Application.ActivePrinter = CurrentPrinter
Your code has a comma in it. It should be just ws0.Printout