Sub ChangerPrinter()
Dim oldprinter As String, reponse
oldprinter = Application.ActivePrinter
Application.Dialogs(xlDialogPrinterSetup).Show
reponse = MsgBox("Imprimante précedente : " & oldprinter & Chr(10) & "Imprimante actuelle : " & Application.ActivePrinter, vbOKCancel + vbQuestion + vbDefaultButton2, "Changer d'imprimante ")
If reponse <> vbOK Then Application.ActivePrinter = oldprinter
End Sub