I presume here a quote is missing:
Code:

		Select
			Case ($LibraryPrinterRadioButton.Checked = "False") AND ($LibraryPrinterCheckBox.CheckState = -1)
				AddPrinter("10.48.55.72","Lexmark T640","\\s096-a290-01\sch030$\printers\t640.inf","Library Printer",0)
			Case ($LibraryPrinterRadioButton.Checked = "True") AND ($LibraryPrinterCheckBox.CheckState = -1)
				AddPrinter("10.48.55.72","Lexmark T640","\\s096-a290-01\sch030$\printers\t640.inf","Library Printer",1)
			Case ($ComputerLabRadioButton.Checked = "False") AND ($ComputerLabCheckBox.CheckState = -1)
				AddPrinter("10.48.55.71","Lexmark T640","\\s096-a290-01\sch030$\printers\t640.inf","Computer Lab Printer",0)
			Case ($ComputerLabRadioButton.Checked = "True") AND ($ComputerLabCheckBox.CheckState = -1)
				AddPrinter("10.48.55.71","Lexmark T640","\\s096-a290-01\sch030$\printers\t640.inf","Computer Lab Printer",1)
			Case $OfficePrinterCheckBox.CheckState = -1
				AddPrinter("10.48.55.70","Lexmark T640","\\s096-a290-01\sch030$\printers\t640.inf","Office Printer",0)
		EndSelect