Amigo sergue o script abaixo para resolver o seu ploblema , a instalação da impressora eo driver , modifique a linha onde esta localizado a impressora e abaixo o driver salve o arquivo como .vbs e execute .
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
objWMIService.Security_.Privileges.AddAsString "SeLoadDriverPrivilege", True
set objDriver = objWMIService.Get("Win32_PrinterDriver")
Set objShell = CreateObject("Wscript.Shell")
objDriver.Name = "Brother HL-5240 series"
objDriver.SupportedPlatform = "Windows NT x86"
objDriver.Version = "3"
objDriver.FilePath = "\\server\\share\\Printer_Drivers\\Brother\\HL 5240\\"
objDriver.Infname = "\\server\\share\\Printer_Drivers\\Brother\\HL 5240\\BROHL05A.INF"
intResult = objDriver.AddPrinterDriver(objDriver)
objShell.Popup objDriver.Name & " driver installed", 3, "Pre-stage Printer Driver By Andrew Barnes", vbInformation + vbOKOnly
Denis Faustino