GPO Druckerverteilung - Gleichen Drucker doppelt installieren

$ComputerNameList ="testclient1", "testclient2"  
$PrinterList = @("\\testsrv\printer1- Normalpapier","\\testsrv\printer1-  Rechnungspapier")   
$DefaultPrinter = 0
function ConnectPrinters($printers) {
    foreach($printer in $printers){
        $server = $printer.Split("\")[2]  
        while((test-connection $server -Count 1 -Quiet) -eq $false){
            write-host "Warte auf Verbindung zu Printserver: $server ..." -ForegroundColor Yellow  
        }
        $result = ""  
        while ($result.ReturnValue -ne 0){
	     $result = ([wmiclass]"Win32_Printer").AddPrinterConnection($printer)  
        }
        write-host "Drucker: $printer wurde verbunden." -ForegroundColor Green  
    }
}

function SetDefaultPrinter($DefPrinterName){
    (Get-WMIObject -ClassName win32_printer |Where-Object -Property Name -eq $DefPrinterName).SetDefaultPrinter()
}

foreach ($i in $ComputerNameList){
   if ($i -eq $env:computername){
      ConnectPrinters($PrinterList)
      SetDefaultPrinter($PrinterList[$DefaultPrinter])
   }
}