public function UpdateImpresorasList()
 {
     $client = new Client();
     $crawler = $client->request('GET', 'http://10.128.2.16/tinta/printers.php?sort=printers.server&dir=asc');
     $nodos = $crawler->filter('td');
     $i = 1;
     $listaimpresoras = new Collection();
     foreach ($nodos as $key => $domElement) {
         if ($i == $key) {
             $i += 7;
             $imp = new \stdClass();
             $modelo_impresora = $domElement->nodeValue;
             $listaimpresoras->push($modelo_impresora);
             $impresora = Impresora::where('modelo_impresora', $modelo_impresora)->first();
             if (empty($impresora)) {
                 $impresora = new Impresora();
                 $impresora->modelo_impresora = $modelo_impresora;
                 $impresora->save();
             }
         }
     }
     /*foreach ($variable as $key => $value) {
     					# code...
     		}	*/
 }