Print from php to different mini-printers

Hi, I'm doing a project with php, mysql using mini-printers ... so far I've already managed to print on the server machine called " SERVER " and the printer is called " > PRINT1 ", this is the code I use and everything is fine

require '../LIB_IMPRIMIR/autoload.php';
use Mike42\Escpos\Printer;
use Mike42\Escpos\PrintConnectors\WindowsPrintConnector;

$connector = new WindowsPrintConnector("smb://SERVER/PRINT1");
$printer   = new Printer($connector);
$printer -> text("HOLA\n");
$printer -> feed();
$printer -> cut();  
$printer -> close();
exit();

but now what I want to do is send to print other mini-printers that are connected to other machines: "Machine1", "Machine2", etc each with a mini-printer, but I can not send to print the code what use is something like that

require '../LIB_IMPRIMIR/autoload.php';
use Mike42\Escpos\Printer;
use Mike42\Escpos\PrintConnectors\WindowsPrintConnector;

$connector = new WindowsPrintConnector("smb://MAQUINA1/PRINT2");
$printer   = new Printer($connector);
$printer -> text("HOLA\n");
$printer -> feed();
$printer -> cut();  
$printer -> close();
exit();

What is missing or should I do?