Print connector was not finalized. Did you forget to close the printer?

[mhaeeb]

Hello Dear

Please help me out here, When ever I try to execute print order function for testing purpose I am getting following Error

Print connector was not finalized. Did you forget to close the printer?

My Code is bellow (Laravel)

use Mike42\Escpos\PrintConnectors\FilePrintConnector;
use Mike42\Escpos\PrintConnectors\WindowsPrintConnector;
use Mike42\Escpos\Printer;
public function printorder()
    {
		  // $connector = null;
		  $connector = new WindowsPrintConnector("Black Copper BC-85AC");
		  $printer = new Printer($connector);
    	      try {
		  /* Print a "Hello world" receipt" */
		  $printer->text("Hello World!");
		  $printer->cut();
		  $printer->close();
              } catch (Exception $e) {
		  echo "Couldn't print to this printer: " . $e -> getMessage();
              }
    }

Please help me out. Thank you. I am trying to fix it from 3 days