how to send qr print vai bluetooth socket in xamarin?

try
{
var barcodeWriter = new ZXing.Mobile.BarcodeWriter
{
Format = ZXing.BarcodeFormat.QR_CODE,
Options = new ZXing.Common.EncodingOptions
{
Width = 1000,
Height = 1000,
Margin = 10,
}
};

                barcodeWriter.Renderer = new ZXing.Mobile.BitmapRenderer();
                var bitmap = barcodeWriter.Write(text);
                var stream = new MemoryStream();
                bitmap.Compress(Bitmap.CompressFormat.Png, 100, stream);  // this is the diff between iOS and Android
                stream.Position = 0;

                byte[] imageData = stream.ToArray();

            using (BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter)
            {
                BluetoothDevice device = (from bd in bluetoothAdapter?.BondedDevices
                                          where bd?.Name == deviceName
                                          select bd).FirstOrDefault();
                try
                {
                    using (BluetoothSocket bluetoothSocket = device?.
                        CreateRfcommSocketToServiceRecord(
                        UUID.FromString("00001101-0000-1000-8000-00805f9b34fb")))
                    {
                        bluetoothSocket?.Connect();
                        //byte[] buffer = Encoding.ASCII.GetBytes(stream.ToArray());
                        outReader = new BufferedWriter(new OutputStreamWriter(bluetoothSocket.OutputStream));
                        outReader.Write(stream.ToArray().ToString());

                        //  bluetoothSocket?.OutputStream.Write(buffer, 0, buffer.Length);
                        bluetoothSocket.Close();
                    }
                }
                catch (System.Exception exp)
                {
                    throw exp;
                }
            }