bytes = text.getBytes("CP437");

public static void main(String argv[]) throws Exception {
        Socket clientSocket = new Socket("192.168.1.199", 9100);

        OutputStream oStream = clientSocket.getOutputStream();

        
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        String text = "цуйцуйцу\n\n\n\n";
        out.write(27); // ESC
        out.write(116); // t
        out.write(17); // 866 codepage
        out.write(text.getBytes("CP866"));
        byte[] bytes;
        bytes = out.toByteArray();
        oStream.write(bytes);


        clientSocket.close();
    }