How to print to a network printer using IP address

Question

I want to print using IP address. I have followed example shared Print to a network printer using IP address but am unable to print. There is no error either. Here is the code I have written:

using System.Collections.Generic;
using System.Linq;
using System.Management;
using System.Net;
using System.Net.Sockets;
using System.Printing;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Threading.Tasks;

namespace PrinterManager
{
    public class NetworkPrinter
    {
        private readonly string ip;
        private readonly int _port;
        public NetworkPrinter(string IPAddress,int port)
        {
            ip = IPAddress;
            _port = port;
        }
        public void Print(string fileContent)
        {
            var client = new TcpClient();
            client.Connect(ip.ToString(), _port);
            System.IO.StreamWriter writer = new System.IO.StreamWriter(client.GetStream(), Encoding.UTF8);
            writer.Write(fileContent);
            writer.Flush();
            writer.Close();
            client.Close();
        }
    }
}

Just to mention, am using HP Color LaserJet Pro MFP M177fw.