how to use wmi for print server in c#

static void GetpriterDetails()
        {
            bool online = false;
            string strQuery = "SELECT * FROM Win32_Printer";

            ObjectQuery objectQuery = new ObjectQuery(strQuery);
            ManagementObjectSearcher query = new ManagementObjectSearcher(objectQuery);
            ManagementObjectCollection queryCollection = query.Get();

            foreach (ManagementObject managementObject in queryCollection)
            {
                if (managementObject != null)
                {
                    string str = string.Empty;
                    string printerName = "\\\\SEBP20\\WiproEX3";
                    str = managementObject["Name"].ToString().ToLower();
                    if (!str.Contains('\\'))
                    {
                        string MyPCname = string.Empty;

                        if (printerName.Contains('\\'))
                        {
                            string[] MyPCname1 = printerName.Split('\\');
                            MyPCname = MyPCname1[2];
                        }

                        str = "\\\\" + MyPCname + "\\" + str;

                    }

                    if (str.ToUpper().Equals(printerName.ToUpper()))
                    {
                        if (managementObject["WorkOffline"].ToString().ToLower().Equals("true") || managementObject["PrinterStatus"].Equals(7))
                        {
                            //--it's offline
                            online = false;
                        }
                        else
                        {
                            //--it's online
                            online = true;
                        }
                    }
                }
                else
                {
                    throw new Exception("No printers were found");
                }
            }
        }