spot printing in c#

using System.Drawing.Printing;
using System.Drawing;
using System.IO;

namespace WindowsApplication1
{

    public partial class Form3 : Form
    {
      private System.ComponentModel.Container components;
        private System.Windows.Forms.Button printButton;
         private Font printFont;
          private StreamReader streamToPrint;
        PrintDocument printDocument1 = new PrintDocument();


        public Form3()
        {
            InitializeComponent();
           
          printDocument1.PrintPage += printDocument1_PrintPage;
        }

  private void printButton_Click(object sender, EventArgs e)
        {
          using (PrintDialog pd = new PrintDialog())
            {
                if (pd.ShowDialog() == DialogResult.OK)
                                    printDocument1.PrinterSettings = pd.PrinterSettings;
                    printDocument1.Print();
                }


 void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
                       Font objFont=new Font ("Microsoft Sans Serif", 10F);//sets the font type and size
            float fTopMargin = e.MarginBounds.Top;
            float fLeftMargin = 50;//sets left margin
            float fRightMargin = e.MarginBounds.Right - 150;//sets right margin   
string employee_id = String.Concat("EMPLOYEE ID:-  ", comboBox2.Text);//prints EMPLOYEE ID:- and text in combobox2
      string employee_name = String.Concat("EMPLOYEE NAME:-  ", textBox8.Text);
 
e.Graphics.DrawString(employee_id, objFont, Brushes.Black, fLeftMargin, fTopMargin);
           
 fTopMargin += objFont.GetHeight() * 2;//skip two lines
          
 e.Graphics.DrawString(employee_name, objFont, Brushes.Black, fLeftMargin, fTopMargin);
        
 objFont.Dispose();
          
 e.HasMorePages = false;
        }