Code
 private Image m_Image;
    private Int32 m_CurrentPage;
    private Int32 m_PageCount;

    private void Form1_Load(object sender, EventArgs e)
    {
        m_Image = Image.FromFile(".\\Test-2-Page-Image.tif");
        m_PageCount = m_Image.GetFrameCount(FrameDimension.Page);
    }

    private void printDocument_BeginPrint(object sender, PrintEventArgs e)
    {
        m_CurrentPage = 0;
        m_PageCount = m_Image.GetFrameCount(FrameDimension.Page);
    }

    private void printDocument_PrintPage(object sender, PrintPageEventArgs e)
    {
        m_Image.SelectActiveFrame(FrameDimension.Page, m_CurrentPage);
        e.Graphics.DrawImage(m_Image, 0, 0);
        ++m_CurrentPage;
        e.HasMorePages = (m_CurrentPage < m_PageCount);
    }

    private void btnPrint_Click(object sender, EventArgs e)
    {
        printDocument.Print();
    }
}