static void Main(string[] args)
{
IEnumerable<int> test = Enumerable.Range(0, 2000);
StringBuilder sb = new StringBuilder();

foreach (var t in test)
{
sb.AppendFormat("Test: {0} ", t);
}

PrintPreviewDialog dialog = new PrintPreviewDialog
{
Document = new PrintDocument()
};

string textoFinal = sb.ToString();
string stringCopia = textoFinal;
// Margins margem = new Margins(20, 20, 20, 20);
// dialog.Document.DefaultPageSettings.Margins = margem;

dialog.Document.PrintPage += (sender, e) =>
{
int caracteresNaPagina;

IEnumerable<int> test = Enumerable.Range(0, 2000);
StringBuilder sb = new StringBuilder();

string textoFinal;
string stringCopia;

internal void Imprimir()
{
try
{
foreach (var t in test)
{
sb.AppendFormat("Test: {0} ", t);
}
textoFinal = sb.ToString();
stringCopia = textoFinal;
printDocumento.PrintPage += printDocumento_PrintPage;
//Margins margem = new Margins(20, 20, 20, 20);
//printDocumento.DefaultPageSettings.Margins = margem;
printPrevisao.ShowDialog();
}
catch (Exception exp)
{
MessageBox.Show("Erro: " + exp.Message.ToString());

private void printDocumento_PrintPage(object sender, PrintPageEventArgs e)
{
int caracteresNaPagina;
int linhasPorPagina;

var Fonte = new Font("Arial", 9);

e.Graphics.DrawImage(Properties.Resources.logoI, 20, 20, 20, 20);

StringFormat alinhar = new StringFormat(StringFormatFlags.NoClip) { Alignment = StringAlignment.Near };

Rectangle size = new Rectangle(e.MarginBounds.X, e.MarginBounds.Y + 30, e.MarginBounds.Width, e.MarginBounds.Height);

e.Graphics.MeasureString(stringCopia, Fonte, size.Size, alinhar, out caracteresNaPagina, out linhasPorPagina);