How do I catch the error from my printer with PrintDocument?
- by Scottie
I am using the PrintDocument class to print to my Brother label printer. When I execute the Print() method, the printer starts flashing a red error light, but everything else returns successful.
I can run this same code on my laser printer and everything works fine.
How can I see what is causing the error on my label printer?
Code:
public class Test
{
private Font printFont;
private List<string> _documentLinesToPrint = new List<string>();
public void Run()
{
_documentLinesToPrint.Add("Test1");
_documentLinesToPrint.Add("Test2");
printFont = new Font("Arial", 10);
var pd = new PrintDocument();
pd.DefaultPageSettings.Margins = new Margins(25, 25, 25, 25);
pd.DefaultPageSettings.PaperSize = new PaperSize("Label", 400, 237);
var printerSettings = new System.Drawing.Printing.PrinterSettings();
printerSettings.PrinterName ="Brother QL-570 LE";
pd.PrinterSettings = printerSettings;
pd.PrinterSettings.Copies = 1;
pd.PrintPage += new PrintPageEventHandler(this.pd_PrintPage);
pd.Print();
}
// The PrintPage event is raised for each page to be printed.
private void pd_PrintPage(object sender, PrintPageEventArgs ev)
{
float linesPerPage = 0;
float yPos = 0;
int count = 0;
float leftMargin = ev.MarginBounds.Left;
float topMargin = ev.MarginBounds.Top;
string line = null;
// Calculate the number of lines per page.
linesPerPage = ev.MarginBounds.Height /
printFont.GetHeight(ev.Graphics);
// Print each line of the file.
while ((count < linesPerPage) && (count < _documentLinesToPrint.Count))
{
line = _documentLinesToPrint[count];
yPos = topMargin + (count *
printFont.GetHeight(ev.Graphics));
ev.Graphics.DrawString(line, printFont, Brushes.Black,
leftMargin, yPos, new StringFormat());
line = null;
count++;
}
// If more lines exist, print another page.
if (line != null)
ev.HasMorePages = true;
else
ev.HasMorePages = false;
}
}
