自定义纸张大小打印文档网络表单

我正在尝试在以前设计和打印的自定义尺寸的纸张上打印。 它有点像发票。 但它仍然以 A4 尺寸打印。 我的代码中的设置出了什么问题？

protected void PrintFormLS(object sender, EventArgs e)
{
    PrintDocument pd = new PrintDocument();
    pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
     pd.PrinterSettings.PrinterName = "HP LaserJet P1005";
     pd.DefaultPageSettings.PaperSize.RawKind = 119;
     pd.DefaultPageSettings.PaperSize = new PaperSize("lsForm", 563, 1251);
     pd.PrinterSettings.DefaultPageSettings.PaperSize = new PaperSize("lsForm", 563, 1251);
     pd.OriginAtMargins = true;
     Margins margins = new Margins(1, 1, 1, 1);
     pd.DefaultPageSettings.Margins = margins;
     pd.DefaultPageSettings.Landscape = true;
     pd.Print();
}

pd.PrinterSettings.PrinterName = "HP LaserJet P1005";
pd.OriginAtMargins = true;
PaperSize pageSize = new PaperSize();
pageSize.RawKind = 512; //this is number of created custom size 563x1251
Margins margins = new Margins(1, 1, 1, 1);
pd.DefaultPageSettings.Margins = margins;
pd.DefaultPageSettings.Landscape = true;
pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
pd.Print();