.net 打印多个文档时，第一个文档会转到错误的打印机

我必须以编程方式创建和打印多个文档（标签）。我的代码创建并正确打印除第一个标签外的所有标签；将发送到默认打印机，而不是指定的打印机。有人知道这个问题的解决方法吗

Do While ....
txt = sometext
PrintDocument1.Print()
Loop

Private Sub PrintDocument1_PrintPage(sender As System.Object, e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
Dim prFont As New Font("Arial Narrow", 19, FontStyle.Bold)
Dim format As New StringFormat
format.Alignment = StringAlignment.Center

e.PageSettings.PrinterSettings.PrinterName = "\\TLN-CESDC2\TLN2-41-LABEL"
e.PageSettings.Margins.Bottom = 20
e.PageSettings.Margins.Left = 0
e.PageSettings.Margins.Right = 0
e.PageSettings.Margins.Top = 20
e.Graphics.DrawString(txt, prFont, Brushes.Black, 200, 15, format)
End Sub

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在启动循环之前，请尝试设置打印机：

PrintDocument1.PrinterSettings.PrinterName = "\\TLN-CESDC2\TLN2-41-LABEL"
Do While ....
  txt = sometext
  PrintDocument1.Print()
Loop

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请参见

此操作非常有效。这似乎是一个更正确的方法，因为我只设置打印机一次，而不是几十次。