使用Dos或Dll提高点阵打印机的打印速度 [英] Increase printing speed on Dot matrix printer Using Dos or Dll

问题描述

Private Sub btnPrint_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrint.Click
       Dim prndoc As PrintDocument = New PrintDocument
                prndoc.DocumentName = Text
                AddHandler prndoc.PrintPage, AddressOf Me.Paper_PrintBill
                prndoc.Print()
                prndoc.Dispose() 

    End Sub

Public Sub Paper_PrintBill(ByVal obj As Object, ByVal e As PrintPageEventArgs)
      	 Dim printFont4 As Font = New Font("Verdana", 10)
                  e.Graphics.DrawString("B.No: " & txtreceiptno.Text, printFont4, Brushes.Black, 10, 20)
                    e.Graphics.DrawString(DateTime.Now.ToString("dd/MM/yyyy"), printFont4, Brushes.Black, 10, 50)
      
    End Sub     

我的代码与此类似。当我打印发票时输出很慢可以任何人帮助我

My code is similar to this. when i am printing an invoice the output was very slow Can Any one help Me Please

推荐答案

检查你的决议;你可以用更少的东西（例如300 dpi对比600+）。



并且......你应该异步打印。

Check your "resolution"; you can probably get by with less (e.g. 300 dpi versus 600+).

And ... you should be printing "asynchronously".

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