1.安装nuget包 ：ESC-POS-USB-NET**
2.windows上查找打印机名称
3.输出测试**
Demo：
private void button1_Click(object sender, EventArgs e)
{
Printer printer = new Printer(“EPSON TM-L90 Label”);
printer.Append(“NORMAL - 48 COLUMNS”);
printer.Append(“1…5…10…15…20…25…30…35…40…45.48”);
printer.Separator();
printer.Append(“Text Normal”);
printer.BoldMode(“Bold Text”);
printer.UnderlineMode(“Underlined text”);
printer.Separator();
printer.ExpandedMode(PrinterModeState.On);
printer.Append(“Expanded - 23 COLUMNS”);
printer.Append(“1…5…10…15…20…23”);
printer.ExpandedMode(PrinterModeState.Off);
printer.Separator();
printer.CondensedMode(PrinterModeState.On);
printer.Append(“Condensed - 64 COLUMNS”);
printer.Append(“1…5…10…15…20…25…30…35…40…45…50…55…60…64”);
printer.CondensedMode(PrinterModeState.Off);
printer.Separator();
printer.DoubleWidth2();
printer.Append(“Font Width 2”);
printer.DoubleWidth3();
printer.Append(“Font Width 3”);
printer.NormalWidth();
printer.Append(“Normal width”);
printer.Separator();
printer.AlignRight();
printer.Append(“Right aligned text”);
printer.AlignCenter();
printer.Append(“Center-aligned text”);
printer.AlignLeft();
printer.Append(“Left aligned text”);
printer.Separator();
printer.Font(“Font A”, Fonts.FontA);
printer.Font(“Font B”, Fonts.FontB);
printer.Font(“Font C”, Fonts.FontC);
printer.Font(“Font D”, Fonts.FontD);
printer.Font(“Font E”, Fonts.FontE);
printer.Font(“Font Special A”, Fonts.SpecialFontA);
printer.Font(“Font Special B”, Fonts.SpecialFontB);
printer.Separator();
printer.InitializePrint();
printer.SetLineHeight(24);
printer.Append(“This is first line with line height of 30 dots”);
printer.SetLineHeight(40);
printer.Append(“This is second line with line height of 24 dots”);
printer.Append(“This is third line with line height of 40 dots”);
printer.NewLines(3);
printer.Append(“End of Test ”);
printer.Separator();
printer.FullPaperCut();
printer.PrintDocument();
MessageBox.Show(“打印成功！”);
}
图片打印测试
Printer printer = new Printer(“Printer Name”);
Bitmap image =new Bitmap ( Bitmap.FromFile(“Icon.bmp”));
printer.Image(image);
printer.FullPaperCut();
printer.PrintDocument();
打印条形码：
Printer printer = new Printer(“Printer Name”);
printer.Append(“Code 128”);
printer.Code128(“123456789”);
printer.Separator();
printer.Append(“Code39”);
printer.Code39(“123456789”);
printer.Separator();
printer.Append(“Ean13”);
printer.Ean13(“1234567891231”);
printer.FullPaperCut();
printer.PrintDocument();
///#end
