public Printer(string deviceName = "PosPrinter") { var posExplorer = new PosExplorer(); var deviceInfo = posExplorer.GetDevice(DeviceType.PosPrinter, deviceName); m_Printer = (PosPrinter)posExplorer.CreateInstance(deviceInfo); m_Printer.Open(); m_Printer.Claim(500); m_Printer.DeviceEnabled = true; m_Printer.RecLetterQuality = true; m_Printer.MapMode = MapMode.Metric; m_Printer.ClearOutput(); }