PrintNormal()问题'它没有初始化'

Question

当前C#POS.NET打印问题:

PrintNormal()引发异常='未初始化'
CheckHealth ='未初始化''未初始化'异常打印到Epson TM-T88IV时

使用POS for .NET 1.12和Epson OPOS ADK for .NET(v1.11.9)服务对象成功地为PosPrinter打开,声明和设置DeviceEnabled-true

在PrintNormal()之后向打印机发送任何内容的问题导致抛出"未初始化"异常.Epson OPOS ADK附带的CheckHealth Utility会产生完全相同的错误.使用PrintNormal时(PrinterStation.Receipt例外是'未安装指定的工作站'.

使用直接并行打印机打印机打印机打印精细

我们怎么能不把这个豁免 - "它没有被初始化"？

void K8POSPrint()
{
    /// <summary>
    /// PosPrinter object
    /// </summary>
    PosPrinter m_Printer = null;
    try
    {
        //Use a Logical Device Name which has been set on the SetupPOS.
        string strLogicalName = "PosPrinter";
        try
        {
            //Create PosExplorer
            PosExplorer posExplorer = new PosExplorer();
            DeviceInfo deviceInfo = null;

            try
            {
                // Device Info is not null when the printer has the logical name
                deviceInfo = posExplorer.GetDevice(DeviceType.PosPrinter, strLogicalName);
                m_Printer = (PosPrinter)posExplorer.CreateInstance(deviceInfo);
            }
            catch (Exception ExDevice)
            {
            }

            //Open the device
            m_Printer.Open();
            //Get the exclusive control right for the opened device. Then the device is disable from other application.
            m_Printer.Claim(1000);
            //Enable the device.
            m_Printer.DeviceEnabled = true;
            //    ////CheckHealth.
            //m_Printer.CheckHealth(Microsoft.PointOfService.HealthCheckLevel.Interactive);
            //    //As using the PrintNormal method, send strings to a printer, and print it [\n] is the standard code for starting a new line.
            /// Current Issue Next Line thows an exception - 'It is not initialized' 
            m_Printer.PrintNormal(PrinterStation.Receipt, "Hey Now OPOS for .NET\n");
            // the next line would throw the exception 'The specified station is not mounted.'
            // m_Printer.PrintNormal(PrinterStation.Slip,"Hey Now Slip OPOS.NET\n");
        }
        catch (PosControlException)
        {

        }
    }
    catch (Exception ex)
    {

    }
}

附加信息:尝试在pos打印机上打印时
安装的程序包括:1.已安装的APD4打印机驱动程序Epson TI88IV
APD_412EWM.exe
https://www.epsonexpert.com/ee/techRes/index.htm?ProductId=570
此设置后在控制面板打印机中,我可以选择打印机的属性并成功打印测试到打印机.
2.已安装Microsoft POS.NET 1.12
POSfor.NET.msi http://www.microsoft.com/downloads/en/details.aspx?FamilyID=eaae202a-0fcc-406a-8fde-35713d7841ca
3.已安装Epson OPOS ADK v2. 67
ADK267ER4.exe
https://www.epsonexpert.com/ee/appDev/appDevOPOS.htm
4.已安装的EPSON OPOS ADK for .NET 1.11.8
OPOSN 1 11 18.exe
https://www.epsonexpert.com/ee/appDev/appDevOPOS.htm
5.已安装的OPOS通用控制对象1.13.001
OPOS_CCOs_1.13.001.msi
http://monroecs.com/oposccos_current.htm 6.SetSetPOS
- 已添加设备&逻辑名称
7.检查运行状况仍然会引发错误它未初始化OPOS_E_ILLEGAL 10007(0x00002717)

Answer 1

问题可能不是软件，而是硬件。我看到了类似的问题（位于http://social.msdn.microsoft.com/Forums/vstudio/en-US/446fd4cc-db6b-4822-b3c8-7d9a98bf7eb4/it-is-not-initialized-when-trying-to -printnormal?forum=posfordotnet )，其中开发人员使用了不平行的延长线。一旦他将并行电缆直接连接到打印机（无需延长电缆），他的软件就可以运行。这是在他打电话给 Epson 并订购了一台更新的打印机之后，因为他们告诉他他原来的打印机与 .NET 不兼容，所以这也可能是你的问题。