POS Printer Problem

[Geeshan]

Hi All,

I'm a newbie to the POS system. so please mind if my questions are stupid.

I have an epson TM-U200 printer with USB connection and cash drawer connected to printer with RJ 11 cable.

I tried to create a service object for my printer and suceeds.(It shows on test app as a POS Printer)

this is my code for that.

[HardwareId(@"USB\Vid_0525&Pid_a700",@"USB\Vid_0525&Pid_a700")]
    [ServiceObject(DeviceType.PosPrinter,"PrinterTemplate","Printer Class",1,9)]
    public class MyPrinter : PosPrinterBase
    {   private string MyHealthText;
 
        public MyPrinter()
        {        
            // Initialize device capability properties.          
            MyHealthText = "";
        }
 
        ~MyPrinter()
        {
            Dispose(false);
        }
 
        // Release any resources managed by this object.
        protected override void Dispose(bool disposing)
        {
            try
            {
                // Your code here.
            }
            finally
            {
                // Must call base class Dispose.
                base.Dispose(disposing);
            }
        }         
        #region PosCommon overrides
        // Returns the result of the last call to CheckHealth().
        public override string CheckHealthText
        {
            get
            {
                // MsrBasic.VerifyState(mustBeClaimed,
                // mustBeEnabled). This may throw an exception.
                VerifyState(false, false);
 
                return MyHealthText;
            }
        }
 
        public override string CheckHealth(
                    HealthCheckLevel level)
        {
            // Verify that device is open, claimed, and enabled.
            VerifyState(true, true);
 
            // Your code here:
            // check the health of the device and return a 
            // descriptive string.
 
            // Cache result in the CheckHealthText property.
            MyHealthText = "Ok";
            return MyHealthText;
        }
 
        public override DirectIOData DirectIO(
                        int command, 
                        int data, 
                        object obj)
        {
            // Verify that device is open.
            VerifyState(false, false);
 
            return new DirectIOData(data, obj);
        }
        #endregion // PosCommon overrides
        protected override PrintResults PrintNormalImpl(PrinterStation station, PrinterState printerState, string data)
        {
            throw new Exception("The method or operation is not implemented.");
        }
        protected override void ValidateDataImpl(PrinterStation station, string data)
        {
            throw new Exception("The method or operation is not implemented.");
        }
 
    }
 

I register this with posdm in the name "Printer"

This is my application.

PosExplorer ex = new PosExplorer();
            DeviceInfo d = ex.GetDevice(DeviceType.PosPrinter, "Printer");
            PosPrinter printer = (PosPrinter)ex.CreateInstance(d);
            printer.Open();
            printer.Claim(1000);
            printer.DeviceEnabled = true;
            //printer.PrintNormal(PrinterStation.Receipt, "SSSSSS");
 
            printer.Release();
            printer.Close();
 

this PrintNormal method giving me an error saying "The receipt station is not present". I cannot figure it out. Please help me on this.

and if I want to open the cash drawer, can I use the printnormal method for that. something like "printer.PrintN ormal(PrinterSt ation.Receipt, "ESC /27,112,0,25,250 ");"

I'm really confused.

[Curtis Rutland]

I fixed your code tags. They end with [/code]

[Geeshan]

Hi I overcome the problem with setting

Properties.CapR ecPresent = true;

But now it give me another error.

System.Exception: The method or operation is not implemented.
   at IndexPrinter.IndexPrinter.PrintNormalImpl(PrinterStation station, PrinterState printerState, String data)
   at Microsoft.PointOfService.BaseServiceObjects.PosPrinterBase.OutputRequestHandler(OutputRequest Request)
   at Microsoft.PointOfService.Internal.PosCommonInternal.ProcessOutputRequest(OutputRequest request, Boolean asyncOperation)
   at Microsoft.PointOfService.BaseServiceObjects.PosPrinterBase.ProcessRequest(PrintOperation operation)
   at Microsoft.PointOfService.BaseServiceObjects.PosPrinterBase.PrintNormal(PrinterStation station, String data)
   at IndexPrinter.IndexPrinter.PrintNormal(PrinterStation station, String data)
   at TestApplication.PosPrinterScreen.PrintButton_Click(Object sender, EventArgs e)
 
 

I include this code in the class

public override void PrintNormal(Pri nterStation station, string data)
{
base.PrintNorma l(station, data);
}

But it give me the same error. please help

[Robskew]

Geeshan, did you ever solve this problem??, because I run into the same errors...