Epson TM-T88V printer drawer kick

Question

My client has bought a new Cash Drawer for his POS system.
Features fo the cash drawer as follows:

Model: D41SRB
SKU: D41SRB
Electronic Cash Drawer Black 16",
Roller, 24V Epson STD RJ11, Stainless front
5 Bill/5 Coin
1mm steel case
Two extra brackets inside top of case for added durability`

Its connected to the reciept printer EPSON TM-T88V Receipt. I need to open this drawer from a click of button in my C# application, however when I set the drawer to open after print from Printer Preference it works. So , I am sure its connected fine. I need something similar to this ARTICLE but in C#. So please help

Answer 1

assume your serial port is called "port".

Just use: port.writeLine("\x10\x14\x01\x00\x08"); // For Cash Drawer 0

Just use: port.writeLine("\x10\x14\x01\x01\x08"); // For Cash Drawer 1

as the printer can talk to 2 cash drawers.

Commands:

ASCII DCE DC4 n m t

Hex 10 14 n m t

Decimal 16 20 n m t

Where n = 1, m = 0 or 1 (cash drawer #), t <= 1, t <=8

Answer 2

To open the drawer on the TM-T88 series, you have to have it connected via a serial or network port.

The following command sequence is what I used. This is really old code, but it should do the job. You have to open the port and initialize the printer before doing anything else, so that's in there too.

private SerialPort serialPort1 = new SerialPort();

public void OpenPort()
{
    serialPort1.PortName = "COM1";
    serialPort1.Encoding = Encoding.ASCII;
    serialPort1.BaudRate = 38400;
    serialPort1.Parity = System.IO.Ports.Parity.None;
    serialPort1.DataBits = 8;
    serialPort1.StopBits = System.IO.Ports.StopBits.One;
    serialPort1.DtrEnable = true;
    serialPort1.Open();
}

public void InitializePrinter()
{
    serialPort1.Write(Char.ConvertFromUtf32(27) + char.ConvertFromUtf32(64));
}

public void OpenDrawer()
{
    serialPort1.Write(char.ConvertFromUtf32(27) +
       char.ConvertFromUtf32(112) + 
       char.ConvertFromUtf32(0) +
       char.ConvertFromUtf32(5) + 
       char.ConvertFromUtf32(5));
}

Answer 3

I am able to solve my issue I used

RawPrinterHelper.SendStringToPrinter("EPSON TM-T88V Receipt", System.Text.ASCIIEncoding.ASCII.GetString(new byte[] { 27, 112, 48, 55, 121 }));

got this drawer code from http://keyhut.com/popopen.htm

Heres My whole code:

 public class RawPrinterHelper
    {
        // Structure and API declarions:
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
        public class DOCINFOA
        {
            [MarshalAs(UnmanagedType.LPStr)]
            public string pDocName;
            [MarshalAs(UnmanagedType.LPStr)]
            public string pOutputFile;
            [MarshalAs(UnmanagedType.LPStr)]
            public string pDataType;
        }
        [DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter, out IntPtr hPrinter, IntPtr pd);

        [DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool ClosePrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool StartDocPrinter(IntPtr hPrinter, Int32 level, [In, MarshalAs(UnmanagedType.LPStruct)] DOCINFOA di);

        [DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool EndDocPrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool StartPagePrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool EndPagePrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
        public static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten);

        // SendBytesToPrinter()
        // When the function is given a printer name and an unmanaged array
        // of bytes, the function sends those bytes to the print queue.
        // Returns true on success, false on failure.
        public static bool SendBytesToPrinter(string szPrinterName, IntPtr pBytes, Int32 dwCount)
        {
            Int32 dwError = 0, dwWritten = 0;
            IntPtr hPrinter = new IntPtr(0);
            DOCINFOA di = new DOCINFOA();
            bool bSuccess = false; // Assume failure unless you specifically succeed.

            di.pDocName = "RAW Document";
            // Win7
            di.pDataType = "RAW";

            // Win8+
            // di.pDataType = "XPS_PASS";

            // Open the printer.
            if (OpenPrinter(szPrinterName.Normalize(), out hPrinter, IntPtr.Zero))
            {
                // Start a document.
                if (StartDocPrinter(hPrinter, 1, di))
                {
                    // Start a page.
                    if (StartPagePrinter(hPrinter))
                    {
                        // Write your bytes.
                        bSuccess = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
                        EndPagePrinter(hPrinter);
                    }
                    EndDocPrinter(hPrinter);
                }
                ClosePrinter(hPrinter);
            }
            // If you did not succeed, GetLastError may give more information
            // about why not.
            if (bSuccess == false)
            {
                dwError = Marshal.GetLastWin32Error();
            }
            return bSuccess;
        }

        public static bool SendFileToPrinter(string szPrinterName, string szFileName)
        {
            // Open the file.
            FileStream fs = new FileStream(szFileName, FileMode.Open);
            // Create a BinaryReader on the file.
            BinaryReader br = new BinaryReader(fs);
            // Dim an array of bytes big enough to hold the file's contents.
            Byte[] bytes = new Byte[fs.Length];
            bool bSuccess = false;
            // Your unmanaged pointer.
            IntPtr pUnmanagedBytes = new IntPtr(0);
            int nLength;

            nLength = Convert.ToInt32(fs.Length);
            // Read the contents of the file into the array.
            bytes = br.ReadBytes(nLength);
            // Allocate some unmanaged memory for those bytes.
            pUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);
            // Copy the managed byte array into the unmanaged array.
            Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength);
            // Send the unmanaged bytes to the printer.
            bSuccess = SendBytesToPrinter(szPrinterName, pUnmanagedBytes, nLength);
            // Free the unmanaged memory that you allocated earlier.
            Marshal.FreeCoTaskMem(pUnmanagedBytes);
            fs.Close();
            fs.Dispose();
            fs = null;
            return bSuccess;
        }
        public static bool SendStringToPrinter(string szPrinterName, string szString)
        {
            IntPtr pBytes;
            Int32 dwCount;
            // How many characters are in the string?
            dwCount = szString.Length;
            // Assume that the printer is expecting ANSI text, and then convert
            // the string to ANSI text.
            pBytes = Marshal.StringToCoTaskMemAnsi(szString);
            // Send the converted ANSI string to the printer.
            SendBytesToPrinter(szPrinterName, pBytes, dwCount);
            Marshal.FreeCoTaskMem(pBytes);
            return true;
        }
    }
 private void button1_Click(object sender, EventArgs e)
    {
        RawPrinterHelper.SendStringToPrinter("EPSON TM-T88V Receipt", System.Text.ASCIIEncoding.ASCII.GetString(new byte[] { 27, 112, 48, 55, 121 }));
    }

After this by clicking on button1 it kicks the drawer.