Hello,
I have developed a test application for printing labels.
Sometimes it prints like a charm, sometimes it doesn't print anything and
just throws exceptions like "Malformed Multipart Form Data" and "Malformed status response - unable to determine printer status".
Can you please help me with these errors?
I am using the latest Zebra.SDK nuget package (2.15.2634), Firmware version is V84.20.22Z.
Here is my sample code:
ZPL Format :
ZPL_String = "^XA" +
"^DFE:FORMAT2.ZPL" +
"^FS" +
"^FT26,243^A0N,56,55^FH\\^FN12\"First Name\"^FS" +
"^FT26,296^A0N,56,55^FH\\^FN11\"Last Name\"^FS" +
"^FT258,73^A0N,39,38^FH\\^FDVisitor^FS" +
"^FO100,100^XG^FN13,1,1^FS" +
"^FO5,17^GB601,379,8^FS" +
"^XZ";
Variables for printing:
Dictionary variables = new Dictionary
{
{12,"Sinan" },
{11,"Redzheb" },
{13,"Something" }
};
public void Print(Dictionary variables)
{
Connection conn = new UsbConnection(_printer.Address); // DiscoveredUsbPrinter
try
{
conn.Open();
ZebraPrinter _genericPrinter = ZebraPrinterFactory.GetInstance(PrinterLanguage.ZPL, conn);
ZebraPrinterLinkOs _linkOsPrinter = ZebraPrinterFactory.CreateLinkOsPrinter(_genericPrinter, PrinterLanguage.ZPL);
PrinterStatus printerStatus = _genericPrinter.GetCurrentStatus();
if (CanPrint(printerStatus) == false) return;
if (_linkOsPrinter != null)
{
//I have already successfully stored format on the printer
_linkOsPrinter.PrintStoredFormatWithVarGraphics("E:FORMAT2.ZPL", variables);
}
}
catch (ConnectionException ex)
{
ErrorLog = "***** ERROR " + ex.Message.ToString() + Environment.NewLine;
}
catch (ZebraPrinterLanguageUnknownException ex)
{
ErrorLog = "***** ERROR " + ex.Message.ToString() + Environment.NewLine;
}
finally
{
conn.Close();
}
}