How can I print image with ZC-350(It's emergency and need your help )

Hi,
I used this code to print some information and qr code and A logo on cards by zc-350.I have problem for printing logo.

private static string GetTemplateData()
{
return "<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n" +
"<template name=\"TemplateExample\" card_type=\"2\" card_thickness=\"30\" delete=\"no\">\r\n" +
" <fonts>\r\n" +
" <font id=\"2\" name=\"Arial\" size=\"16\" bold=\"yes\" italic=\"no\" underline=\"no\" />\r\n" +
" <font id=\"3\" name=\"Arial\" size=\"8\" bold=\"no\" italic=\"no\" underline=\"no\"/>\r\n" +
" <font id=\"4\" name=\"Arial\" size=\"8\" bold=\"yes\" italic=\"no\" underline=\"no\"/>\r\n" +
" </fonts>\r\n" +
" <sides>\r\n" +
" <side name=\"front\" orientation=\"portrait\" rotation=\"0\" k_mode=\"text\">\r\n" +
" <print_types>\r\n" +
" <print_type type=\"mono\">\r\n" +
" <text field=\"text\" font_id=\"2\" x=\"80\" y=\"650\" width=\"0\" height=\"0\" angle=\"0\" color=\"0x000000\" letter-spacing=\"3px\"/>\r\n" +
" <text field=\"text1\" font_id=\"3\" x=\"280\" y=\"860\" width=\"0\" height=\"0\" angle=\"0\" color=\"0x000000\"/>\r\n" +
" <text field=\"text2\" font_id=\"4\" x=\"280\" y=\"900\" width=\"0\" height=\"0\" angle=\"0\" bold=\"yes\" color=\"0x000000\"/>\r\n" +
" <barcode field=\"qrCode\" code=\"qrCode\" x=\"80\" y=\"830\" width=\"110\" height=\"110\" quiet_zone_width=\"0\"/>\r\n" +
" <graphic field=\"imageLogo\"format=\"bmp\" width=\"100\" height=\"100\" x=\"80\" y=\"80\" delete=\"false\"/>\r\n" +
" </print_type>\r\n" +
" </print_types>\r\n" +
" </side>\r\n" +
" </sides>\r\n" +
"</template>";
}

/// <exception cref="ArgumentException"></exception>
/// <exception cref="System.IO.IOException"></exception>
/// <exception cref="Zebra.Sdk.Card.Exceptions.ZebraCardException"></exception>
/// <exception cref="Zebra.Sdk.Device.ZebraIllegalArgumentException"></exception>
private static Dictionary<string, string> PopulateTemplateFieldData(List<string> templateFields, string CSN)
{
Dictionary<string, string> fieldData = new Dictionary<string, string>();
foreach (string fieldName in templateFields)
{
string CSN1 = CSN.Insert(4, " ");
CSN1 = CSN1.Insert(9, " ");

string fieldValue = "";
switch (fieldName)
{

case "text":
//CSN = CSN.Insert(1, " ");
fieldValue = CSN1;
break;

case "text1":

fieldValue = "text ";
break;

case "text2":

fieldValue = "text";

break;

case "qrCode":

fieldValue = "text";
break;

case "imageLogo":
{
string fileName = "../pic/unnamed.bmp";

fieldValue = fileName;
break;
}
}
All things good work just have problem for logo (an image).It did not work. please give me an advice to solve this problem.