How to print page content using jqprint

<script type="text/javascript" src="__JS__/jquery-migrate-1.2.1.min.js"></script>
<script type="text/javascript" src="__JS__/jqprint-0.3.js"></script>

<p class="wrap-content container" id="container">
 <table border="0" cellpadding="0" cellspacing="0" class="store-joinin baseinfo">
  <thead>
   <tr>
    <th colspan="40">用户信息</th>
   </tr>
  </thead>
  <tbody>
   <tr style="background: rgb(255, 255, 255);">
    <th>姓名：</th>
    <td colspan="40">18030632605</td>
   </tr>
   <tr style="background: rgb(255, 255, 255);">
    <th>性别：</th>
    <td colspan="40">男</td>
   </tr>
   <tr style="background: rgb(255, 255, 255);">
    <th>年龄：</th>
    <td colspan="40">41</td>
   </tr>
   <tr style="background: rgb(255, 255, 255);">
    <th>身份证：</th>
    <td colspan="40">52272419770101059X</td>
   </tr>
   <tr style="background: rgb(255, 255, 255);">
    <th>所属机构：</th>
    <td colspan="40">上海市政法委</td>
   </tr>
  </tbody>
  </table>
 ......
 <button class="btn btn-danger printBtn1" onclick="btnPrintClick()" type="button">打 印</button>

function btnPrintClick(){
 var imgBox = $('#img_box');
 var chartBox = $('#main');
 if (imgBox.length <= 0) {
  chartBox.after(&#39;<p id="img_box"></p>&#39;);
  imgBox = $(&#39;#img_box&#39;);
 }
 // 将echart生成图片并放入img-box，并显示图片img-box
 imgBox.html(&#39;< img src="&#39; + myChart.getDataURL() + &#39;"/>&#39;).css(&#39;display&#39;,&#39;block&#39;);
 // 隐藏echart图chart-box
 chartBox.css(&#39;display&#39;,&#39;none&#39;);
 // 调整img大小
 var img = imgBox.find(&#39;img&#39;);
 var imgWidth = img.width();
 var showWidth = 1000; // 显示宽度，即图片缩小到的宽度
 if (imgWidth > showWidth) { // 只有当图片大了才缩小
  var imgNewHeight = img.height() / (imgWidth / showWidth);
  img.css({&#39;width&#39;: showWidth + &#39;px&#39;, &#39;height&#39;: imgNewHeight + &#39;px&#39;});
 }
 var imgBox2 = $(&#39;#img_box2&#39;);
 var chartBox2 = $(&#39;#main2&#39;);
 if (imgBox2.length <= 0) {
  chartBox2.after(&#39;<p id="img_box2"></p>&#39;);
  imgBox2 = $(&#39;#img_box2&#39;);
 }
 // 将echart生成图片并放入img-box，并显示图片img-box
 imgBox2.html(&#39;< img src="&#39; + myChart2.getDataURL() + &#39;"/>&#39;).css(&#39;display&#39;,&#39;block&#39;);
 // 隐藏echart图chart-box
  chartBox2.css(&#39;display&#39;,&#39;none&#39;);
 // 调整img大小
 var img2 = imgBox2.find(&#39;img&#39;);
 var img2Width = img2.width();
 var show2Width = 1000; // 显示宽度，即图片缩小到的宽度
 if (img2Width > show2Width) { // 只有当图片大了才缩小
  var img2NewHeight = img2.height() / (img2Width / show2Width);
  img2.css({&#39;width&#39;: show2Width + &#39;px&#39;, &#39;height&#39;: img2NewHeight + &#39;px&#39;});
 }
 // 打印
 $("#TestQuestions").jqprint();
 // 执行打印后再切换回来
 // 显示echart图chart-box
 chartBox.css(&#39;display&#39;,&#39;block&#39;);
 chartBox2.css(&#39;display&#39;,&#39;block&#39;);
 // 隐藏图片img-box
 imgBox.css(&#39;display&#39;,&#39;none&#39;);
 imgBox2.css(&#39;display&#39;,&#39;none&#39;);
}