diff --git a/app/scantool/Scantool_zh_CN.qm b/app/scantool/Scantool_zh_CN.qm
index eb05fb48..1a2c33b9 100644
Binary files a/app/scantool/Scantool_zh_CN.qm and b/app/scantool/Scantool_zh_CN.qm differ
diff --git a/app/scantool/Scantool_zh_CN.ts b/app/scantool/Scantool_zh_CN.ts
index b8b01724..44ea71b7 100644
--- a/app/scantool/Scantool_zh_CN.ts
+++ b/app/scantool/Scantool_zh_CN.ts
@@ -40,28 +40,28 @@
     </message>
     <message>
         <location filename="dialog_add.cpp" line="16"/>
-        <location filename="dialog_add.cpp" line="48"/>
+        <location filename="dialog_add.cpp" line="49"/>
         <source>Manual</source>
         <translation>手动</translation>
     </message>
     <message>
         <location filename="dialog_add.cpp" line="20"/>
-        <location filename="dialog_add.cpp" line="52"/>
+        <location filename="dialog_add.cpp" line="53"/>
         <source>Button </source>
         <translation>按键 </translation>
     </message>
     <message>
-        <location filename="dialog_add.cpp" line="46"/>
+        <location filename="dialog_add.cpp" line="47"/>
         <source>Modify</source>
         <translation>修改</translation>
     </message>
     <message>
-        <location filename="dialog_add.cpp" line="106"/>
+        <location filename="dialog_add.cpp" line="110"/>
         <source>Tips</source>
         <translation>提示</translation>
     </message>
     <message>
-        <location filename="dialog_add.cpp" line="106"/>
+        <location filename="dialog_add.cpp" line="110"/>
         <source>Item find in list</source>
         <translation>配置已存在</translation>
     </message>
@@ -162,38 +162,30 @@
 <context>
     <name>Form_DeviceConfig</name>
     <message>
-        <location filename="form_deviceconfig.cpp" line="258"/>
+        <location filename="form_deviceconfig.cpp" line="259"/>
         <source>Default</source>
         <translation>恢复默认</translation>
     </message>
     <message>
-        <location filename="form_deviceconfig.cpp" line="431"/>
+        <location filename="form_deviceconfig.cpp" line="432"/>
         <source>Custom gamma</source>
         <translation>自定义色调曲线</translation>
     </message>
     <message>
-        <location filename="form_deviceconfig.cpp" line="865"/>
-        <location filename="form_deviceconfig.cpp" line="892"/>
-        <location filename="form_deviceconfig.cpp" line="919"/>
-        <location filename="form_deviceconfig.cpp" line="954"/>
-        <location filename="form_deviceconfig.cpp" line="989"/>
-        <location filename="form_deviceconfig.cpp" line="1030"/>
-        <location filename="form_deviceconfig.cpp" line="1057"/>
-        <location filename="form_deviceconfig.cpp" line="1092"/>
-        <location filename="form_deviceconfig.cpp" line="1333"/>
+        <location filename="form_deviceconfig.cpp" line="817"/>
         <source>Prompt</source>
         <translation>提示</translation>
     </message>
     <message>
-        <location filename="form_deviceconfig.cpp" line="865"/>
-        <location filename="form_deviceconfig.cpp" line="892"/>
-        <location filename="form_deviceconfig.cpp" line="919"/>
-        <location filename="form_deviceconfig.cpp" line="954"/>
-        <location filename="form_deviceconfig.cpp" line="989"/>
-        <location filename="form_deviceconfig.cpp" line="1030"/>
-        <location filename="form_deviceconfig.cpp" line="1057"/>
-        <location filename="form_deviceconfig.cpp" line="1092"/>
-        <location filename="form_deviceconfig.cpp" line="1333"/>
+        <location filename="form_deviceconfig.cpp" line="873"/>
+        <location filename="form_deviceconfig.cpp" line="903"/>
+        <location filename="form_deviceconfig.cpp" line="933"/>
+        <location filename="form_deviceconfig.cpp" line="971"/>
+        <location filename="form_deviceconfig.cpp" line="1009"/>
+        <location filename="form_deviceconfig.cpp" line="1053"/>
+        <location filename="form_deviceconfig.cpp" line="1083"/>
+        <location filename="form_deviceconfig.cpp" line="1121"/>
+        <location filename="form_deviceconfig.cpp" line="1365"/>
         <source>The funtion is unsupported</source>
         <translation>此版本不支持该功能</translation>
     </message>
@@ -389,24 +381,23 @@
         <translation type="vanished">用户自定义页数</translation>
     </message>
     <message>
-        <location filename="form_saveparam.cpp" line="34"/>
-        <location filename="form_saveparam.cpp" line="243"/>
+        <location filename="form_saveparam.cpp" line="35"/>
         <location filename="form_saveparam.cpp" line="270"/>
-        <location filename="form_saveparam.cpp" line="277"/>
+        <location filename="form_saveparam.cpp" line="297"/>
+        <location filename="form_saveparam.cpp" line="304"/>
         <source>e.g. &apos;%1%2&apos;</source>
         <translation>例如.“%1%2”</translation>
     </message>
     <message>
-        <location filename="form_saveparam.cpp" line="205"/>
         <source>Browse directory</source>
-        <translation>文件夹路径</translation>
+        <translation type="vanished">文件夹路径</translation>
     </message>
 </context>
 <context>
     <name>MainWindow</name>
     <message>
         <location filename="mainwindow.ui" line="14"/>
-        <location filename="mainwindow.cpp" line="38"/>
+        <location filename="mainwindow.cpp" line="46"/>
         <source>Scan Tool</source>
         <translation>扫描工具</translation>
     </message>
@@ -436,131 +427,130 @@
         <translation>选择设备</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="43"/>
+        <location filename="mainwindow.cpp" line="51"/>
         <source>Show</source>
         <translation>打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="45"/>
+        <location filename="mainwindow.cpp" line="53"/>
         <source>Exit</source>
         <translation>退出</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="62"/>
+        <location filename="mainwindow.cpp" line="70"/>
         <source>Device Type</source>
         <translation>设备类型</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="63"/>
+        <location filename="mainwindow.cpp" line="71"/>
         <source>Button Id</source>
         <translation>按键ID</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="64"/>
+        <location filename="mainwindow.cpp" line="72"/>
         <source>Device Config</source>
         <translation>设备配置</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="65"/>
+        <location filename="mainwindow.cpp" line="73"/>
         <source>Save Param</source>
         <translation>保存参数</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="82"/>
-        <location filename="mainwindow.cpp" line="812"/>
-        <location filename="mainwindow.cpp" line="1384"/>
-        <location filename="mainwindow.cpp" line="1445"/>
+        <location filename="mainwindow.cpp" line="90"/>
+        <location filename="mainwindow.cpp" line="1053"/>
+        <location filename="mainwindow.cpp" line="1497"/>
         <source>Manual</source>
         <translation>手动</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="82"/>
-        <location filename="mainwindow.cpp" line="812"/>
-        <location filename="mainwindow.cpp" line="1384"/>
-        <location filename="mainwindow.cpp" line="1445"/>
+        <location filename="mainwindow.cpp" line="90"/>
+        <location filename="mainwindow.cpp" line="1053"/>
+        <location filename="mainwindow.cpp" line="1497"/>
         <source>Button 1</source>
         <translation>按键 1</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="82"/>
-        <location filename="mainwindow.cpp" line="812"/>
-        <location filename="mainwindow.cpp" line="1384"/>
-        <location filename="mainwindow.cpp" line="1445"/>
+        <location filename="mainwindow.cpp" line="90"/>
+        <location filename="mainwindow.cpp" line="1053"/>
+        <location filename="mainwindow.cpp" line="1497"/>
         <source>Button 2</source>
         <translation>按键 2</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="82"/>
-        <location filename="mainwindow.cpp" line="812"/>
-        <location filename="mainwindow.cpp" line="1384"/>
-        <location filename="mainwindow.cpp" line="1445"/>
+        <location filename="mainwindow.cpp" line="90"/>
+        <location filename="mainwindow.cpp" line="1053"/>
+        <location filename="mainwindow.cpp" line="1497"/>
         <source>Button 3</source>
         <translation>按键 3</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="82"/>
-        <location filename="mainwindow.cpp" line="812"/>
-        <location filename="mainwindow.cpp" line="1384"/>
-        <location filename="mainwindow.cpp" line="1445"/>
+        <location filename="mainwindow.cpp" line="90"/>
+        <location filename="mainwindow.cpp" line="1053"/>
+        <location filename="mainwindow.cpp" line="1497"/>
         <source>Button 4</source>
         <translation>按键 4</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="603"/>
-        <location filename="mainwindow.cpp" line="1354"/>
-        <location filename="mainwindow.cpp" line="1410"/>
-        <location filename="mainwindow.cpp" line="1416"/>
-        <location filename="mainwindow.cpp" line="1430"/>
+        <location filename="mainwindow.cpp" line="612"/>
+        <location filename="mainwindow.cpp" line="1023"/>
+        <location filename="mainwindow.cpp" line="1392"/>
         <location filename="mainwindow.cpp" line="1462"/>
         <location filename="mainwindow.cpp" line="1468"/>
+        <location filename="mainwindow.cpp" line="1482"/>
+        <location filename="mainwindow.cpp" line="1514"/>
         <source>Tips</source>
         <translation>提示</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="603"/>
-        <location filename="mainwindow.cpp" line="1354"/>
-        <location filename="mainwindow.cpp" line="1416"/>
+        <location filename="mainwindow.cpp" line="612"/>
+        <location filename="mainwindow.cpp" line="1023"/>
+        <location filename="mainwindow.cpp" line="1468"/>
         <source>Device is offline</source>
         <translation>设备已断开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="963"/>
+        <location filename="mainwindow.cpp" line="927"/>
         <source>binary</source>
         <translation>黑白</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="965"/>
+        <location filename="mainwindow.cpp" line="929"/>
         <source>gray</source>
         <translation>256级灰度</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="967"/>
+        <location filename="mainwindow.cpp" line="931"/>
         <source>rgb</source>
         <translation>24位彩色</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1410"/>
+        <location filename="mainwindow.cpp" line="1392"/>
+        <source>Do not supported to open %1</source>
+        <translation>不支持打开设备 %1</translation>
+    </message>
+    <message>
         <location filename="mainwindow.cpp" line="1462"/>
+        <location filename="mainwindow.cpp" line="1514"/>
         <source>No item selected</source>
         <translation>请选择配置项</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1430"/>
+        <location filename="mainwindow.cpp" line="1482"/>
         <source>Device type mismatch</source>
         <translation>设备类型不匹配</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1468"/>
         <source>Manual configuration items cannot be deleted</source>
-        <translation>手动扫描配置不可被删除</translation>
+        <translation type="vanished">手动扫描配置不可被删除</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1472"/>
+        <location filename="mainwindow.cpp" line="1518"/>
         <source>Question</source>
         <translation>询问</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1473"/>
+        <location filename="mainwindow.cpp" line="1519"/>
         <source>Are you sure you want to remove the item?</source>
         <translation>确认删除配置项？</translation>
     </message>
diff --git a/app/scantool/mainwindow.cpp b/app/scantool/mainwindow.cpp
index 5d0896e8..e58c4c3b 100644
--- a/app/scantool/mainwindow.cpp
+++ b/app/scantool/mainwindow.cpp
@@ -10,6 +10,7 @@
 #include "base/HGCrash.h"
 #include "imgproc/HGImgProc.h"
 #include "imgproc/HGOCR.h"
+#include "huagao/hgscanner_error.h"
 #include "dialog_scaninfo.h"
 #include "form_saveparam.h"
 #include "sqlite3.h"
@@ -1259,6 +1260,11 @@ void MainWindow::timerEvent(QTimerEvent *e)
             this->killTimer(m_timerId);
             m_timerId = -1;
         }
+        else if (SCANNER_ERR_DEVICE_NOT_SUPPORT == status)
+        {
+            this->killTimer(m_timerId);
+            m_timerId = -1;
+        }
     }
 }
 
@@ -1381,9 +1387,13 @@ void MainWindow::on_comboBox_currentIndexChanged(const QString &arg1)
         ui->pushButtonAdd->setEnabled(true);
         ui->pushButtonModify->setEnabled(true);
     }
+    else if (SCANNER_ERR_DEVICE_NOT_SUPPORT == status)
+    {
+        QMessageBox::information(this, tr("Tips"), tr("Do not supported to open %1").arg(arg1));
+    }
     else
     {
-        m_timerId = this->startTimer(2000);
+        m_timerId = this->startTimer(5000);
     }
 }
 
@@ -1416,19 +1426,19 @@ void MainWindow::on_showMainWindowDlg()
 
 void MainWindow::on_saneEventCloseDevice(void* devHandle)
 {
-    if (devHandle == m_devHandle)
-    {
-        assert(nullptr != m_devHandle || nullptr != devHandle);
-        StopScan();
-        emit closeDevice();
-        sane_close(m_devHandle);
-        m_devHandle = NULL;
-        m_devName.clear();
+    assert(nullptr != m_devHandle || nullptr != devHandle);
+    if (devHandle != m_devHandle)
+        return;
 
-        ui->pushButtonScan->setEnabled(false);
-        ui->pushButtonAdd->setEnabled(false);
-        ui->pushButtonModify->setEnabled(false);
-    }
+    StopScan();
+    emit closeDevice();
+    sane_close(m_devHandle);
+    m_devHandle = NULL;
+    m_devName.clear();
+
+    ui->pushButtonScan->setEnabled(false);
+    ui->pushButtonAdd->setEnabled(false);
+    ui->pushButtonModify->setEnabled(false);
 
     if (-1 != m_timerId)
     {
@@ -1436,7 +1446,7 @@ void MainWindow::on_saneEventCloseDevice(void* devHandle)
         m_timerId = -1;
     }
 
-    m_timerId = this->startTimer(2000);
+    m_timerId = this->startTimer(5000);
 }
 
 void MainWindow:: on_pushButtonAdd_clicked()