diff --git a/src/device/DeviceManager.cpp b/src/device/DeviceManager.cpp
index 98d26ca..49a7ac7 100644
--- a/src/device/DeviceManager.cpp
+++ b/src/device/DeviceManager.cpp
@@ -210,9 +210,12 @@ void DeviceManager::processInitializeProgress(const QString& aProgress)
     switch (code)
     {
         case 1:
-            emit initializeProgress(msg);
+            //emit initializeProgress(msg);
             break;
         case 2:
+            emit initializeProgress(msg);
+            break;
+        case 3:
             prepareFinishInitialize();
             emit initializeFinished();
             break;
@@ -286,9 +289,15 @@ void DeviceManager::processScanProgress(const QString& aProgress)
             break;
         }
         case 2:
+        {
+            QVariant var(tr("Patient can leave.\n") + QString("progress:%1%").arg(msg));
+            TRIGGER_EVENT(InvokeOperationProgress, nullptr, (QObject *) &var);
+            break;
+        }
+        case 3:
             prepareFinishScan(true);
             break;
-                default:
+        default:
             prepareFinishScan(false, msg);
             break;
     }
@@ -427,11 +436,13 @@ void DeviceManager::startPreview()
     DeviceStatus status = getDeviceStatus();
     if(status == DeviceStatus::Unkonw)
     {
+        emit startPreviewScanResult(false);
         return;
     }
 
     if (status != DeviceStatus::Rready)
     {
+        emit startPreviewScanResult(false);
         QString msg(status != DeviceStatus::Rready ? "Can't start preview,Device is not ready!" : "Start preview operation fail!");
         THROW_ERROR(msg);
         return;
@@ -440,12 +451,14 @@ void DeviceManager::startPreview()
     DmsSyncActionResult result = mPreviewScanAction->execute();
     if(!result.mIsSucessful)
     {
+        emit startPreviewScanResult(false);
         THROW_ERROR(result.mData);
         return;
     }
     QJsonObject jsonObj = toJsonObject(result.mData);
     if(!jsonObj.contains("code") || jsonObj["code"].toInt() !=0)
     {
+        emit startPreviewScanResult(false);
         QString msg = jsonObj.contains("info") ? jsonObj["info"].toString() : DEFAULT_DMS_START_FAILED;
         THROW_ERROR(msg);
         return;
@@ -453,6 +466,7 @@ void DeviceManager::startPreview()
 
     AppGlobalValues::setInProcessing(true);
     mIsPreviewing = true;
+    emit startPreviewScanResult(true);
     TRIGGER_EVENT(ResponsePreview, nullptr, nullptr);
 }
 
@@ -1026,9 +1040,11 @@ void DeviceManager::controlDrainage(const QString& aCode)
          QJsonObject jsonObj = toJsonObject(result.mData);
          if(jsonObj["code"].toInt() == 0 )
          {
+             emit startPumpControlResult(true);
              return;
          }
      }
+     emit startPumpControlResult(false);
      QString msg = tr("Open pump failed.");
      THROW_ERROR(msg);
 }
diff --git a/src/device/DeviceManager.h b/src/device/DeviceManager.h
index 6ad078c..57b1adb 100644
--- a/src/device/DeviceManager.h
+++ b/src/device/DeviceManager.h
@@ -155,6 +155,8 @@ signals:
     void initializeFinished();
     void initializeProgress(const QString& aProgress);
     void transferStatusUpdated();
+    void startPreviewScanResult(bool aIsSucessful);
+    void startPumpControlResult(bool aIsSucessful);
 
 
 private:
diff --git a/src/forms/scan/ScanFormWidget.cpp b/src/forms/scan/ScanFormWidget.cpp
index a9901aa..10bf5ef 100644
--- a/src/forms/scan/ScanFormWidget.cpp
+++ b/src/forms/scan/ScanFormWidget.cpp
@@ -148,16 +148,40 @@ void ScanFormWidget::initScanControlBar(QHBoxLayout *layout){
 
     connect(mBtnRefresh, &QToolButton::clicked, [=]() {
         QString patientInf(mPatInf->getCurrentPatientJsonString(true));
-        LOG_USER_OPERATION(StartRefresh)
+        LOG_USER_OPERATION("Start Empty Scan")
         EventCenter::Default()->triggerEvent(RequestEmptyScan, nullptr, (QObject*)(&patientInf));
     });
     connect(mBtnPreview, &QToolButton::clicked, [=]() {
-        LOG_USER_OPERATION(StartPreview)
+        LOG_USER_OPERATION(QString("Start Preview, ID: %1").arg(mPatInf->getPatientID()))
         EventCenter::Default()->triggerEvent(RequestPreviewScan, nullptr, nullptr);
     });
+    connect(DeviceManager::Default(), &DeviceManager::startPreviewScanResult, [this](bool aIsSucessful)
+    {
+        if(!aIsSucessful)
+        {
+            setPreviewing(false);
+        }
+    });
+    connect(DeviceManager::Default(), &DeviceManager::startPumpControlResult, [this](bool aIsSucessful)
+    {
+        if(!aIsSucessful)
+        {
+            bool isChecked = mBtnDrainage->isChecked();
+            mBtnDrainage->setChecked(!isChecked);
+            if(isChecked)
+            {
+                mBtnDrainage->setText(tr("Drainage"));
+            }
+            else
+            {
+                mBtnDrainage->setText(tr("Drainaging"));
+            }
+        }
+    });
+
     connect(mBtnScan, &QToolButton::clicked, [=]() {
         QString patientInf(mPatInf->getCurrentPatientJsonString(false));
-        LOG_USER_OPERATION(StartScan)
+        LOG_USER_OPERATION(QString("Start Scan, ID: %1").arg(mPatInf->getPatientID()))
         if (!DeviceManager::Default()->hasValidEmptyScan()){
             QString msg(tr("No refresh data exists, please do Refresh operation first."));
             EventCenter::Default()->triggerEvent(DeviceErrorRaise, nullptr, (QObject*)(&msg));
@@ -166,7 +190,7 @@ void ScanFormWidget::initScanControlBar(QHBoxLayout *layout){
         EventCenter::Default()->triggerEvent(RequestPatientScan, nullptr, (QObject*)(&patientInf));
     });
     connect(mBtnStop, &QToolButton::clicked, [=]() {
-        LOG_USER_OPERATION(Stop)
+        LOG_USER_OPERATION("Stop Preview")
         EventCenter::Default()->triggerEvent(RequestPreviewStop, nullptr, nullptr);
     });
     connect(mBtnDrainage, &QToolButton::clicked, [=](bool aSatus) {
@@ -176,19 +200,21 @@ void ScanFormWidget::initScanControlBar(QHBoxLayout *layout){
             QString code = "1";
             mBtnDrainage->setText(tr("Drainaging"));
             EventCenter::Default()->triggerEvent(RequestDrainage, nullptr, (QObject*)(&code));
+            LOG_USER_OPERATION("Perform Drainage");
         }
         else
         {
             QString code = "0";
             mBtnDrainage->setText(tr("Drainage"));
             EventCenter::Default()->triggerEvent(RequestDrainage, nullptr, (QObject*)(&code));
+            LOG_USER_OPERATION("Stop Drainage");
         }
     });
 }
 
 void ScanFormWidget::protocolChanged(int type) {
-	printf("%d\r\n", type);
 	mPatInf->setProtocol(type);
+    LOG_USER_OPERATION(QString("Select Laterality %1").arg(type == 0 ? "Left" : "Right"));
 }
 
 void ScanFormWidget::setPreviewing(bool val) {
@@ -284,9 +310,6 @@ void ScanFormWidget::initEvents() {//Events-------------------------------------
     connect(EventCenter::Default(), &EventCenter::ReloadLanguage, this, &ScanFormWidget::reloadLanguage);
     connect(EventCenter::Default(), &EventCenter::DeviceErrorRaise, [=](QObject* parent, QObject* msg){
         printf("signal:%d\r\n",senderSignalIndex());
-        setPreviewing(false);
-        mBtnDrainage->setChecked(false);
-        mBtnDrainage->setText(tr("Drainage"));
     });
 }