fix lỗi báo máy in gần hết giấy còn 20 lần in

App.xaml.cs

@@ -206,6 +206,7 @@ namespace SafeBagDE70
         protected override void OnExit(ExitEventArgs e)
         {
             // Release the mutex when the application is closed
+            AppData.UpdateDeviceStatusToFile();
             mutex?.ReleaseMutex();
             base.OnExit(e);
         }

AppData.cs

@@ -551,11 +551,8 @@ namespace SafeBagDE70
             {
                 lock (deviceStatusFileName)
                 {
-                    if (File.Exists(deviceStatusFileName))
-                    {
-                        var fileContent = JsonConvert.SerializeObject(DeviceStatusFile);
-                        File.WriteAllText(deviceStatusFileName, fileContent);
-                    }
+                    var fileContent = JsonConvert.SerializeObject(DeviceStatusFile);
+                    File.WriteAllText(deviceStatusFileName, fileContent);
                 }
                 Log.Information("UpdatePrinterStatusFromFile success");
             }

UserControl/DepositSMUCv2.xaml.cs

@@ -448,10 +448,14 @@ namespace SafeBagDE70
         private void GetPrinterStatus()
         {
             var status = printerManager.GetStatus();
+ 
             var strPrinterMessage = "";
+
             if (status != null)
             {
-                if (status.StsNOPAPER|| AppData.IsStopPrinting())
+                bool StsNOPAPER = status.StsNOPAPER;
+                bool StsNEARENDPAP =  status.StsNEARENDPAP;
+                if (StsNOPAPER || (StsNEARENDPAP && AppData.IsStopPrinting()))
                 {
                     AppData.DeviceStatus.PrinterStatus = (int)PrinterStatusCode.PAPEROUT;
                     StopTimers();
@@ -459,7 +463,7 @@ namespace SafeBagDE70
                     ShowError(strPrinterMessage);
                     AppData.ADMINDEVICESTATUS.PrinterStatus = strPrinterMessage;
                 }
-                else if (status.StsNEARENDPAP)
+                else if (StsNEARENDPAP)
                 {
                     AppData.UpdatePrinterStatus(true);
                     strPrinterMessage = "MÁY IN:  GẦN HẾT GIẤY";