diff --git a/NKC_WF/Controllers/SheetController.cs b/NKC_WF/Controllers/SheetController.cs
index c2d1cbf..0b50a10 100644
--- a/NKC_WF/Controllers/SheetController.cs
+++ b/NKC_WF/Controllers/SheetController.cs
@@ -142,28 +142,30 @@ namespace NKC_WF.Controllers
             return answ;
         }
 
-
-        /// <summary>
-        /// Effettua la chiamata di update x SINGOLO foglio
-        /// 
-        /// 
-        /// ***********************************
-        ///  METODI PUT
-        /// 
-        ///  per abilitare è necessario agire sulla conf di IIS:
-        /// 
-        ///  - modificare il file applicationHost.config che si trova in C:\Windows\System32\inetsrv\config
-        ///  - disinstallare webDav oppure commentare le righe
-        ///   <!-- <add name="WebDAVModule" /> -->
-        ///   <!-- <add name="WebDAVModule" image="%windir%\System32\inetsrv\webdav.dll" /> -->
-        ///   <!-- <add name="WebDAV" path="*" verb="PROPFIND,PROPPATCH,MKCOL,PUT,COPY,DELETE,MOVE,LOCK,UNLOCK" modules="WebDAVModule" /r esourceType="Unspecified"// requireAccess="None" /> -->
-        ///  - aggiungere PUT/DELETE a handler:
-        ///   <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE" modules="IsapiModule" scriptProcessor="%w indir/%//\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
-        ///   <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE" ///t ype="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" responseBufferLimit="0" />
-        /// 
-        /// *************************************/
-        /// </summary>
-        /// <param name="sheetUpdated">Oggetto con Elenco fogli da aggiornare</param>
+        /// <summary> Effettua la chiamata di update x SINGOLO foglio
+        ///
+        ///
+        /// *********************************** METODI PUT
+        ///
+        /// per abilitare è necessario agire sulla conf di IIS:
+        ///
+        /// - modificare il file applicationHost.config che si trova in C:\Windows\System32\inetsrv\config
+        /// - disinstallare webDav oppure commentare le righe <!-- <add name="WebDAVModule" /> -->
+        /// <!-- <add name="WebDAVModule" image="%windir%\System32\inetsrv\webdav.dll" /> --> <!--
+        /// <add name="WebDAV" path="*"
+        /// verb="PROPFIND,PROPPATCH,MKCOL,PUT,COPY,DELETE,MOVE,LOCK,UNLOCK" modules="WebDAVModule"
+        /// /r esourceType="Unspecified"// requireAccess="None" /> -->
+        /// - aggiungere PUT/DELETE a handler: <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit"
+        /// path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE" modules="IsapiModule"
+        /// scriptProcessor="%w indir/%//\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll"
+        /// preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" /> <add
+        /// name="ExtensionlessUrlHandler-Integrated-4.0" path="*."
+        /// verb="GET,HEAD,POST,DEBUG,PUT,DELETE" ///t
+        /// ype="System.Web.Handlers.TransferRequestHandler"
+        /// preCondition="integratedMode,runtimeVersionv4.0" responseBufferLimit="0" />
+        ///
+        /// *************************************/ </summary> <param name="sheetUpdated">Oggetto con
+        /// Elenco fogli da aggiornare</param>
         /// PUT: api/Sheet/machine_ID
         [HttpPut]
         public void Put(SheetWorkList sheetUpdated)
@@ -250,7 +252,6 @@ namespace NKC_WF.Controllers
 
         #endregion Private Fields
 
-
         #region Private Methods
 
         /// <summary>
@@ -266,47 +267,59 @@ namespace NKC_WF.Controllers
             if (!fixSheet.Waiting || !fixSheet.Done)
             {
                 // calcolo SE sia in errore secondo i 4 punti di controllo work/unload
-                if (fixSheet.Unloading.OkE && dfUnlEnd)
+                if (fixSheet.Unloading.OkE)
                 {
                     // loggo
                     LogSheetError(fixSheet);
 
-                    // sistemo...
-                    fixSheet.Unloading.DtStart = fixSheet.Unloading.OkS ? fixSheet.Unloading.DtStart : fixSheet.Unloading.DtEnd;
-                    fixSheet.Machining.DtEnd = fixSheet.Machining.OkE ? fixSheet.Machining.DtEnd : fixSheet.Unloading.DtEnd;
-                    fixSheet.Machining.DtStart = fixSheet.Machining.OkS ? fixSheet.Machining.DtStart : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    if (dfUnlEnd)
+                    {
+                        // sistemo...
+                        fixSheet.Unloading.DtStart = fixSheet.Unloading.OkS ? fixSheet.Unloading.DtStart : fixSheet.Unloading.DtEnd;
+                        fixSheet.Machining.DtEnd = fixSheet.Machining.OkE ? fixSheet.Machining.DtEnd : fixSheet.Unloading.DtEnd;
+                        fixSheet.Machining.DtStart = fixSheet.Machining.OkS ? fixSheet.Machining.DtStart : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    }
                 }
-                else if (fixSheet.Unloading.OkS && dfUnlStart && (!fixSheet.Printing.Done || !fixSheet.Machining.Done))
+                else if (fixSheet.Unloading.OkS && (!fixSheet.Printing.Done || !fixSheet.Machining.Done))
                 {
                     // loggo
                     LogSheetError(fixSheet);
 
-                    // sistemo...
-                    fixSheet.Machining.DtEnd = fixSheet.Machining.OkE ? fixSheet.Machining.DtEnd : fixSheet.Unloading.DtEnd;
-                    fixSheet.Machining.DtStart = fixSheet.Machining.OkS ? fixSheet.Machining.DtStart : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    if (dfUnlStart)
+                    {
+                        // sistemo...
+                        fixSheet.Machining.DtEnd = fixSheet.Machining.OkE ? fixSheet.Machining.DtEnd : fixSheet.Unloading.DtEnd;
+                        fixSheet.Machining.DtStart = fixSheet.Machining.OkS ? fixSheet.Machining.DtStart : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    }
                 }
-                else if (fixSheet.Machining.OkE && dfWrkEnd && (!fixSheet.Printing.Done || !fixSheet.Machining.Done))
+                else if (fixSheet.Machining.OkE && (!fixSheet.Printing.Done || !fixSheet.Machining.Done))
                 {
                     // loggo
                     LogSheetError(fixSheet);
 
-                    // sistemo...
-                    fixSheet.Machining.DtStart = fixSheet.Machining.OkS ? fixSheet.Machining.DtStart : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    if (dfWrkEnd)
+                    {
+                        // sistemo...
+                        fixSheet.Machining.DtStart = fixSheet.Machining.OkS ? fixSheet.Machining.DtStart : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    }
                 }
-                else if (fixSheet.Machining.OkS && dfWrkStart && !fixSheet.Printing.Done)
+                else if (fixSheet.Machining.OkS && !fixSheet.Printing.Done)
                 {
                     // loggo
                     LogSheetError(fixSheet);
 
-                    // sistemo...
-                    fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
-                    fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    if (dfWrkStart)
+                    {
+                        // sistemo...
+                        fixSheet.Printing.DtEnd = fixSheet.Printing.OkE ? fixSheet.Printing.DtEnd : fixSheet.Unloading.DtEnd;
+                        fixSheet.Printing.DtStart = fixSheet.Printing.OkS ? fixSheet.Printing.DtStart : fixSheet.Unloading.DtEnd;
+                    }
                 }
             }