diff --git a/PrinterConnection.py b/PrinterConnection.py
index b155700843..95ed0d1998 100644
--- a/PrinterConnection.py
+++ b/PrinterConnection.py
@@ -338,8 +338,8 @@ class PrinterConnection(SignalEmitter):
         try:
             ret = self._serial.readline()
         except:
-            self._log("Unexpected error while reading serial port.")    
-            self._errorValue = getExceptionString()
+            Logger.log('e',"Unexpected error while reading serial port.")    
+            #self._errorValue = getExceptionString()
             self.close()
             return None
         #if ret == '':
diff --git a/USBPrinterManager.py b/USBPrinterManager.py
index e4526ef095..83e67a55ca 100644
--- a/USBPrinterManager.py
+++ b/USBPrinterManager.py
@@ -51,8 +51,8 @@ class USBPrinterManager(SignalEmitter,PluginObject):
                 for serial_port in disconnected_ports: # Close connections and remove them from list.
                     connection = self.getConnectionByPort(serial_port)
                     if connection != None:
+                        self._printer_connections.remove(connection)
                         connection.close()
-                    self._printer_connections.remove(connection)
             time.sleep(5) #Throttle, as we don't need this information to be updated every single second.        
     
     ##  Attempt to connect with all possible connections. 
@@ -111,7 +111,8 @@ class USBPrinterManager(SignalEmitter,PluginObject):
                 'icon': 'print_usb',
                 'priority': 1
             })
-    
+        else:
+            Application.getInstance().removeOutputDevice(serial_port)
     def _writeToSerial(self, serial_port):
         for node in DepthFirstIterator(Application.getInstance().getController().getScene().getRoot()):
             if type(node) is not SceneNode or not node.getMeshData():