diff --git a/plugins/USBPrinting/USBPrinterOutputDeviceManager.py b/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
index 0b71de40e0..6d85a4cceb 100644
--- a/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
+++ b/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
@@ -30,10 +30,7 @@ i18n_catalog = i18nCatalog("cura")
 ##  Manager class that ensures that a usbPrinteroutput device is created for every connected USB printer.
 class USBPrinterOutputDeviceManager(QObject, SignalEmitter, OutputDevicePlugin, Extension):
     def __init__(self, parent = None):
-        QObject.__init__(self, parent)
-        SignalEmitter.__init__(self)
-        OutputDevicePlugin.__init__(self)
-        Extension.__init__(self)
+        super().__init__(parent = parent)
         self._serial_port_list = []
         self._usb_output_devices = {}
         self._usb_output_devices_model = None
diff --git a/plugins/USBPrinting/__init__.py b/plugins/USBPrinting/__init__.py
index 281aecd682..4e8e332173 100644
--- a/plugins/USBPrinting/__init__.py
+++ b/plugins/USBPrinting/__init__.py
@@ -19,5 +19,5 @@ def getMetaData():
     }
 
 def register(app):
-    qmlRegisterSingletonType(USBPrinterOutputDeviceManager.USBPrinterOutputDeviceManager, "UM", 1, 0, "USBPrinterManager", USBPrinterOutputDeviceManager.USBPrinterOutputDeviceManager.getInstance)
+    qmlRegisterSingletonType(USBPrinterOutputDeviceManager.USBPrinterOutputDeviceManager, "Cura", 1, 0, "USBPrinterManager", USBPrinterOutputDeviceManager.USBPrinterOutputDeviceManager.getInstance)
     return {"extension":USBPrinterOutputDeviceManager.USBPrinterOutputDeviceManager.getInstance(), "output_device": USBPrinterOutputDeviceManager.USBPrinterOutputDeviceManager.getInstance()}
diff --git a/resources/qml/WizardPages/Bedleveling.qml b/resources/qml/WizardPages/Bedleveling.qml
index 256b858792..5ed3b0ae58 100644
--- a/resources/qml/WizardPages/Bedleveling.qml
+++ b/resources/qml/WizardPages/Bedleveling.qml
@@ -18,7 +18,7 @@ Item
     property int platform_width: UM.MachineManager.getSettingValue("machine_width")
     property int platform_height: UM.MachineManager.getSettingValue("machine_depth")
     anchors.fill: parent;
-    property variant printer_connection: UM.USBPrinterManager.connectedPrinterList.getItem(0).printer
+    property variant printer_connection: Cura.USBPrinterManager.connectedPrinterList.getItem(0).printer
     Component.onCompleted:
     {
         printer_connection.homeBed()
diff --git a/resources/qml/WizardPages/UltimakerCheckup.qml b/resources/qml/WizardPages/UltimakerCheckup.qml
index 2aaf4c7543..57f2146823 100644
--- a/resources/qml/WizardPages/UltimakerCheckup.qml
+++ b/resources/qml/WizardPages/UltimakerCheckup.qml
@@ -31,9 +31,9 @@ Item
     }
 
     property variant printer_connection: {
-        if (UM.USBPrinterManager.connectedPrinterList.rowCount() != 0){
+        if (Cura.USBPrinterManager.connectedPrinterList.rowCount() != 0){
             wizardPage.checkupProgress.connection = true
-            return UM.USBPrinterManager.connectedPrinterList.getItem(0).printer
+            return Cura.USBPrinterManager.connectedPrinterList.getItem(0).printer
         }
         else {
             return null
@@ -142,7 +142,7 @@ Item
             anchors.left: connectionLabel.right
             anchors.top: parent.top
             wrapMode: Text.WordWrap
-            text: UM.USBPrinterManager.connectedPrinterList.rowCount() > 0 || base.addOriginalProgress.checkUp[0] ? catalog.i18nc("@info:status","Done"):catalog.i18nc("@info:status","Incomplete")
+            text: Cura.USBPrinterManager.connectedPrinterList.rowCount() > 0 || base.addOriginalProgress.checkUp[0] ? catalog.i18nc("@info:status","Done"):catalog.i18nc("@info:status","Incomplete")
         }
         //////////////////////////////////////////////////////////
         Label
diff --git a/resources/qml/WizardPages/UpgradeFirmware.qml b/resources/qml/WizardPages/UpgradeFirmware.qml
index 4bbb049f20..a9a252ffe4 100644
--- a/resources/qml/WizardPages/UpgradeFirmware.qml
+++ b/resources/qml/WizardPages/UpgradeFirmware.qml
@@ -14,7 +14,7 @@ Item
 
     SystemPalette{id: palette}
     UM.I18nCatalog { id: catalog; name:"cura"}
-    property variant printer_connection: UM.USBPrinterManager.connectedPrinterList.rowCount() != 0 ? UM.USBPrinterManager.connectedPrinterList.getItem(0).printer : null
+    property variant printer_connection: Cura.USBPrinterManager.connectedPrinterList.rowCount() != 0 ? Cura.USBPrinterManager.connectedPrinterList.getItem(0).printer : null
     Label
     {
         id: pageTitle
@@ -62,7 +62,7 @@ Item
             anchors.top: parent.top
             anchors.left: parent.left
             text: catalog.i18nc("@action:button","Upgrade to Marlin Firmware");
-            onClicked: UM.USBPrinterManager.updateAllFirmware()
+            onClicked: Cura.USBPrinterManager.updateAllFirmware()
         }
         Button {
             id: skipUpgradeButton