diff --git a/homeassistant/components/ipp/sensor.py b/homeassistant/components/ipp/sensor.py
index 1ce162500c57cc..fd278d3df2efb1 100644
--- a/homeassistant/components/ipp/sensor.py
+++ b/homeassistant/components/ipp/sensor.py
@@ -116,7 +116,12 @@ def device_state_attributes(self) -> Optional[Dict[str, Any]]:
     @property
     def state(self) -> Union[None, str, int, float]:
         """Return the state of the sensor."""
-        return self.coordinator.data.markers[self.marker_index].level
+        level = self.coordinator.data.markers[self.marker_index].level
+
+        if level >= 0:
+            return level
+
+        return None
 
 
 class IPPPrinterSensor(IPPSensor):