From 8259a5a71ffbb95cb110b6ed88ebef8d34aa48c2 Mon Sep 17 00:00:00 2001
From: Chris Talkington <chris@talkingtontech.com>
Date: Thu, 9 Apr 2020 19:44:04 -0500
Subject: [PATCH] Guard IPP against negative ink levels (#33931)

---
 homeassistant/components/ipp/sensor.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/ipp/sensor.py b/homeassistant/components/ipp/sensor.py
index 1ce162500c5..fd278d3df2e 100644
--- a/homeassistant/components/ipp/sensor.py
+++ b/homeassistant/components/ipp/sensor.py
@@ -116,7 +116,12 @@ class IPPMarkerSensor(IPPSensor):
     @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):