diff -up hplip-3.16.7/base/utils.py.setup-errm hplip-3.16.7/base/utils.py
--- hplip-3.16.7/base/utils.py.setup-errm	2016-08-10 16:33:06.781765887 +0200
+++ hplip-3.16.7/base/utils.py	2016-08-10 16:33:27.060588323 +0200
@@ -789,6 +789,7 @@ def checkPyQtImport4():
     except ImportError:
         import PyQt5
         import ui5
+        log.error("Install the hplip-gui package for graphical support.")
     else:
         # hplip-gui sub-package (Fedora) requires python3-qt5
         log.error("Install the hplip-gui package for graphical support.")