I have Ubuntu 14.04 with the Xubuntu (Xfce) desktop. When I print something, the printer icon appears in the notification area in the panel. But the printer icon does not respond to anything. I try to left-click or right-click: nothing.
I remember a similar bug one or two Ubuntu versions ago with the volume control, and I even installed a patch, which made the volume control icon responsive again.
So, how to get the printer icon to respond to clicking?