Bug#483205: Info received (hplip: 2.8.5 toolbox / device manager shows printer but doesn't allow anything to be done)

[Arthur Marsh <arthur.marsh@internode.on.net>]

I've also seen the following errors when running hp-systray from the 
command line:

ERROR:dbus.proxies:Introspect error on :1.23:/com/hplip/StatusService: 
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did 
not receive a reply. Possible causes include: the remote application did 
not send a reply, the message bus security policy blocked the reply, the 
reply timeout expired, or the network connection was broken.
error: Unable to communicate with device (code=12): 
hp:/usb/Officejet_Pro_K5300?serial=MY742380S7
warning: Device not found
error: Unable to communicate with device (code=12): 
hp:/usb/Officejet_Pro_K5300?serial=MY742380S7
warning: Device not found

Arthur.