Air Print From an iPad to a Samsumng XPress M2885

I've downloaded the required apps (Samsumng Mobile Print and Samsung Cloud Print).However, absolutely NOTHING happens when I try printing from the iPad to the laser printer. Yes, I have pressed the WPS button on the printer.

If anybody can provide guidance on how to print an email, say, that is on the iPad I would be delighted.

Curiously, I can air print quite happily from a Nexus 10 to the laser printer.