This video shows how to set up an HP 100 Mobile or HP 150 Mobile printer to work with your iPad. This requires the HP 1200w NFC.
See my blog here: http://makethisstuffwork.blogspot.com/2014/09/hp-has-answered-our-mobile-printing.html
HP 1200w NFC - http://www.shopping.hp.com/en_US/home-office/-/products/Accessories/Printer_Networking/E5K46A?HP-1200w-NFC-Wireless-Mobile-Print-Accessory
Mobile Print Bundle for HP 1200w - http://www.amazon.com/gp/product/B00N5EH9RU
HP 100 Mobile - http://www.shopping.hp.com/en_US/home-office/-/products/Printers/HP-Officejet/CN551A?HP-Officejet-100-Mobile-Printer-L411a
HP 150 Mobile - http://www.shopping.hp.com/en_US/home-office/-/products/Printers/HP-Officejet/CN550A?HP-Officejet-150-Mobile-All-in-One-Printer-L511a
