$this->bbcode_second_pass_quote('pepedog', 'I') will let you know how Airprint works soon (hopefully), it's appearing on iPad print but doesn't actuelly print, think reboot is required?
Edit: Airprint working, even reported to iPad ink level was low
This helped http://atxconsulting.com/blog/tjfontaine/2010/11/21/automatically-generate-airprint-avahi-service-files-cups-printers
Note that you have to change first line of airprint-generate.py to
#!/usr/bin/env python2
Running as root
./airprint-generate.py -d /etc/avahi/services
will scan configured printers in cups, and create avahi service files in the right place (then restart avahi daemon)