The 75XX doesn't do Airprint, and the Mobile Print Portal works with Xerox Mobile Print
To print to a WC75XX you would need a 3rd party software running on a Mac to share it out via Airprint. Or you would need to buy one of Xerox's Mobile Solutions
i HAVE DOWNLOADED THE XEROX MOBILE PRINT PORTAL AND IT CANNOT LOCATE THE PRINTER? ANY SUGGETIONS?