I got an email from a user that I'd just handed a new CentOS 7 workstation
to, wondering where all the printers were.
It took some investigation to find /etc/cups/cups-browsed.conf, and see,
in it, at the very bottom of the file:
# NOTE: This file is not part of CUPS. You need to start & enable
cups-browsed service.
Which appears to be brand new with 7, and I have not seen any mention of it.
Enabled and started, and the network printers are visible on the cups
localhost web page->printers.
mark