the advice from Ted Roche worked:
I finally figured out I had to run that command from the iMac, not from f14box:
on the iMac I ran
cupsctl BrowseRemoteProtocols=cups
then after futzing with the iMac Print & Fax preference pane in the System Preferences window.
I can finally see my f14 printer from the iMac. and printing from the iMac works.
All of this days of pain because of that change in OS-X.
Save me from future OS-X changes.
Thanks again to Ted Roche and this list!
Jack