[PLUG] "Unable to locate printer"

[Dick Steffens]

I have a Brother MFC-7820N printer (network) installed on my Ubuntu 14 
machine with CUPS. It used to work. It works from my wife's Win7 
machine. I can see it in the CUPS Printers page with a status of: Idle - 
"Unable to locate printer."

Any ideas on what I need to do to fix this?

In the meantime, I can copy files to my wife's machine and print from 
there, but that's a nuisance.

-- 
Regards,

Dick Steffens