Phaser 6280 Not Responding

[kenw]

Dear all

Have just reconnected my 6280 after relocation. New toner cartridges (all correct Xerox brand) installed, Ethernet connected, new drivers (Mac OS 10.11.6 El Capitan) installed. Config page prints fine, reports IP address etc. Built-in Demo page prints fine. BUT THEN

Send a test print from the Mac. Status display shows READY

But then nothing. My Mac's print queue reports PRINTER NOT RESPONDING.

Log in to the printer from Web browser, Centerware pages all come up fine, check and update as needed.

Try again. Still nothing. 

What do I do next?

TIA

Ken in Caen (home to 1000 years of history)

[Joe053204-hcl]

Switch to an LPD or HP Jet direct port, don't use IPP

As seen here (different model, same scenario)