Digital BW, The Print

I've got a new 1280 loaded with UT2 (Eboni) that I've regrettably not
used for a couple of months.  Since I've finally had the opportunity
to scan a bunch of negs, I'd now like to print them, however, all but
one of the print heads are printing VERY faintly (if at all) on the
Nozzle Check print.  I expected this would be the case and now need to
undergo a good head cleaning.

I've checked the archives for the proper way to clean my 1280's print
heads, however, I didn't find anything.  Does anyone know of a doc
that lists head cleaning instructions and techniques?

What steps should I do in what order?  Any help is greatly
appreciated!

Regards,
  B2