Printer sharing between gutsy and feisty (Ubuntu)

[John Graddy]

I am running Ubuntu on three systems - two running feisty and one
running gutsy Beta with all updates.  One feisty system has a HP 960C
printer attached.  The other feisty system has a HP Deskjet 4100.  The
gutsy system has a HP 6100 Series All-In-One attached.  Printer sharing
has been activated on all three systems.

The gutsy system can access all of the available printers.  The two 
feisty systems can access only the printers on feisty systems

When I look at the available printers
(system->administration->printing), the two feisty systems show only the
HP 960C and the HP 4100.  The gutsy system shows all three printers.
>From the gutsy system, I can print on the 970C, the 4100, and the 6100
but I can't print on the 6100 from either feisty system.

When all three systems were running feisty, all printers showed up on all 
systems.

HPLIP 2.7.7 is running on all three systems.  What am I doing wrong?

Thanks,
John