F15 and HP printer

[John Reiser]

>> First, accessing the printer panel from the system settings was
>> useless. No printer could be detected.

> Try system-config-printer.

https://bugzilla.redhat.com/show_bug.cgi?id=708635

I had to run from XFCE Desktop (then System > Administration > Printing)
to setup my networked JetDirect printer.  In my case I had to let the firewall
be modified in order to see the printer.  Once the printer had been set up,
then it was available to both XFCE and GNOME.

[To get XFCE, do something like "yum install @XFCE-DESKTOP",
logout, then choose "XFCE session" when logging back in.
GDM lets you choose GNOME vs XFCE at each login, and the choice
persists until explicit change.]

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