Although the printer HP Deskjet F2430 was automatically detected upon usb connection to my ubuntu-9.10 desktop, the 3.9.8 version of hplip that came via apt repository did not quite get printing to work.
I headed off to hplipopensource.com, downloaded and installed the latest driver (version 3.9.12 as of this writing) and got the all-in-one printer to work just following the install wizard.
I have yet to test the scanner... but that's going to be another update.