The first place I would start is the
printing HOWTO.
I would also check the HP website and look for anything Linux related.
The printing howto should give you a pretty good jump on things, as well as Caldera's website. I browsed around the site a bit, and it looks like you should be able to configure a printer during installation, provided you chose the "expert" install mode.
Hope this helps, let us know how it goes and if you have any more questions.
Mike
------------------
It is easier to get forgiveness than it is to get permission.
Lewis' Law: People will buy anything that's one to a customer...
Hurewitz's Memory Principle: The chance of forgetting something is directly proportional to... to... uh.....