Obviously, I didnt know how to use this forum with my first post. Initially I had access to the programming menu for my hp4+, now it ignores my attempts to change the values.
It has the JetDirect card, and I can ping it, but it doesn't print. One time it did receive a signal/print request from my G4 Titainium with Mac OS 10.5.8, and the error said Invalid pers, I have no idea what that means.
The printer is connected to the network through a router.