Making a network printer wireless

Hey

I have this HP 8100DN (or something) and while it has NEATO network capabilities, its needed to be wireless. And from the current config, someone just hooked it up to a wireless access point (or hub, I havent actually checked it out yet) and while it worked fine peer to peer wireless printing (laptop has wireless) when put into a home wireless network scenerio it has stopped working.

Does anyone have any ideas or a better way to do this? Thanks

Should the printer be even hooked up to a wireless access point or whatever to be made wireless or is there some sort of wireless piece of hardware I can hook up to this printer to make it work in an already wired/wireless home environment?

Spanks!