Printer Compatibility

ANy Thoughts on my predicament? i was running a hp all ij 1 printer wired to
my xp desktop without problems. I recently bought wireless vista notebook
and decided to set up a network again. Now its wall-modem-router
router wired to XP desktop and HP printer. print works fine from 3
users on vista but on the wired xp only the administrator (me) can print.
the 2 limited users will not print.

and yes i tried elevating the status of one of the non admin users on xp to
admin. No avail