The top *couple inches*?? You sure you’re not set as legal-size pages printing onto letter size? The HP will of course treat it as legal, but with only the letter paper in there it is usually the top that gets cut off.
I can tell you we have 9.2.2 here, people use Word98 in it and print to an HP LaserJet 4000n printer with no problems. And I didn’t change any settings in Word to do so.
Are you using the LaserWriter driver or one from HP or Adobe? That can make a difference too. Here we use Apple’s LaserWriter 8 driver, utilizing only the proper PPD (PostScript Printer Description) file from HP. Works fine.