Do you know what happened to cause it to die? I had a HP laserjet all-in-one where the bulb went out of alignment. HP told me to unplug it and plug it in again a bunch of times. Each time I did it, the bulb moved a little farther along until it got to the very end and it reset itself to the beginning.
How old is it? If it's 3+ years old, I would get a new one because things have improved so much (like speed and quality)