At one time at least so many HP II type laserprinters were showing up I
think I could have built a house out of them. Not so many these days, and
unfortunately many are not in the perfect condition that used to be so easy
to find. That said I expect to have most of mine gone by the end of the
year, and that makes swap vs repair a fairly obvious choice.
OTOH I am kind of sold on my HP LJ4, and still look for neat toys to give
it. (bottom large paper thingy).