Ok, i'll bite, probably for more than he paid for it, right ? :-).
Sad about hp. How the mighty have fallen. I don't buy any modern hp printers. The P suffix models are "personal" whatever that means but they are the worst in terms of plasticicity. I got rid my 1987 vintage, bought new, still working lj2 because of memory limitations, then ran lj4's for years. Still have a 4 for a spare, but the family now has an lj5 for text and it just works. The lab has an lj5000n - need A3 for the cad stuff. The lj5000 is a very good printer and low cost now.
The cheap chinese roller kits from ebay work wonders for the old lj series, like having a new printer in terms of paper feed. It's about the only thing that ever wears out...
Regards,
Chris