I have an HP P1006 that will not print bold when emulating from BosaNova. All of the other HP printers here emulate an HP LJ 4 and print perfect. If I attempt to emulate this printer as an HP LJ 4 nothing prints at all. I get the same results when trying HP III, or HP II.
In summary. I either get a printout that's not bold, or I don't get anything at all. Please note that it does print bold as a standard PC printer.