I would like to thank the following people who have assisted in the development of this document:
For providing a plethora of HP filter programs for perusal.
For the Ghostscript-to-HP filter.
For debugging why printing from Windows 95 to a FreeBSD system simulating a PostScript printer with Ghostscript didn't produce correct output, and suggesting a fix, which is included herein.
For suggesting using "\033&l0H" instead of "\f" to eject the last page on HP printers; the latter could eject an extra blank page while the former never does.
For allowing me to spend more time with FreeBSD than with her.