The printer driver listed as "HP Laserjet 4/5/6" does not
fuction with a HP Laserjet 5MP. No big deal, the driver
listed as "Postscript printer" does work, but it is very
misleading because during the install process when you see
your exact printer listed and then the driver doesn't work
it can be very frustrating. By the way, the Laserjet 5MP is
a Postscript printer.
an explanatory not saying not to use that driver for postscript
printers has been added to the latest rhs-printfilters.