Has anyone come across this problem?

We have several laser printers. 1 is an HP IIId and another is a Laserjet
4000. Both are on the network via either a external jetdirect box or an
internal jet direct card. Both use the same environment file for printing
from MPE/ix 6.x (listed below)

&/0s
&/1O
&/2E
&/15F
&/K4S

The problem: When printing the same file to each printer, I get a different
font and line/character spacing at each printer. Checking the manuals, they
should be printing exactly the same.

Anyone have any ideas?

TIA,

Jeff