Hp 4100 + LPI

[eanda10]

I set up a new Hp4100 on my network running via tcp/ip it prints fine from my SCO open server 5.0.4 except when you try to send the -o lpi=# option you get a message "The following options can't be handled
-o lpi="

after looking through the interface scripts the option of lpi does exist.

Does anybody got any ideas??