This is what I use to access a postscript LaserJet via a JetDirect Ethernet module.
In /sys/lib/lp/devices:
slp_a3 SLP_A3 slp-oh-a3 A3_LPQ - post+duplex+nohead generic
lpdspool lpd - - FIFO
I also have a line in my /lib/ndb/local of the form:
sys=slp-oh-a3 ip=172.19.73.14
And in my $home/lib/profile:
LPDEST=slp_a3
-Steve
