I print to lasers which are connected via HP jet-direct boxes using:
/sys/lib/lp/devices:
slp_a3 SLP_A3 slp-oh-a3 A4_LPQ - post+duplex+nohead generic lpdspool lpd
- - FIFO
/lib/ndb/local:
sys=slp-oh-a3 ip=172.19.73.14
The jet-direct boxes use the BSD printing protocol which
is documented in rfc1179, I have not heard of printers using ftp but
its possible.
The easiest test is to try 'lp -q' (query queue) and see if you get
somthing like this:
larch% lp -q
transmission log:
: 100.00% sent
78589 bytes sent, status: waiting for end of job
78589 bytes sent, status: end of job
printer queue:
connecting to tcp!slp-oh-a3!printer
trying from port 721...connected
JetDirect lpd: no jobs queued on this port
-Steve