Hi,

since I'm going nowhere with my attempts at getting something printed
on my new network printer (Samsung CLP550N) I'm pretty sure I am
missing something simple (as is usually the case with P9 setup).

I have tried to get an understanding of how networked printers are
meant to communicate, but googling gives me no really useful links.  I
have read about the LPD protocol, but that appears to be for queueing
and spooling on a host machine.  I have found lots of references to
port 9100 and JetDirect, but no actual details of what that is and how
the protocol works.  Apparently some network printers allow FTP to
pring, but the CLP550N just gives me connection disallowed.

I added the printer as cpl550n into my /lib/ndb/local, and I can
access it's web interface via port 80 fine and dandy.

I have tried enabling tcp515 in /rc/bin/services on my
auth/cpu/fossil/venti server (called prunelle) and added a line like
this to my /sys/lib/lp/devices:


clp550n robbys-room     prunelle        clp550n -       post+600dpi     generic 
lpdspool        lpd     -       -       FIFO

Using that, I get some activity in the queue and log directories, but
no printing.  I'm guessing this is due to me actually not having said
how to get to the printer proper.  So, I tried something like this:

clp550n robbys-room     prunelle        tcp!clp550n!9100        81920   
post+600dpi                     generic         generic         generic         
generic         tcppost         FIFO

But now I am getting timeouts from tcpostio; so my guess is that port
9100 isn't quite right or the protocol has shifted.

Does anyone have any pointers as to where I could get some information
on how to communicate with network printers.  Something where I could
telnet and try out stuff.  (I does apparently talk IPP, but there have
been discouraging remarks about that protocol in the past.)

Or alternatively, has anyone got a Samsung CLP working and would like
to let me know their setup details?

Thank you for any help,
Robby

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