As400 printer setup issue

Hi.
    I have a brand new Lexmark T642 that has been set up on the network by IP 
Address. I have setup the printer on the as400 as I would a standard printer 
but with LAN & IP in the setup. The as400 keeps coming back with re-trying 
connection over and over again. I can ping the printer from dos and have also 
been able to print from windows so the printer itself is working. I have tried 
different ports in the printer setup on the as400 such as IPDS, RAW, and SNMP. 
All come back the same as trying to reconnect. I also made sure the ports on 
the physical printer were set to unsecure/secure incase the port was blocking 
communication from the as400. My belief is that the way I am trying to set it 
up is wrong and there must be something else needed. I am assuming there must 
be a step by step guide or advice from someone to setting up an IP printer like 
this, but can't really find anything that helps. One website did mention 
something about remote printing for an HP IP printer but no step by step. My 
experience with the as400 is still in it's infancy. Has anyone run into this 
before and have an answer they could share? I don't want to physically connect 
this printer to a dummy terminal just to make it work on the as400.

Thanks 
Chris Templar