I have added a network (AppSocket/JetDirect) printer using YaST2, the connection test succeeds, and I can telnet to the printer on port 9100, but any jobs submitted using 'lp', 'lpr', or the 'Print test page' function in YaST just sit in the queue and never print. Running tcpdump to show traffic between the server and the printer only shows a couple of SNMP packets, and no other traffic. This doesn't seem to be a network connectivity issue, because I am able to cat a file and pipe that to netcat and send it to port 9100 and it prints - albeit with the stair-stepping effect.