HP Jetdirect 615n (J6057A) , 610n (J4169A), and 620n (J7934A) 10/100Base-TX print servers support 10 or 100 Mbps operation using full duplex or half duplex transmission channels. By default, the print server will attempt to auto-negotiate its link operation and this is usually successful.
When connecting to network hubs and switches that do not support auto-negotiation, the print server will configure itself for 10 Mbps or 100 Mbps half duplex operation.
For example, when connected to a non-negotiating 10 Mbps hub, the print server card will automatically set itself to operate at 10 Mbps half duplex.
If the print server is not connecting to the network or it cannot be found in HP software or printer driver network configuration software, the link speed setting may need to be manually set to match the network.
note:HP Web Jetadmin 7.5 and newer can be use to configure the link setting, however since the HP Jetdirect print servers auto-negotiate and the need to manually set the link speed should be rare, it is probably easier to do this with a simple tool such as the printer control panel, the HP Jetdirect embedded web server, or Telnet.