There are primarily two configurations that allow the HP Deskjet 1220C series printer to be used with an HP Jetdirect print server. These configurations are:
Client/Server or Network connect
Figure : HP Jetdirect connect
In a Peer-to-Peer connect (Direct Mode) configuration, the printer is connected directly to the parallel port of an HP Jetdirect external print server. The HP Jetdirect print server is then connected to the network. The computers on the network are known as the client or remote computers. Print jobs sent from the remote computers travel across the network, directly to the HP Jetdirect print server, and then out the parallel port to the printer.
With a Client/Server or Network connect configuration, print jobs sent from client computers travel across the network to a Novell NetWare or Windows server. The Novell NetWare or Windows server will spool all the print jobs for the printer and then send them to the HP Jetdirect print server (which sends them to the printer) one at a time.
A Peer-to-Peer connect requires each computer on the network to spool its own print jobs. The HP Jetdirect print server will determine which client computer is the next to print after the current print job finishes printing. Each client with a print job must wait and check back at periodic intervals for its turn to print. This can create a lot of network traffic when there are print jobs from multiple clients, all trying to use the printer at the same time.
A Client/Server connect can be used to significantly reduce the amount of traffic on the network (compared to a Peer-to-Peer connect) because all print jobs are sent to the Novell or Windows server. The server will determine the print job order and send the print jobs to the HP Jetdirect print server without the client computers needing to wait for a turn.