You only need to install driver for Windows computers.

The PSAdmin is a windows based administration tool. Only network administrator should install it.

01.	Please install print server on Windows (9X/ ME / NT / 2K/ XP)
02.	With the windows printer manager, share the printer connected with print
03.	Use the “net use lpt1 \\windows-pc\printername” command to redirect the print port to shared print port

Yes, please make sure your printer support postscript before you install the print.
Server and choose the Laser writer as the printer model.

Yes, you can print a job from Unix / Linux using LPD protocol.

One port is lp1; three ports for lp1, lp2 and lp3

We use the port 515 as the port number for LPR/LPD printing.

Please type PSPASS in the PSAdmin utility and then you can change password setting.

Please refer to this file.

Yes. It can support LPR. Please download Gimprint  from www.linuxprinting.org and install it.

Please check the IPX protocol is installed on your computer and kindly check your network cable.
If the problem still exists, try contact your original dealer for repair or replacement.