Setting Up your Printer with Panther.
Go to Applications -> Utilities -> Print Center. And Start up the application Print Center. This will be on the dock for some.

Click on ADD.

For Bishop 321 choose from the popup window from AppleTalk Network to ADMIN and then APBI321 as shown below.

For the Lab Printer Change the pull up window to ACAD 
Then Choose APBI340.

Click ADD. Auto Select should choose the proper printer type.
For those who wish to add by IP BI340 is: 136.183.130.17 it is an HP Laserjet 8150 series
BI 321 is: 136.183.2.238 it is a HP Laserjet 4200 series.
YOUR OWN PRINTER.
Turn your printer on. Change the pop up window to USB. It should show the printer in the window. Click on add.