[comp.sys.mac] How print over a mainframe?

jcocon%hazel.cs.clemson.edu@hubcap.clemson.edu (James C O'Connor III, 2846) (05/16/89)

The only laserwriter I have access to is attached to a mainframe.  Does anyone
out there know how I can print my Mac files on it?  I know there is a way to
get the post script file saved to hard disk rather than printed (details ?,
I know the way exists, but not how to do it), and I can upload those files to
the mainframe.  How do I then print the files - do they need any preprocessing?
This is a unix system, btw.  Thanks for any help.  

Jim