Apple Macintosh System 7.5 - Manual (Page 47)

5 Click Easy Install to accept the printer drivers listed, or Customize to select from all
available printer drivers.
The Easy Install dialog box lists only the printer types for which drivers are
already installed on your computer.
6 When you see a dialog box reporting that installation was successful, click Quit and
restart your computer.
Upgrading AppleShare print servers
A Macintosh used as an AppleShare print server may require upgrading,
depending on the version of AppleShare software you are using.
AppleShare Print Server 4.0 or later
If you are using AppleShare Print Server 4.0 or later, you can upgrade to
System 7.5, but do not install QuickDraw GX on the print server. Continue
to use the 7.0 (or later) printer drivers installed by the AppleShare 4.0 Print
Server. People on the network using System 7.5 and QuickDraw GX can print
on an AppleShare 4.0 Print Server.
AppleShare Print Server 3.0
The AppleShare Print Server version 3.0 (and later versions up to 4.0) are not
compatible with System 7.5. You must upgrade the server software to version
4.0 or later before installing System 7.5 on a server.
45 Performing the Group Upgrade