Apple Macintosh System 7.5 - Manual (Page 46)

Upgrading System 6 LaserWriter drivers
If some computers on your network will continue to use System 6 after others
are using System 7.5, you should upgrade the printer drivers on the System 6
computers to avoid version conflicts that interfere with printing.
You can upgrade the printer software over the network from the Macintosh
System 7.5 Group Upgrade CD or from one of the System 7.5 installation disks
provided.
1 Open the printing folder or disk.
m Using the Macintosh System 7.5 Group Upgrade CD:
Open the Printer Update folder.
m Using the installation floppy disks:
Open the disk containing the printing software.
2 Open the Installer program.
The Installer’s Welcome screen appears.
3 Click OK to clear the Welcome screen.
The Installer dialog box appears, listing the printer drivers to be updated and
the disk on which the drivers will be installed.
4 If necessary, click the Switch Disk button until the name of the disk you want appears.
WARNING You cannot use System 6 LaserWriter drivers on a System 7.5
Macintosh.
44 Chapter 5