Apple Color StyleWriter 1500 - Manual (Page 119)

6 When you see a message on your screen, follow the directions and insert the next disk.
The Installer ejects disks and asks you to insert others. Keep following the
instructions on the screen until the process is complete.
7 When you see a message reporting that the process was successful, click Restart.
The Installer restarts your Macintosh. When the computer restarts, the
desktop printer icons appear with an X on them.
8 After the computer restarts, drag your old desktop printer icons to the Trash.
9 Read the next section to learn how to use the PrintMonitor to monitor and control print
requests.
119 Removing the Desktop Printing Software