Apple LaserWriter 12/640 PS - Manual (Page 112)

Installing the envelope cassette
IMPORTANT The LaserWriter 12/640 PS envelope cassette fits into the
500-sheet feeder. For instructions on installing the optional 500-sheet
cassette and feeder, see “Installing the 500-Sheet Cassette and Feeder,”
earlier in this chapter.
1 Unpack the envelope cassette and remove all packing materials.
2 Remove the 500-sheet cassette and insert the envelope cassette.
3 Configure your printer software to use the envelope feeder.
For configuration instructions, see “Configuring Your Printer Software for
New Options,” later in this chapter.
For instructions for loading paper into the envelope cassette, see Chapter 9.
For information about printing options,
m see Chapter 6 if you are using the Mac OS
m see Chapter 7 if you are using Windows 3.1 or DOS
m see Chapter 8 if you are using Windows 95
Envelope cassette 500-sheet feeder
112 Chapter 5