Apple LaserWriter 12/640 PS - Manual (Page 280)

This chapter describes how to load the LaserWriter 12/640 PS paper cassette
and multipurpose tray with paper. It describes how to load standard paper,
letterhead, three-hole punched paper, envelopes, labels, and transparencies
for printing.
You can purchase additional printing options for use with your LaserWriter
12/640 PS, including the LaserWriter 12/640 PS 500-Sheet Cassette and
Feeder and the LaserWriter 12/640 PS Envelope Cassette. This chapter gives
instructions for loading paper or envelopes into these options. (For
instructions on attaching options, see Chapter 5.)
For information on ordering options, see Appendix D.
The way you control the printer from your computer depends on the type of
computer and program you are using. For general information about printing
with a Mac OS computer, see Chapter 6. For information about printing
with an IBM PC or compatible computer using Microsoft Windows or DOS,
see Chapters 7 and 8. For specific information about printing with a
particular program, refer to the documentation that came with the program.
For best results, Apple recommends that you use paper with weight of at
least 20-lbs.
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