Apple LaserWriter 12/640 PS - Manual (Page 167)

Installing the 500-sheet cassette and feeder
Follow these instructions for installing the 500-sheet cassette and feeder.
For instructions on loading the feeder with paper, see “Filling the Optional
500-Sheet Cassette” in Chapter 10.
Before you install the 500-sheet feeder:
m The printer must be turned off and the power cord unplugged.
m The printer must be disconnected from your computer or network.
The cassette base adds approximately 5 inches to the height of the
LaserWriter 12/640 PS. Begin by selecting a location for the LaserWriter
12/640 PS that provides enough room to accommodate the increased height
of the printer.
If you intend to keep the printer in its current location, make sure that
adequate room will be available for opening the top cover, loading paper, and
maintaining the printer. You will also need to temporarily move the
LaserWriter 12/640 PS from its current location to place the cassette base in
its place. When moving the printer, be sure to place it on a strong, stable
surface that can support its weight.
IMPORTANT If you purchased the optional duplex printing unit, follow the
instructions outlined below. The procedure is the same, but the 500-sheet
cassette and feeder is installed under the duplex printing unit.
1 Turn off and unplug the printer, and disconnect the network cables.
2 Unpack the 500-sheet cassette and feeder and remove any packing materials within the
base and paper cassette.
500-sheet cassette
142 Chapter 5