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The Duplex Unit Option
This section describes how to install and remove the optional duplex unit. The duplex
unit should be installed before installing the 500-sheet paper tray option or other
options that increase the weight of the printer.
The optional duplex unit allows you to make two-sided prints. Acceptable paper sizes
and weights for use with the duplex unit are as follows:
Paper Size A4, Letter, 13-in. Legal (Folio), 14-in. Legal
Paper Weight 16 lb to 28 lb (60 grams/meter
2
to 105 grams/meter
2
)
Installing the Duplex Unit
Use the following procedure to install the duplex unit:
1. Switch the printer power off.
2. Unplug the printer from the wall outlet.
3. Remove the power cord from the back of the printer.
CAUTION:
Do not touch the fuser (labeled) inside the printer. It can be extremely hot.
Always wait at least 40 minutes for the fuser to cool down.
4. Press the release lever and open the back cover.
140 Network Printer 17: User’s Guide