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1. Remove the paper cassette from the printer
(if installed).
2. Squeeze the latch at the upper left of the
rear cover and pull towards you to open the
rear cover.
3. Line the Duplex Unit up with the left and
right channels inside the printer (as shown)
and slide the unit firmly all the way into the
printer.
Step 10b. Duplex Unit Installation
Note: These instructions apply to users of the Elite 21 N model who are adding the Duplex Unit
as an option. The Elite 21 DN and Elite 21 SE models ship with the Duplex Unit pre-installed.