5
Open the cover of the duplex
option.
Since the duplex option is
not yet secured to the
printer, hold the duplex
option in place when
opening its cover.
6
While pushing in the knobs, turn
them clockwise until they are
horizontal.
The duplex option is secured in
place.
Make sure that both
knobs are securely
locked.
7
Close the duplex cover.
Duplex Option
143