Konica Minolta magicolor 7450 grafx - Manual (Page 227)

Duplex Option 213
6
Prepare the duplex option.
"
Before installing the
duplex option, check that
the hook is the correct
direction as shown in the
illustration.
7
Insert the two tabs on the duplex
option into the mounting holes in
the printer to install the duplex
option.
"
Support the duplex option
with your hands until it is
securely mounted onto
the machine.
8
Open the duplex cover.