Brother HL-3450CN Series User Manual page 160

CHAPTER 6 OPTIONS
Insert the connection cable into
9.
the printer's connector.
Lock the printer and the Tray unit
10.
at the front by turning the Metal
Plate Lock as shown below.
Install the covers on both sides
11.
of the Lower Tray Unit. Install the
covers by fitting them first to the
rear of the printer and then fit the
cover into the front of the printer.
6-4
Fig. 6-7
Fig. 6-8
Fig. 6-9