Brother DCP-9055CDN Service Manual page 261

(8) Fold the Second side CIS harness at the Main PCB ASSY side.
<A4 Model>
Fold down FFC along with the solid line
Fold up FFC along with the dotted line
<Main PCB ASSY side>
Reinforcement plate
<Legal Model>
Fold down FFC along with the solid line
Fold up FFC along with the dotted line
<Main PCB ASSY side>
Reinforcement plate
50±1 mm
(9) Mount the Second side CIS harness at the Main PCB ASSY side to the Main PCB ASSY.
Second side CIS harness
1 mm
80 mm
Fig. 3-95
Second side CIS harness
1±1 mm
45°
Fig. 3-96
3-80
45°
Confidential