Brother DCP-9055CDN Service Manual page 258

(3) Pass the Second side CIS harness through the ADF unit.
Second side CIS harness
Upper document chute ASSY
(4) Affix double-sided adhesive tape to the FFC holder ASSY as shown in the figure below.
(If the double-sided adhesive tape has already been affixed, be sure to remove it, and
then affix new double-sided adhesive tape.)
Fig. 3-90
FFC holder ASSY
Fig. 3-91
3-77
Lower chute ASSY
Double-sided adhesive tape
Confidential