Brother MFC620CN Service Manual page 182

6) Fit the FFC support to the head joint, sliding it along the joint's cable clamp.
7) Route the head flat cable 1 as shown on page 5-38 and secure it to the lower cover with the
double-sided adhesive tape attached in 1) above.
8) Mount the head cover.
FFC support
Carriage PCB
Cable clamp on the
head joint
Double-sided adhesive tape for
securing the head flat cable 1
Opening
5-44
Flat core
Head flat cable 1 (17-pin)
Head flat cable 2 (19-pin)
Main PCB
Double-sided
adhesive tape
Lower cover
Confidential