Brother MFC5890CN Service Manual page 204

Routing the Head Flat Cables When Mounting the Carriage PCB ASSY
1) Mount the carriage PCB ASSY on the head/carriage unit (see the previous page).
2) On the head/carriage unit, route the head flat cables through the cable guide and fit the hole in the
film over the boss as shown below.
Carriage PCB ASSY
Carriage-head flat cable
3) Pass the head flat cables through the flat core,
fit the folded section of them (with film) over
the boss and set the flat core in the pocket on
the lower cover, routing the cables through the
cable guides.
Head flat cables
Folded section
Boss
Cable guide
Cable guide
Lower cover
Head flat cables
Flat core
Pocket
Cable guides
(Rear)
Hole
Cable guides
Film
Boss
Carriage PCB ASSY
Cable guide
4) Set the tube support wire onto the tube support
plate. Then, mount the tube support plate so
that the head flat cables (and ink supply tubes)
pass between the tube/cable guide on the
support plate and the lower cover.
Cable guide
Tube support plate
6-49
Head flat cables
Viewed from the rear
Cable guides
Tube/cable guide
Lower cover
Tube support wire
(6_62)
Head flat
cables
(6_63)
Confidential