Brother PT-9600 Service Manual page 85

(3) Fit the slot on the PCB to the hooks on the body KB cover and assemble them.
Body KB cover
Fig. 3.2-36 Reassembling the KB Unit/Rubber Key Unit (3)
(4) Fit the fix plate to the hooks in ten places on the body KB cover and secure it to the body
KB cover with five screws.
Screw (No screw for U.S.A. spec.)
Hooks
Fig. 3.2-37 Reassembling the KB Unit/Rubber Key Unit (4)
Screw
Hooks
III-51
PCB
Screw (No screw for EU spec.)
Body KB cover
Hook
Screws
Fix plate
PCB
Hooks