Brother DCPJ525W Service Manual page 226

Encoder strip guard film
(3) At the right end of the CR frame, push the rear end of the guard film spring inwards,
unhook the right end of the encoder strip guard film from the spring, and then unhook the
left end from the CR frame.
(4) Turn the encoder guard film in the direction of the arrow shown below, align the
rectangular hole in the right end of the film with the boss of the strip support and take the
film off. Remove the guard film spring.
Lower cover
Encoder strip guard film
3-89
Guard film spring
Strip support
(3_079)
Confidential