Brother MFC990CW Service Manual page 271

Inner chute ASSY, registration sensor actuator, and PF encoder/registration sensor
harness unit*
(16) Release the three latches of the inner chute ASSY from the engine unit. First pull and
release the rightmost latch (viewed from the rear) and then the remaining two ones.
Note: Do not pull the inner chute ASSY away from the engine unit since it is connected to
the engine unit with the PF encoder/registration sensor harness.
Assembling Note: When mounting the inner chute on the engine unit, first set the left two
latches and then the rightmost one.
(17) Release the PF encoder/registration sensor harness from the cable guides on the inner chute
ASSY. (The routing detail is shown on the next page.)
Inner chute ASSY
Latch
Paper feed
motor harness
PF encoder PCB
Registration
sensor PCB
Registration
sensor wires
Latch
Engine unit
Carriage motor harness
* The PF encoder/registration sensor harness unit consists of a PF encoder
PCB, registration sensor PCB, and PF encoder/registration sensor harness.
Latches
PF encoder disk
PF encoder sensor wires
6-87
CR guide rail
(Front)
Engine unit
PF encoder/registration
sensor harness
(6_81_1)
Confidential