Brother MFC-J3520 Service Manual page 233

(3) Release the wiring of the PF encoder/registration sensor harness.
(4) Remove the one screw (SCREW BIND M2x12) and remove the PF encoder
sensor holder from the Paper feed motor frame ASSY.
(5) Remove the PF encoder sensor PCB ASSY from the PF encoder sensor holder.
(6) Disconnect the PF encoder/registration sensor harness from the PF encoder
sensor PCB ASSY.
PF encoder sensor holder
5
PF encoder sensor
PCB ASSY
SCREW BIND M2x12
PF encoder/registration sensor harness
Assembling Note: Mount the PF encoder sensor PCB ASSY as shown in the figure
PF encoder sensor holder
PF encoder/
registration sensor harness
Harness routing: Refer to
Paper feed motor frame ASSY
4
Fig. 3-133
below.
PF encoder sensor PCB ASSY
Paper feed roller belt
Fig. 3-134
" Lower cover (Left side)"
12
3-113
Lower cover
Confidential