Gear Drive Unit - Brother IntelliFax-3550 Service Manual

1.18 Gear Drive Unit

(1) Take out the heater harness (blue and brown wires) from the clamps provided on the
gear drive unit.
(2) Take out the main motor harness, solenoid harness, and drum grounding harness from
the clamp provided on the main cover.
Gear drive unit
Main motor
Clamp provided on the main cover
(3) Remove the three screws and take out the gear drive unit.
Main motor harness
(from the main PCB)
Heater harness
(blue and brown wires)
Solenoid harness
Main motor harness
(Rear)
(Rear)
Drum grounding harness
Gear drive unit
Drum grounding harness (from the
high-voltage power supply PCB)
Solenoid harness (from the main PCB)
IV – 23
Relay PCB
Main cover (placed upside
down)
Main cover (placed upside
down)