Document Detection Sensor Pcb / Document Scanning Position Sensor Pcb - Brother HLL3290CDW Service Manual

9.11.5 Document detection sensor PCB / Document scanning position sensor PCB

(1) Push the Hook of the Lower document chute to remove the Document detection sensor
PCB from the Lower document chute. Disconnect the ADF sensor harness ASSY from
the Document detection sensor PCB.
(2) Release the Lock of the Conductive bushing to remove the Document feed roller 1 from
the Lower document chute.
(3) Rotate the Document scanning position actuator in the direction of the arrow. Push the
Hook of the Lower document chute to remove the Document scanning position sensor
PCB from the Lower document chute. Disconnect the ADF sensor harness ASSY from
the Document scanning position sensor PCB.
Hook
Lower document chute
ADF sensor
harness ASSY
Document scanning
position sensor PCB
Hook
Fig. 3-36
3-55
Document feed roller 1
Document detection
sensor PCB
ADF sensor
harness ASSY
Document scanning
position actuator
The lock of
Conductive bushing
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