Belt Sensor (Pbs); Transfer Drum 3 - Brother HL-3450CN Service Manual

4.2.9

Belt sensor (PBS)

(1) Remove the set screws ST3x6 (1 pc.) to remove the belt sensor base from the main
frame.
(2) Disconnect the connector (1 pc.) to the belt sensor.
(3) Release the catches to remove the belt sensor from the base.
4.2.10

Transfer drum 3

(1) Remove the set screws ST4x6 (2 pcs.) and remove the stay 'A' by sliding it forwards and
then upwards in the plastic guide slots.
(2) Open the rear access cover (TR unit cover 3) and protect the surface of the transfer
drum 3 by covering it with paper. Then push the transfer drum 3 up and forwards from
the transfer unit side.
(3) Release the transfer drum 3 from the shaft supports, and pull up and remove the transfer
drum 3 from the top of the printer.
Transfer drum 3
Sensor base
Belt sensor
Fig. 7-39
Stay 'A'
Fig. 7-40
7-29
HL-3450CN SERVICE MANUAL