Brother MFC-9420CN - Marker Sensor; Toner Density Sensor PU

Confidential
5-44
5.1.26 Marker Sensor
(1) Disconnect the two connectors connecting to the maker sensor and toner density sensor PU.
(2) Remove the setscrew (BT4x8, 2 pieces), and remove the sensor base (TB) from the frame.
(3) Remove the maker sensor from the sensor base (TB).
Fig. 5-70
5.1.27 Toner Density Sensor PU
(1) Remove the setscrew (BT3x8, 2 pieces) of the toner density sensor PU from the sensor base
(TB).
(2) Remove the toner density sensor PU from the sensor base (TB).
Fig. 5-71
BT4x8
Sensor base (TB)
Make
r
senso
r
Toner density sensor PU
Connector
Connector
Sensor base (TB)
Toner density sensor PU
BT3x8