Cassette Sensor / Paper Empty Sensor; Paper Eject Sensor - Brother mfc8440 Service Manual

CHAPTER 3 THEORY OF OPERATION
2.4.3

Cassette sensor / Paper empty sensor

Detect if the paper tray is installed. They also detect if there is paper in the paper tray .
Cassette sensor PCB ASSY
2.4.4

Paper eject sensor

Detects if paper is ejected from the fixing unit.
Fixing unit
Eject sensor PCB ASSY
Fig. 3-27
Fig. 3-28
3-18
Paper empty sensor
Cassette sensor