Brother HL-4200CN Service Manual page 169

2.4.5 Sensor no toner
1) Remove the 4 hooks securing the sensor no toner to the holder toner cartridge
ASSY.
2) Remove the sensor no toner from the holder toner cartridge ASSY.
2.4.6 Box ASSY CRUM reader
1) Remove the connector on PWBA CRUM reader. Remove harness ASSY toner 4
from the slit part of HSG base CRUM.
2) Remove two screws which are fixing box ASSY CRUM reader to plate ASSY
dispenser HBN.
3) Remove box ASSY CRUM reader from plate ASSY dispenser HBN.
Harness ASSY toner 4
Holder toner cartridge ASSY
Sensor no toner
Fig.4-91
Plate ASSY dispenser HBN
Fig.4-92
- IV-51 -
Box ASSY CRUM reader