General Block Diagram; Electronics - Brother HL-5240 Service Manual

CHAPTER 2 THEORY OF OPERATION
2.

ELECTRONICS

2.1

General Block Diagram

Main fan
Power supply fan
Sensor PCB
(PE+PEDGE)
MP sensor PCB
Tray1 solenoid
Regist solenoid
MP solenoid
Interlock switch
(Cover sensor)
Toner LED PCB
(Light emission)
Toner
High-voltage
sensor PCB
power supply
(Light
reception)
Regist front
sensor
Regist rear
sensor
Front relay
PCB
New toner
sensor
Wireless LAN
(HL-5280DW)
Polygon motor
Laser diode PCB
Low-voltage power supply
Rear relay
PCB
Paper eject
sensor
DX solenoid
(HL-5250DN/5270DN)
Main PCB
LT PCB
LT PCB
Main motor
Panel PCB
Fig. 2-2
2-2
Fuser thermistor
DX unit sensor PCB
LT Sensor PCB
(PE+PEDGE)
LT solenoid
LT1
LT Sensor PCB
(PE+PEDGE)
LT solenoid
LT2
Confidential