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Confidential
2. ELECTRONICS
2.1 General Block Diagram
Fig. 2-2
High-voltage
power supply
Low-voltage power supply
Fuser thermistor
Main PCB
Regist front
sensor
Main fan
LT sensor PCB
(PE+PEDGE)
Regist rear
sensor
Toner
sensor PCB
(Light
reception)
(Main fan)
Toner LED PCB
(Light emission)
Power supply fan
Interlock switch
(Cover sensor)
Wireless LAN
(Wireless LAN model)
MP sensor PCB
Tray1 solenoid
Regist solenoid
Main motor
Panel PCB
DX solenoid
DX unit sensor PCB
MP solenoid
LT solenoid
Front relay
PCB
New toner
sensor
Rear relay
PCB
Paper eject
sensor
LT PCB
LT1
LT sensor PCB
(PE+PEDGE)
LT solenoid
LT PCB
LT2
Polygon motor
Laser diode PCB
Sensor PCB
(PE+PEDGE)
Document front sensor 1
Document front sensor 2
Document rear sensor
Switch back sensor
Scanner unit ASSY
ADF
ADF relay
PCB
FB cover
sensor
Battery
NCU PCB
Speaker ASSY
CCD module
Home position
sensor
Scanner motor
FB