2-9
Confidential
2.4 Block Diagram
Fig. 2-6
Main PCB
Eject sensor PCB
Eject sensor
Center thermistor
Side thermistor
Low-voltage
power supply PCB
New toner sensor PCB
New toner sensor
Heater relay
Heater
Panel PCB
FAX LED
SCAN LED
COPY LED
WLAN LED
Power key
LCD
Key PCB
Ten-key LED
Home LED
Back LED
Cancel LED
Wireless LAN LED
Power key
Color LCD
Touch panel
Fuser unit
LD PCB
BD sensor
Main motor
Registration clutch
ADF motor
Second side CIS unit
Document scanner motor
First side CIS unit
Speaker
T1 clutch
Polygon motor
Back cover/duplex
tray sensor
Paper feed sensor
Paper feed sensor PCB
LCD models
Touch panel models
Wireless LAN PCB
High-voltage power
supply PCB
Registration rear sensor
Registration front/rear
sensor PCB
Registration front sensor
Fan
Front cover sensor
Second side document scanning
position sensor PCB
Second side document scanning
position sensor
First side document scanning position
sensor PCB
First side document scanning
position sensor
Hook PCB
Modem PCB
ADF cover/document detection
sensor PCB
ADF cover sensor
Document detection sensor
Laser unit
ADF unit
Document scanner unit
Touch panel PCB