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2.5 Main Components
ADF unit
Modem PCB ASSY
Back cover
Duplex tray
Develop
clutch 51R
Eject motor
Panel PCB ASSY
External
temperature/
humidity
Wireless
sensor
LAN PCB
Fuser drive gear 39
Main PCB ASSY
Relay front PCB ASSY
Side cover L
Joint cover ASSY
Outer chute
Fuser cover
Fuser unit
Eject sensor
PCB ASSY
Toner amount
detection sensor
PCB (light reception)
Internal
temperature
sensor
Back cover/
duplex tray
sensor
Paper feed
motor
Registration clutch
LT/TT connector
Paper tray
Fig. 2-7
2-11
Laser unit
Main fan
Toner amount detection
sensor PCB (light emission)
Paper empty sensor
PCB ASSY
T1 paper feed
sensor PCB ASSY
MP paper empty sensor
PCB ASSY
PF roller
holder ASSY
MP roller
holder ASSY
T1 pickup clutch
High-voltage power
supply PCB ASSY
Document scanner unit
USB host PCB ASSY
Panel unit
Side cover R
Low-voltage power
supply PCB ASSY
Paper stopper
Front cover ASSY
MP feed frame
MP cover ASSY
Confidential
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Troubleshooting
