Brother HL-1870N - Page 96

HL-1850/1870N SERVICE MANUAL
3-19
Laser
Main PCB
Polygon Motor
Laser Unit H
Low-Voltage
Power Supply
PCB
Fixing Unit
Halogen
Lamp
Engine PCB
Front
Registration
Sensor
High-
Voltage
Power
Supply
PCB
Drum Unit
Primary Charger (Corona Wire)
Primary Charger (Grid)
Supply Roller
Transfer Roller
Development Roller
Network
Board
(HL-1670N)
Panel PCB
Paper Dust Cleaner
FAN
Relay
PCB
60 mm sq Fan Motor
Rear Cover Sensor
Panel Back Light PCB
Toner Sensor PCB (Light reception)
80 mm sq Fan Motor
SOL
Relay
PCB
DX Solenoid
Registration Solenoid
Casette Solenoid
MP Solenoid
Toner Sensor PCB (Light emission)
DX Sensor PCB
DX Tray Sensor
DX Paper
Size Sensor
Main Motor
Paper Eject Sensor
Thermister (For Heat Roller)
Thermister
Relay PCB
Jam Clear
Cover Sensor
Rear
Registration
Sensor
Casette Sensor PCB
Casette Sensor
Paper Empty
Sensor
LT Front
Connector
LT PCB (Option)
LT Solenoid
LT Paper
Registration Sensor
LT Paper
Empty Sensor
60 mm sq Fan Motor A
Fig. 3-19