Brother HL-820, HL-1020, HL-1040 manual Mechanics, Overview of Printing Mechanism

2.MECHANICS

2.1Overview of Printing Mechanism

Papers
Multi-purpose Sheet Feeder
Manual Paper Path
MP Feeder Cover
	Paper Pick-up Roller
	Paper Feed		Drum Unit
	Roller
	Pinch Roller			Photosensitive Drum
			Transfer		Erase Lamp
		Blade Roller
Hopper					Fixing Unit
						Pressure Roller
Plate
Registration Sensor Lever						Eject Roller
Toner Cartridge						Eject Sensor
						Actuator
Polygon Mirror						Heat Roller
			Development			Thermistor
			Roller		Cleaning Roller
Toner Empty			Corona Wire
Laser Scanner Sensor
Supply Roller		Scanner Unit
	Fig. 2-29

Main Cotrol PCB

Panel

Sensor

PCB

EL PCB		Thermistor (for Heat roller)
Scanner Unit
Main Motor
Sub Motor
Main Fan Motor
Sub Fan Motor
	Solenoid
	Primary Charger (Corona Wire)
High-	Primary Charger (Grid)
Voltage	Developer Roller
Power	Transfer Roller
	Cleaner Roller
Supply
	Supply Roller
	Eject Sensor
	Registration Sensor
Toner			Toner Empty Sensor
Empty
Sensor			Thermistor (for Toner)
PCB

Fig. 2-30

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