Brother HL-1020, HL-820, HL-1040 manual Panel Sensor PCB, Power Supply Low-voltage Power Supply

1.4Panel Sensor PCB

The following parts are on the panel sensor.

•Control Panel ........... 1 Switch, 4 lamps

•Connector ................ Low-voltage, high-voltage, solenoid, main motor, toner sensor, laser, polygon motor, connector for main PCB

•Registration sensor

1.5Power Supply

1.5.1Low-voltage Power Supply

The power supply uses a switching regulation system to generate the regulated DC power (+5V and +24V), which are converted from the AC line.

The regulated output and the production code of each power supply vary depending on the printer model as listed below;

Model	Regulated Output	Production Code
HL-820/1020/1040	+5V / 0.6 A	100V: MPW1547
	+24V / 2.0 A	200V: MPW1447
HL-1050	+5V / 1.2A	100V: MPW1550
	+24V / 2.0A	200V: MPW1450

Fuse	Lightning
	Surge	Heater
	Absorber
		Circuit

(Heater)

Thermal

Fuse

Lamp

Feedback

Line

Rectifier Oscillator

Filter

24V

Regulation

Circuit

5V

Regulation

Circuit

(Panel Sensor Circuit)

24V

5V

Fig. 2-27

II-24