Brother HL-2030 - High-Voltage Power Supply

CHAPTER 3 THEORY OF OPERATION
Confidential
3-18
1.4.2 High-voltage power supply
The high-voltage power supply generates and outputs the voltages and currents for the
charging, development and transfer functions.
For the circuit diagram of the high-voltage power supply PCB, see APPENDIX 10. ‘HIGH-
VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM’ in this manual.
Transfer Roller
Supply
Roller
Exposure
Drum
Developer
Roller
Corona
Unit
Current
Regulator
Current
Regulator
Voltage
Regulator
Voltage
Regulator
B1
B50
B70
Voltage
Circuit
Voltage
Circuit
Q20
24V
GND
3.3V
Cleaning Brush
Fig. 3-25