High-Voltage Power Supply - Brother HL-1440 Service Manual

1.6.2

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
R1
Current
24VI
Regulator
B1
Voltage
Regulator
VR22
Current
Regulator
B102
Voltage
Regulator
B101 Q101
GND
Voltage
Regulator
Z51
Q81
VR51
Fig. 3-26
Supply
Roller
Photosensitive
Development
Roller
3-21
CHAPTER 3 THEORY OF OPERATION
Appendix 22.
Transfer Roller
Drum
Corona
Unit