Brother HL 2060 - B/W Laser Printer Service Manual page 46

P2
/HV1AC 1
DNSTY 5
/HV1DC 2
/DBAC 3
/DBDC 4
/HVHALF
16
Figure 3.10 High-Voltage Power Supply Block Diagram 1
PRIMARY HIGH-VOLTAGE AC
Sin Wave
Generator
Control Unit
(Feedback Circuit)
(ON / OFF Circuit)
PRIMARY HIGH-VOLTAGE DC
Pulse Current
Generator Buffer
Current
Buffer
PULSE
Control Unit
(Feedback Circuit)
(DNSTY Control Circuit)
(ON / OFF Circuit)
DEVELOPER BIAS AC
Pulse
Generator
Control Unit
(Feedback Circuit)
(ON / OFF Circuit)
DEVELOPER BIAS DC
Current
PULSE
Buffer
Current
Buffer
Control Unit
(Feedback Circuit)
(DNSTY Control Circuit)
(ON / OFF Circuit)
III-13
Current
Buffer
Current
Buffer
High-Voltage
Electrode
P5
High-Voltage
Electrode
P4
DBOUT