Sharp AR-C360P, Service Manual

Page: 21 / 180

Rev. 1
2 1 /
Output Voltage
+5V (1)
+5V (2)
+5V (3)
+24V
Purpose
PU, Logic Circuit Power Source
LED Head
CU
For Monitor Drive
2.3 Power Unit
This is a high voltage power unit consisting of high voltage power source circuit and a low voltage
power unit composed of a power unit consists of an AC filter circuit, low voltage power source circuit
and heater drive circuit.
(1) Low Voltage Power Unit
This circuit generates the following voltage.
(2) High Voltage Power Unit
This circuit generates the following voltage that is more powerful than +24V necessary for
the electrophotographic process, according to the control sequence from the control PCB.
Output
CH
DB
SB
BB
TR
Voltage
-0.8 to -1.4kV
-100 to -450V/250V
-300 to -700V
Drop from SB Output with Zener
0 to 7kV
Purpose
Power to Electrification Roller
Power to Development Roller
Power to Toner Supply Roller
Power to Development Blade
Power to Transfer Roller
Remarks