2-6
2.4 Power Supply Unit (PSU)
The power supply unit receives the input line voltage and currents it to output voltages of +5 VDC,
+24 VDC, +12 VDC, and -12 VDC.
The heater circuit controls output voltage to the fuser heater according to instructions received from
the heater control circuit.
If an over-current is sensed in the secondary circuit, power is interrupted.
Power supply unit block diagram
The power supply unit has two output connectors.
The following table shows the connector outputs:
CN2 -- to the Fuser Heater
Pin No.
1
2
Output
L
N
P1 -- to the Main Control PCB.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Output
voltage
+24V
GND
HC
+24V
+12V GND -12V
+5V
GND
Summary of Contents for OKIOFFICE 120
Page 7: ...vi ...
Page 17: ...1 10 1 7 Dimensions Dimension in mm ...
Page 23: ...1 16 1 11 ID Label Specification 1 12 Labels location ...
Page 24: ...2 1 Section2 Machine Composition 2 1 Interconnect Block Diagram ...
Page 25: ...2 2 ...
Page 87: ...3 46 Unique Switch F 7 and F 9 Factory use only ...