41356801TH Rev.1
19 /
2.2
Power Supply/Sensor Board
The power supply/sensor board consists of an AC filter circuit, a low voltage power supply circuit, a high
voltage power supply circuit, heater drive circuit, and photosensors.
(1) Low Voltage Power Supply Circuit
This circuit generates the following voltages.
(2) High Voltage Power Supply Circuit
This circuit generates the following voltages required for electrophotographic process from +5V,
according to the control sequence from the main control board. When cover open state is detected,
+5V supply is interrupted automatically to stop the supply of all high-voltage outputs.
Output voltage
Use
+5 V
+30 V
+12 V
+3.3V
Logic circuit supply voltage
Motor and fan drive voltage and source voltage for high-voltage supply
Source voltage for high-voltage supply
LED head supply voltage
(3) Photosensor
The photosensor mounted on this power supply/sensor board monitors the status of paper being
fed through the printer during printing.
Output
Voltage
Use
Remarks
CH
DB
SB
TR
CB
Voltage applied to charging roller
Voltage applied to developing roller
Voltage applied to toner supply roller
Voltage applied to transfer roller
Voltage applied to clearing roller
Variable
-1.3 KV
-265 V/+300 V
-500 V/ 0 V
+500 V to +4.5 KV/-1100 V
+400 V/-1350 V
Summary of Contents for OKIPAGE 14
Page 46: ...41356801TH Rev 1 46 Upper cover unit Figure 3 2 Upper cover ...
Page 129: ...41356801TH Rev 1 129 Figure 8 2 Upper cover unit 1 ...
Page 174: ...41356801TH Rev 1 174 5 2 PCB Layout OLEV 11 PCB CN3 CN2 SEN2 ...
Page 175: ...41356801TH Rev 1 175 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8 ...
Page 190: ...41356801TH Rev 1 190 CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR 5 2 PCB Layout TQSB 2 PCB ...
Page 191: ...41356801TH Rev 1 191 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST ...
Page 194: ...41356801TH Rev 1 194 SECTION1 CABINET CASSETTE ASSEMBLY 5 6 3 2 4 7 8 1 iv iv i i ...
