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Operation Description
2 - 7
OKIPAGE 16n
Service Manual, P/N 59274401
Output voltage
Use
+5 V
Logic circuit supply voltage
+30 V
Motor and fan drive voltage and source voltage for high-voltage supply
+8 V
Reset circuit
–8 V
Local Talk Line voltage
Output
Voltage
Use
Remarks
CH
-1.30 KV
Voltage applied to charging roller
DB
-240 V/+300 V
Voltage applied to developing roller
SB
-360 V/450 V
Voltage applied to toner supply roller
TR
+4 KV/-1.3 kV
Voltage applied to transfer roller
Variable
CB
+400 V
Voltage applied to cleaning roller
2.2
Power Supply Board
The power supply 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 necessary for electrophotographic processing
from +30 V according to the control sequence from the control board. When cover open state
is detected, +30 V supply is automatically interrupted to stop the supply of all the high-voltage
outputs.
(3) Photosensor
The photosensor mounted on this power supply board supervises the paper running state
during printing.
Содержание Okipage 16n
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Страница 165: ...Wiring Diagrams 7 2 OKIPAGE 16n Service Manual P N 59274401 7 2 PCB Layout 1 Main board BOARD COM ...
Страница 166: ...Wiring Diagrams 7 3 OKIPAGE 16n Service Manual P N 59274401 2 Power Supply board 3 Driver board AOLC PCB ...
Страница 167: ...Wiring Diagrams 7 4 OKIPAGE 16n Service Manual P N 59274401 4 PostScript board BOARD PSBA OKIPAGE16n PS only ...
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Страница 187: ...Centronics Parallel Interface A 4 OKIPAGE 16n Service Manual P N 59274401 This page was intentionally left blank ...
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Страница 208: ...High Capacity Second B 21 OKIPAGE 16n Paper Feeder Service Manual P N 59274401 5 2 PCB Layout AOLT PCB ...
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Страница 232: ...Multi Feeder C 21 OKIPAGE 16n Maintenance Service Manual P N 59274401 5 2 PCB Layout AOLE PCB ...
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Страница 238: ...OKIPAGE 16n Service Manual Part Number 59274401 Printed in the USA ...