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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.
Summary of Contents for Okipage 16n
Page 46: ...Parts Replacement 3 3 OKIPAGE 16n Service Manual P N 59274401 Figure 3 1 3 2 Parts Layout ...
Page 47: ...Parts Replacement 3 4 OKIPAGE 16n Service Manual P N 59274401 Figure 3 2 ...
Page 70: ...Parts Replacement 3 27 OKIPAGE 16n Service Manual P N 59274401 A 9 8 6 7 5 1 3 4 2 3 4 ...
Page 74: ...Parts Replacement 3 31 OKIPAGE 16n Service Manual P N 59274401 9 8 8 5 3 4 6 2 1 A 7 ...
Page 90: ...Parts Replacement 3 47 OKIPAGE 16n Service Manual P N 59274401 4 8 9 7 5 6 A 2 1 3 3 ...
Page 103: ...Adjustment 4 6 OKIPAGE 16n Service Manual P N 59274401 This page was intentionally left blank ...
Page 162: ...Troubleshooting 6 45 OKIPAGE 16n Service Manual P N 59274401 Figure 6 6 ...
Page 232: ...Multi Feeder C 21 OKIPAGE 16n Maintenance Service Manual P N 59274401 5 2 PCB Layout AOLE PCB ...
Page 238: ...OKIPAGE 16n Service Manual Part Number 59274401 Printed in the USA ...