Chapter 9
9-3
F-9-2
9.2.1.2
Hegh-Voltage Power Supply Circuit
0006-2994
The high voltage output circuit is built into the DC controller PCB.
The CPU on the DC controller PCB sends instructions for the generation of the following high voltages at specific
timing:
- primary charging roller bias (AC v DC negative voltage)
- developing bias (AC v DC negative voltage)
- transfer charging roller bias (DC positive voltage or DC negative voltage)
Analog
processor
PCB
Laser
scanner unit
Solenoids
Main motor
Control
panel PCB
NCU PCB
*2
ADF unit
*1
ADF motor
ADF sensors
Reader unit
slide detecting
switch
Reader motor
Sensors
P1
NF
Power supply PCB
F2
F1
Low-voltage power
supply circuit
+3.3 V circuit
+ 5 V circuit
+12 V circuit
+24 V circuit
+24V
+12V
+5VS
+5V
+3.3VS
+3.3V
F101
+3.3V
+8V
+3.3V
+5V
+24V
+24V
+24V
+3.3V
+5VS
Modular jack
PCB
*2
Contact sensor
Sensor PCB
+5V
+8V
+24V
+3.3V
+3.3VS
+12V
+5V
+24V
+5V
*1 : Only if equipped with ADF functions.
*2 : Only if equipped with fax functions.
DC controller PCB
•
Cassette paper sensor
•
Paper leading edge
sensor
•
LGL paper sensor
Fan
Manual feed tray
paper sensor
+3.3V
+3.3V
+24V
+24V
Printer controller
PCB
+3.3VS
+5VS
+24V
+5V
+3.3V
Image processor PCB
Toner supply cover
open/close
switch
+24V
Waste toner
full sensor
+3.3V
+3.3V
Sensor relay
PCB
•
Humidity sensor
•
Toner bottle sensor
+3.3V
Delivery Sensor
Содержание iR1200 Series
Страница 1: ...Jun 17 2004 Service Manual iR1200 Series iR1570F ...
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Страница 15: ...Chapter 1 Introduction ...
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Страница 85: ...Chapter 2 Installation ...
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Страница 96: ...Chapter 2 2 8 2 Try sending and receiving an original and check the operation and the images ...
Страница 99: ...Chapter 2 2 11 Take full care to avoid severe vibration during the relocation ...
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Страница 101: ...Chapter 3 Basic Operation ...
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Страница 117: ...Chapter 4 Original Exposure System ...
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Страница 131: ...Chapter 5 Laser Exposure ...
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Страница 139: ...Chapter 5 5 5 F 5 15 4 Remove the 4 screws 1 and detach the laser scanner unit 2 F 5 16 3 1 2 2 1 2 1 1 ...
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Страница 141: ...Chapter 6 Image Formation ...
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Страница 153: ...Chapter 7 Pickup Feeding System ...
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Страница 158: ...Chapter 7 7 2 F 7 1 PS4 PS102 PS103 PS3 PS101 ...
Страница 186: ...Chapter 7 7 30 F 7 87 2 1 1 ...
Страница 187: ...Chapter 8 Fixing System ...
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Страница 209: ...Chapter 9 External and Controls ...
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Страница 256: ...Chapter 10 Original Feeding System ...
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Страница 265: ...Chapter 10 10 5 F 10 4 PS7 for jam a b or c PS8 for jam d or e PS2 for jam f ...
Страница 311: ...Chapter 11 Maintenance and Inspection ...
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Страница 323: ...Chapter 12 Standards and Adjustments ...
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Страница 337: ...Chapter 13 Correcting Faulty Images ...
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Страница 353: ...Chapter 14 Self Diagnosis ...
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Страница 405: ...Chapter 15 Service Mode ...
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Страница 487: ...Chapter 16 Service Tools ...
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Страница 489: ...Contents Contents 16 1 List of Special Tools 16 1 16 2 List of Solvents and Oils 16 2 ...
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Страница 493: ...Jun 17 2004 ...
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