Chapter 11
11-6
11.4 Power Supply
11.4.1 Power Supply
11.4.1.1 Low-voltage Power Unit
0020-2570
The low-voltage power PCB is to convert AC into DC covering the DC loads.
F-11-3
The low-voltage power PCB is partially activated as soon as plugged in the electrical outlet. When turning ON the power switch (SW4), whole low-voltage power
supply works.
The AC power is then converted into +24V, +5V and +3.3V covering each of machine DC loads. The following are the main loads for each power.
+24V:
Main controller PCB, high-voltage power PCB, Motors, solenoids, fans, reverse unit, and ADF
+5V:
Main controller PCB, driver PCB, laser driver PCB, high-voltage power PCB, memory controller PCB, color displacement/density sensor, and control
panel
+3.3V:
DC controller PCB, main controller PCB, driver PCB, high-voltage power PCB, memory controller PCB, sensor (photo interrupter), environment sensor,
fixing unit, control panel, reverse unit, and ADF
CPU
(IC1001)
Noise filter
Fuse
Power switch
Fuse
Noise filter
Low-voltage power circuit
Remote switch
control circuit
Zero crossing
circuit
24V ON/OFF circuit
24V generation
circuit
5V generation circuit
3.3V generation circuit
Machine power supply
voltage detection circuit
ASIC
(IC1010)
PS100V
3.3V
5V
24VA
PSREM24V
ZEROX
PSOFF
/PSSWOPEN
FSRD
RLD-
DC controller
PCB
Driver PCB
Front cover detection switch
24VA
24VB
24VA
24VB
3.3V 5V
RLD+
Fixing unit
3.3V
Reverse unit
3.3V
24VB
Pickup motor Drum motor
ETB motor Fixing motor
Solenoids
24VB
Photointerrupters
3.3V
High-voltage power PCB
3.3V
24VB
5V
Fan
Scanner motor
24VA
Laser driver PCB
5V
5V
3.3V
Memory controller PCB
Environment sensor
Photointerrupters
3.3V
5V
3.3V
Main controller PCB
Control panel
ADF
Fixing
control
circuit
Low-voltage power PCB
Color displacement/density sensor
SW4
FU3801
FU3901
Protective circuit
Summary of Contents for iR C1020 Series
Page 1: ...Sep 8 2008 Service Manual iR C1020 Series iR C1021i ...
Page 2: ......
Page 6: ......
Page 18: ...Contents ...
Page 19: ...Chapter 1 Introduction ...
Page 20: ......
Page 22: ......
Page 57: ...Chapter 2 Installation ...
Page 58: ......
Page 60: ......
Page 73: ...Chapter 3 Basic Operation ...
Page 74: ......
Page 76: ......
Page 81: ...Chapter 4 Main Controller ...
Page 82: ......
Page 84: ......
Page 97: ...Chapter 5 Original Exposure System ...
Page 98: ......
Page 100: ......
Page 112: ......
Page 113: ...Chapter 6 Original Feeding System ...
Page 114: ......
Page 116: ......
Page 132: ......
Page 133: ...Chapter 7 Laser Exposure ...
Page 134: ......
Page 136: ......
Page 143: ...Chapter 8 Image Formation ...
Page 144: ......
Page 146: ......
Page 180: ......
Page 181: ...Chapter 9 Pickup and Feed System ...
Page 182: ......
Page 213: ...Chapter 9 9 29 F 9 79 1 2 3 ...
Page 214: ......
Page 215: ...Chapter 10 Fixing System ...
Page 216: ......
Page 218: ......
Page 233: ...Chapter 11 External and Controls ...
Page 234: ......
Page 263: ...Chapter 12 e maintenance imageWARE Remote ...
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Page 275: ...Chapter 12 12 9 F 12 27 ...
Page 280: ......
Page 281: ...Chapter 13 Maintenance and Inspection ...
Page 282: ......
Page 284: ......
Page 286: ......
Page 287: ...Chapter 14 Measurement and Adjustments ...
Page 288: ......
Page 290: ......
Page 293: ...Chapter 15 Correcting Faulty Images ...
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Page 317: ...Chapter 16 Error Code ...
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Page 331: ...Chapter 16 16 11 ...
Page 332: ......
Page 333: ...Chapter 17 Special Management Mode ...
Page 334: ......
Page 336: ......
Page 343: ...Chapter 17 17 7 ...
Page 344: ......
Page 345: ...Chapter 18 Service Mode ...
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Page 348: ......
Page 388: ......
Page 389: ...Chapter 19 Upgrading ...
Page 390: ......
Page 392: ......
Page 396: ...Chapter 19 19 4 3 Click Next F 19 4 4 Select a USB connected device and click Next F 19 5 ...
Page 397: ...Chapter 19 19 5 5 Click Start F 19 6 6 Click Yes F 19 7 Download will be started F 19 8 ...
Page 399: ...Chapter 19 19 7 ...
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Page 401: ...Chapter 20 Service Tools ...
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Page 407: ...Sep 8 2008 ...
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