Chapter 11
11-1
11.1 DC Controller
11.1.1 Overview
0020-2652
The CPU in the DC controller PCB controls the operational sequence of the machine.
1) When the power switch of the machine is turned ON, DC power is supplied from the low-voltage power PCB to the DC controller PCB.
2) The CPU in the DC controller PCB starts to control the printer operation.
3) The DC controller receives a print command and image data from the main controller.
4) When the machine is placed in standby, the CPU sends signals to drive each load, such as laser diode, motors, and solenoids, etc.
F-11-1
Driver PCB
DC controller PCB
Cassette paper sensor
Manual feed paper
sensor
ADF paper sensor
Registration sensor
+3.3V
+5V
+24V
AC input
IC1007
EEPROM
IC1002
Reset IC
Drum motors
Paper displacement
sensor
Paper loop sensor
Pre-registration sensor
M
M
Duplexing feed motor
Color displacement
/density sensors
Developing
disengagement solenoids
manual pickup solenoid
Cassette pickup solenoid
ETB disengagement
solenoid
Low-voltage power PCB
Fixing delivery sensor
ADF paper trailing edge
sensor
M
ETB motor
Reverse motor
M
M
Fixing motor
Pickup motor
Environment sensor
Fixing pressure release
sensor
Front cover sensor
Drum HP sensors
Toner level detection
assembly
ADF pickup solenoid
Laser scanner units
BD circuit
Laser driver
New cartridge sensor
Reader HP sensor
SL
Fixing
control
circuit
M
Low-voltage
power circuit
SL
SL
SL
SL
IC801
DUPLEX
CPU
SL
FAN
IC802
Reverse sensor
Delivery sensor
Delivery paper full-level sensor
Duplexing solenoid
Duplex fan
Developing
disengagement sensors
Reverse driver PCB
IC803
Attraction roller
Primary charging rollers
Developing cylinders
Photosensitive drums
Memory tags
High-voltage power PCB
Transfer rollers
ETB unit
Toner cartridges
CPU
(IC1001)
Fixing unit
Main unit fan
IC401
ASIC
(IC1010)
Memory controller PCB
Main controller PCB
ADF
Scanner motors
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 ...
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Page 97: ...Chapter 5 Original Exposure System ...
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Page 112: ......
Page 113: ...Chapter 6 Original Feeding System ...
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Page 133: ...Chapter 7 Laser Exposure ...
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Page 143: ...Chapter 8 Image Formation ...
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Page 181: ...Chapter 9 Pickup and Feed System ...
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Page 213: ...Chapter 9 9 29 F 9 79 1 2 3 ...
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Page 215: ...Chapter 10 Fixing System ...
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Page 218: ......
Page 233: ...Chapter 11 External and Controls ...
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Page 263: ...Chapter 12 e maintenance imageWARE Remote ...
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Page 275: ...Chapter 12 12 9 F 12 27 ...
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Page 281: ...Chapter 13 Maintenance and Inspection ...
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Page 287: ...Chapter 14 Measurement and Adjustments ...
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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 ...
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Page 333: ...Chapter 17 Special Management Mode ...
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Page 343: ...Chapter 17 17 7 ...
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Page 345: ...Chapter 18 Service Mode ...
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Page 388: ......
Page 389: ...Chapter 19 Upgrading ...
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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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