Chapter 11
11-2
11.1.2 Operation of Each Block
0020-2653
CPU (IC1001)
The CPU is a 16-bit single-chip processor with built-in ROM and RAM.
It controls the following printer operation according to the control program stored in the ROM.
- Sequence control of the printer engine
- Control of the ASIC
- Control of the fixing assembly
- Control of solenoid
- Control of sensors/switches
- Control of the fixing control circuit (relay drive)
ASIC (IC1010)
The ASIC (Application Specific IC) is an IC used in an interface such as an IC, memory, and external equipment.
It controls the following printer operation according to the command from the CPU.
- Control of the laser scanner unit
- Communication with the main controller
- Control of the high-voltage power PCB
- Control of motors
- Control of fans
- Write/Read EEPROM
- Control of the memory controller PCB
Motor Driver IC (IC401, IC802, IC803)
The motor driver IC controls each motor according to the command from the CPU or ASIC.
Reset IC (IC1007)
The reset IC mo3.3 V voltage, and resets the CPU and ASIC when the power is turned ON.
EEPROM (IC1007)
The EEPROM stores various backup data.
11.1.3 Fan/Motor Control
0020-2654
The machine uses nine motors in total for paper feeding and image formation.
T-11-1
Name
Purpose
Type
Fault detection
Motor
Fixing motor (M1)
To drive the pressure roller and delivery roller
To drive engagement/disengagement of the developing roller
To drive engagement/disengagement of the pressure roller
DC motor
Provided
Pickup motor (M4)
To drive the pickup roller of the machine
Stepping motor
Not provided
ETB motor (M5)
To drive the ETB, To drive engagement/disengagement of the transfer roller DC motor
Provided
M drum motor (M6)
To drive the developing roller, photosensitive drum, and stirring plate
DC motor
Provided
C drum motor (M7)
Y drum motor (M8)
Bk drum motor (M9)
Duplex feed motor (M10)
To drive the duplex feed roller
Stepping motor
Not provided
Reverse motor (M11)
To drive the reverse roller
Stepping motor
Not provided
Fan
Main unit fan (FM1)
To exhaust heat from the inside of the machine
DC motor
Provided
Duplex fan (FM2)
To exhaust heat from the reverse unit
DC motor
Provided
Summary of Contents for iR C1020 Series
Page 1: ...Sep 8 2008 Service Manual iR C1020 Series iR C1021i ...
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Page 18: ...Contents ...
Page 19: ...Chapter 1 Introduction ...
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Page 57: ...Chapter 2 Installation ...
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Page 73: ...Chapter 3 Basic Operation ...
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Page 81: ...Chapter 4 Main Controller ...
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Page 97: ...Chapter 5 Original Exposure System ...
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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 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 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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