
Chapter 9
9-1
9.1 Control Panel
9.1.1 Overview
0020-4158
The machine's control panel consists of the following PCBs, and is controlled by the ASIC of the image processor PCB.
The indication on the LCD is in 5 lines (132 x 65 dots).
F-9-1
9.2 Fans
9.2.1 Overview
0020-4160
This machine is provided with a fan to cool the fixing unit.
F-9-2
9.2.2 Fan Control
0020-4162
The fan motor control circuit is shown below.
F-9-3
Switching between full-speed rotation and half-speed rotation is controlled as described below.
1) Full-speed control
When the CPU on the DC controller outputs a fan full speed signal (FAN_FULL), the fan drive voltage switching circuit supplies a +24 V fan drive voltage to turn
ASIC
LED
LCD
Key SW
Image Processor
PCB
Cntrol Panel PCB
FM1
J219
+24V
FM1
FANDRV
GND
FAN_LOCK
Fan drive
voltage
switching circuit
CPU
DC Controller PCB
3
2
1
FAN FULL
FAN HALF
Summary of Contents for iR2318 series
Page 1: ...May 12 2014 Service Manual iR2422 2420 2320 2318 Series ...
Page 2: ......
Page 6: ......
Page 16: ...Contents ...
Page 17: ...Chapter 1 Introduction ...
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Page 50: ......
Page 51: ...Chapter 2 Installation ...
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Page 58: ...Chapter 2 2 4 7 Left cover front 15 Right cover upper 8 Manual feed tray 16 Right cover lower ...
Page 62: ...Chapter 2 2 8 8 Manual feed tray 16 Right cover lower ...
Page 64: ...Chapter 2 2 10 8 Manual feed tray 16 Right cover lower ...
Page 89: ...Chapter 2 2 35 ...
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Page 91: ...Chapter 3 Main Controller ...
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Page 103: ...Chapter 4 Original Exposure System ...
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Page 135: ...9 Remove the reader heater left 1 Connector 2 1 pc Screw 3 1 pc F 4 73 2 3 1 ...
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Page 137: ...Chapter 5 Laser Exposure ...
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Page 148: ...Chapter 5 5 8 ...
Page 149: ...Chapter 6 Image Formation ...
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Page 165: ...Chapter 7 Pickup Feeding System ...
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Page 192: ...Chapter 7 7 24 ...
Page 193: ...Chapter 8 Fixing System ...
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Page 207: ...Chapter 9 External and Controls ...
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Page 229: ...Chapter 10 Maintenance and Inspection ...
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Page 235: ...Chapter 11 Standards and Adjustments ...
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Page 240: ...Chapter 11 11 2 ...
Page 241: ...Chapter 12 Correcting Faulty Images ...
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Page 257: ...Chapter 13 Self Diagnosis ...
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Page 269: ...Chapter 14 Service Mode ...
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Page 287: ...Chapter 15 Upgrading ...
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Page 295: ...Chapter 16 Service Tools ...
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Page 301: ...Chapter 17 Backup Data ...
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Page 303: ...Contents Contents 17 1 Backup Data 17 1 ...
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Page 307: ...May 12 2014 ...
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