
Chapter 4
4-11
The reader motor driver controls rotation/stop and rotational direction/speed of the reader motor based on the signals from IC2.
F-4-12
a. Forward Movement during Image Scan
During image scan, operation of the contact image sensor (CIS) is controlled by controlling the motor as shown below.
F-4-13
b. Backward Movement after Image Scan
After image scan, the carriage moves back to the contact image sensor (CIS) shading position at the constant speed (118 mm/sec).
4.3.2 Contact Image Sensor (CIS)
4.3.2.1 Outline
0020-4233
Reader controller PCB
3.3V
+24V
RTP3APWN
RTP3BPWN
RTP3A
RTP3B
MO_STANDBY
MO_TORQUE
+5V
J409
B*
B
A
A*
IC2
Motor
driver
1
2
3
4
M401
Start
position
Acceleration
Leading edge
of original
Constant speed
Trailing edge
of original
Stop
Movement
speed
Movement distance
[1]
[2]
[3]
[4]
[1] Acceleration area: The motor accelerates to the speed specified for each mode.
[2] Runup area: A margin to stabilize the speed.
[3] Image read area: The image is read at a constant speed.
[4] Deceleration area: Upon detection of the trailing edge, the motor decelerates rapidly and stops.
Deceleration
Содержание iR2318 series
Страница 1: ...May 12 2014 Service Manual iR2422 2420 2320 2318 Series ...
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Страница 17: ...Chapter 1 Introduction ...
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Страница 51: ...Chapter 2 Installation ...
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Страница 58: ...Chapter 2 2 4 7 Left cover front 15 Right cover upper 8 Manual feed tray 16 Right cover lower ...
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Страница 91: ...Chapter 3 Main Controller ...
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Страница 97: ...Chapter 3 3 3 F 3 3 SEND FAX PullScan E Mail BDL Print PC Original Copy A A A Print output Scan Image data ...
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Страница 103: ...Chapter 4 Original Exposure System ...
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Страница 137: ...Chapter 5 Laser Exposure ...
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Страница 149: ...Chapter 6 Image Formation ...
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Страница 165: ...Chapter 7 Pickup Feeding System ...
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Страница 241: ...Chapter 12 Correcting Faulty Images ...
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Страница 287: ...Chapter 15 Upgrading ...
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Страница 307: ...May 12 2014 ...
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