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2-6
2-6
2
2
Technology
Technology
Controls
Scanner drive control
Con
fi
guration of drive system
Following is the parts con
fi
guration related with scanner drive system.
ACOM, BCOM
HP
Reader controller PCB
Scanner motor (M1)
Scanner unit
Scanner home position
sensor (SR2)
Component parts
Symbol
Function
Scanner motor
M1
Control of the drive/stop, direction and speed of motor rotation
Scanner unit HP sensor
SR2
Scanner unit HP detection
Scanner unit
-
Image reading, analog image processing
■
Scanner motor control
Following is the control system con
fi
guration related with the scanner motor control.
Motor driver on the reader controller PCB controls the drive/stop, direction and speed of
scanner motor rotation in accordance with the signals from CPU.
1) Backward operation after image scanning
Backward operation after image scanning until shading position of scanner unit is control-
led by 468 mm/sec regardless of color mode.
2) Forward operation at image scanning
At image scanning, the following motor control controls the scanner unit operation.
Start position
Acceleration
Image leading edge
Normal speed
Image trailing edge
Deceleration
Stop
Shift
speed
Shift length
[1]
[2]
[3]
[4]
[1] Acceleration Zone: accelerates to suit the selected mode.
[2] Approach Zone:
moves for speed stabilization.
[3] Image Read Zone: reads the image at a specific speed.
(if black-and-white/SEND mode, twice as fast as in full-color mode.)
[4] Deceleration Zone: past the image trailing edge, immediately decelerates and stops.
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Summary of Contents for L1
Page 4: ...BLANK PAGE ...
Page 10: ...BLANK PAGE ...
Page 11: ...2 2 2 Technology Technology Technology Basic configuration Controls ...
Page 31: ...3 3 3 Periodic Service Periodic Service Periodic Servicing Periodic Servicing List ...
Page 41: ...5 5 5 Adjustmnet Adjustmnet Adjustments Overview Adjustment Method ...
Page 49: ...6 6 6 Installation Installation Installation Color Image Reader L1 ...
Page 78: ...Service Tools General Circuit Diagram Appendix Appendix Appendix ...