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Technology > Controls > DADF > Original Scanning Assembly
Technology > Controls > DADF > Original Scanning Assembly
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Glass Shift Control
This equipment has a scanning glass on the undersurface of the scanner unit.
A standard white plate is attached to this scanning glass for shading correction and dust
detection correction.
The reader controller drives the glass shift motor (M9) on a timely basis to shift the scanning
glass.
This enables the reader controller executing above-mentioned correction by comparing
reflection data between the position of standard white plate and the position for image
scanning.
State
Shift operation of scanning glass
Wait
Yes
Standby
No
When recovered from sleep state
Yes
When scanning 2 sides
Yes
At post rotation
Yes (After 2 sides scanning only)
[1]
Glass shift home position detection signal
[2]
Glass shift motor drive signal
[3]
Scanning glass
[4]
Standard white plate
[5]
Scanner unit
SR11: Glass shift home position sensor
M9: Glass shift motor
Error code:
E202 (Error in scanner home position)
-0101 Error at the glass home position detection operation (outward)
-0102 Error at the glass home position detection operation (homeward)
T-2-14
M9
[2]
[1]
[3]
[4]
SR11
[5]
DADF driver PCB
F-2-67
Содержание F-1
Страница 14: ...2 2 Technology Technology Basic configuration Controls Service Work ...
Страница 72: ...3 3 Periodic Servicing Periodic Servicing Periodic Servicing List ...
Страница 135: ...5 5 Adjustments Adjustments Overview Adjustment Method ...
Страница 175: ...Appendix Service Tools General Circuit Diagram ...