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Technology > Controls (Reader) > Controls > IDirt Sensor Control
Technology > Controls (Reader) > Controls > IDirt Sensor Control
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Control Details
In horizontal scanning direction, sensor level of each original detection position is measured
by moving the Scanner Unit to the detection position shown in the figure in relation to the
original set position.
Original sensor 1
B5
A5
A4
B5R
A4R
A5R
B4
A3
K8
K16
LTRR
STMT
LTR
LGL
279.4×431.8mm
(11"×17")
Original sensor 2
AB type
Inch type
STMTR
CCD original detection position
CCD original detection position
Original detection
position 1
Original detection
position 2
Original detection
position 3
Original detection
position 1
Original detection
position 2
Original detection
position 3
Original detection
position 4
Original detection position 5
Original detection position 6
F-2-3
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IDirt Sensor Control
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Overview
When reading an original, original reading position is changed according to the presence/
absence of dust on the Stream Reading Glass or the Guide Plate of the ADF (on the Platen
Roller in case of the reverse model), or image correction is performed to prevent the dust to
be printed on an image.
[Control timing]
• At the end of a job
• Between sheets (for each reading of a sheet)
• At the start of a job (only when any of the following conditions is true.)
Dust detected at all points of detection at the end of the previous job
Dust detection failed to end normally at the end of the previous job (e.g., ADF opened)
Main power
switch ON
Dust detection
control
STBY
WMUP
Start key
ON
1st
SCAN
2nd
SCAN
Dust detection
control
Dust detection
control
F-2-4
Содержание Color Image Reader-F1
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Страница 12: ...2 2 Technology Technology Basic Configuration Reader Controls Basic Configuration ADF Controls ADF ...
Страница 72: ...5 5 Adjustment Adjustment Adjustment Reader Overview ADF Adjustment Method ADF ...
Страница 101: ...Appendix Service Tools General Circuit Diagram ...