Ricoh V-C3 Technical Training Manual page 278

Dust Detection – Action Taken
! If dust is detected, the scanner carriage position for ADF scanning
is moved by 0.7 mm, in the direction of the left scale.
! The next time that dust is detected, the scanning position is
moved again by 0.7 mm, in the direction of the left scale.
! The third time that dust is detected, the scanning position is not
moved. An alert message is displayed but the job does not stop.
Slide 278
# If dust is detected after the scanner has been moved two times, an alert is
displayed, but the job does not stop.
# Then, at the start of the next job, the scanner stays at the same position as the
end of the previous job. But if dust is detected there, the scanner goes back to
home position and the dust detection process starts again.
0.7 mm 0.7 mm
b
a c
34 mm
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V-C3 Training