Ricoh D182 Service Training page 68

Dust Detection – Action Taken
 When dust detection determines that dust exists, the scan point
shifts in order to avoid the dust.
 There are three scanning points.
 a: Home position
 b: The first time that dust is detected, the scanner moves here.
 c: The next time that dust is detected, the scanner moves here.
 If dust is detected again, the scanner moves back to a. Then with
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consecutive dust detections, the scanning position cycles a > b >
c > a > b > c , etc
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OR-C2 Training