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Dust Detection (SP 4020)
This function checks the ADF exposure glass for dust that
can cause black lines in copies.
If dust is detected, a message is shown on the operation
panel, but the machine does not stop.
SP 4020 001: Enable/disable (default – disabled)
SP 4020 002: Sensitivity adjustment
SP 4020 003: Adjusts image processing parameters to
remove thin vertical lines that are caused by dust (default –
disabled)
A piece of dust on the ADF exposure glass causes a thin
vertical line on the scanned image. This is because the ADF
feeds the paper above the exposure glass during scanning.
Dust on the glass is shown on each line of the scanned
image, and the result is a thin vertical line.
SP 7852: Shows the number of times that the machine
detected dust on the ADF.
Slide 287
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287
Di-C1.5 Training
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