Clean the scanning section of ADF using the procedure detailed below if it becomes dirty.
Open the ADF and wipe off any dirt on the Original glass using a soft, clean cloth.
If it is difficult to remove the dirt, wipe the original glass using a cloth dampened with water.
Wipe the slit glass until clean with a soft, clean cloth.
Open Lever [DF1] and then conveyance guide.
Wipe the Slit scan glass for back side until clean using a soft, clean cloth.
Press the label section to close the conveyance guide.
Close the ADF.