8. Use a cotton swab to gently wipe away any dust or smudges on the sensor. To avoid spreading any
dust, only wipe in the direction indicated by the arrows.
Note: Do not touch the rollers or any metallic parts or your prints may be affected.
9. If the sensor is still dirty, dampen the swab with a small amount of water and a mild detergent and
repeat the previous step. Wipe away any moisture with a dry cotton swab.
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