• Frequently inspect the CIS white roller. A dirty or incorrectly installed white roller will cause the machine to issue SC152-00 (White Level Error: Back Side).

  1. Open the ADF.
  2. Release the pawl at the upper left corner, and open the white plate.
  3. Keep the white cover opened, and rotate the white roller [A] by its gear [B], while using a clean, dry cloth to wipe the surface of the roller clean.