106 AppendicesCleaning the Shading BoardsThe shading boards are the white standard boards located behind the platenrollers. A dirty shading board may alter scanned colors or cause marks on theimages.1. Turn ON the power.2. Hold the upper unit as shown in the diagram, and open it slowly until it stops.CAUTIONThe pickup roller is located in the middle of the upper unit. Do nothold the protrusion on the upper unit when you open it. Doing somay deform the pickup roller or cause a feeding error.IMPORTANTBe sure to open the upper unit until it stops. If it is not opened all the way, theshading boards cannot come out.3. Press the start button for about two seconds.The shading boards come out above the platen rollers (upper and lower).4. Wipe the only surface of the shading boards with a firmly wrung clothmoistened with water.CAUTIONWipe both the upper and lower shading boards.Shading Boards