Appendices 119Chapter 45. Close the upper unit slowly. Be sure that the upper unit is completely closed bypushing on both edges with both hands until you hear a click.IMPORTANTDo not force the upper unit to close. Doing so may damage the scanner.Removing and Attaching the Retard RollerFollow the procedure below to remove and attach the retard roller for cleaningor replacement.CAUTIONDo not use excessive force when removing or attaching therollers. Doing so may damage them.Removing the Retard Roller1. 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 feed error.
