DocuMate 3115User’s Guide109Replacing the Roller AssemblyAfter extended use, the roller may wear out and may need to be replaced. It is a user-replaceable part and can be reordered.Frequent paper jams are a symptom of a worn roller assembly. A worn roller can causedocuments to feed in skewed at an angle, or multiple pages to feed at the same time. Aworn roller should be replaced to avoid damage to the scanner’s internal parts. Before replacing theroller you should clean it as excessive dust on the roller will make it appear worn and smooth. Youcannot properly diagnose a worn roller until you have cleaned it.1. From the back of the scanner, lower the input tray.2. Press down on the two latches on the back of the docking station and lower the rear cover.3. The roller is held in place with a lock tab that rotates to lock and unlock it. To unlock the tab, rotateit upward until the small lock flange is completely free.4. When the roller is unlocked, it can be removed from its mounting sockets.