Xerox DocuMate 4799, Руководство пользователя

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Scanner Options, Maintenance and Troubleshooting
Xerox
®
DocuMate
®
4790
User’s Guide
9-156
3. Locate the background plates in the top and bottom of the scanner.
4. There is a green lever attached to each background plate. The sticker on each lever indicates which way to
push the lever to change between the black and white background.
5. Carefully close the scanner when you are finished.
Replacing the Rollers
Frequent paper jams are a symptom of a worn roller assembly. A worn roller can cause documents to feed in
skewed at an angle, or multiple pages to feed at the same time. A worn roller should be replaced to avoid
damage to the scanner’s internal parts. Before replacing the roller you should clean it as excessive dust on the
roller will make it appear worn and smooth. You cannot properly diagnose a worn roller until you have cleaned it.