Maintenance
If the scanner does not reconnect:
1. Turn off the scanner
2. Unplug the power cable from the scanner.
3. Restart your computer.
4. After the restart is complete, plug the power cable back in, and turn the scanner back on.
Problem: The paper jams the ADF. How can I keep the paper from jamming so often?
To reduce the number of paper jams, smooth and straighten the paper before scanning, and adjust the
guides to the paper width. Paper fed into the ADF at an angle can cause the feed mechanism to jam. If
paper jams are occurring more frequently, try cleaning the roller and ADF pad with a soft cloth
dampened with Isopropyl rubbing alcohol. Excessive dust on the roller can make it appear worn and
will cause issues feeding paper. See "Cleaning the Scanner" on page 84 for cleaning instructions.
Problem: The ADF won't feed pages properly. How can I fix it?
A dirty or worn ADF pad assembly or dirt on the roller can cause documents to feed in skewed at an
angle, or multiple pages to feed at the same time. Try cleaning the roller first. See "Cleaning the
Scanner" on page 84. If that doesn't solve the problem, the pad assembly may need to be replaced. It
is user-replaceable. See Xerox DocuMate 3640 Scanner Parts List on page 98 for the ordering number.
See Replacing the ADF Pad Assembly on page 87 for the steps to replace the pad.
Problem: The paper jams about halfway through the scan. How can I keep this from happening?
Check the flatbed glass to make sure no items are on it when you scan from the ADF. Multiple items
placed on the flatbed glass will raise the lid slightly, thus preventing the pages feeding through the
ADF from touching the glass. When that occurs, the pages are unable to feed back out of the ADF and
the pages can jam.
Problem: The motor runs but doesn't feed the paper. How can I fix it?
Make sure the paper is securely seated in the ADF so the paper rests on the rollers. The paper sensor
that initiates the rollers to grab the paper may be engaged, but the paper may not be fully in the ADF
tray so the rollers cannot grab a page to feed it through.
Problem: The scans from the ADF are always crooked. What do I need to do to get the scans
straight?
Make sure to align the paper guides to the edges of the paper. If you are scanning small items that are
smaller than the paper guides' minimum adjustment, scan these items on the flatbed glass instead.
Problem: The scanner is reporting Double-Feed errors but there is only one page in the ADF. What
is the problem?
If there is excessive paper dust or dirt on the Double-Feed sensor, the scanner will report false Double-
Feed errors. Make sure you clean the Double-Feed sensor, when cleaning the ADF, as described
previously in this section. The Double-Feed sensor is located in the body of the ADF, the receiving
sensor is underneath the ADF door, opposite of the Double-Feed sensor.
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DocuMate 3640
User's Guide