Handling a Double Feed
When a double feed is detected while scanning, the document pages for which double feeding was detected are ejected at the eject outlet, an error message appears on the Control Panel display, and feeding stops.
When a double feed is detected, the following process occurs, and messages appear according to the Rapid Recovery System setting in the ISIS/TWAIN driver.
When the Rapid Recovery System is Disabled
When the Rapid Recovery System is disabled, images scanned before the double feed are saved as files, scanning finishes, and the following error message is displayed.
When detecting double feeds by document length
When detecting double feeds by ultrasonic sensors
Return the document pages ejected as a result of double-feed detection to the top of the document stack yet to be scanned, and resume scanning.
When the Rapid Recovery System is Enabled
When the Rapid Recovery System is enabled, scanning pauses when a double feed is detected, and the following error message is displayed.
- Check the rejected document page(s).
- If attached paper, such as a label on the document page, appears to be the cause of the double-feed detection, ignore the detection.
- If two document pages were fed together, rescan the double-fed pages.
- Select a process with the
and 
keys and press [Enter].
[Start]:
The image when a double feed is detected is cancelled and the document rescanned.
[Stop]:
Images scanned before double feed detection are saved in files and scanning is finished.
[DFR]:
The images of documents when a double feed is detected are saved and the document rescanned.
