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Multifeed Detection
Multifeed occurs when two or more sheets are fed through the ADF at the same time, or when different document lengths are detected.
Multifeed detection checks for overlapping documents, the length of documents, or both. The following conditions must be met to avoid triggering multifeed detection:
- ADS-4300N/ADS-4700W
- All pages in the document loaded in the ADF must be the same weight.
Paper weight must be between 11 lb and 53 lb (between 40 g/㎡ and 200 g/㎡).
- The 3.15 in. (80 mm) area in the center of the document must be free of perforations or holes, and must have no other documents attached to it.
- The document must be placed in the center of the Pick Up Roller.
- All pages in the document must be wider than 3.15 in. (80 mm).
- ADS-4900W
- All pages in the document loaded in the ADF must be the same weight.
Paper weight must be between 9 lb and 110 lb (between 35 g/㎡ and 413 g/㎡).
- The 1.77 in. (45 mm) area in the center of the document must be free of perforations or holes, and must have no other documents attached to it.
- The document must be placed in the center of the Pick Up Roller.
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- Scanning thick documents such as plastic cards may incorrectly result in multifeed errors. If this happens, disable multifeed detection.
- A multifeed cannot be detected when the machine is set to
(Manual Single Mode).
- If the document paper are too thin or the width of the documents is too narrow, the sensor may not be able to detect a multifeed.
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