Specifying a Multifeed Detection Method [Multifeed]

Multifeed is an error when two or more sheets are fed through the ADF at once. It is also called a "multifeed" when a different document length is detected.

Not noticing multifeed errors while scanning may put you in a situation where important data are missing from the scanned images.

Multifeed detection function is equipped to prevent such troubles. When this function is enabled, an error message is displayed as soon as it detects a multifeed, and stops the scan. Note that multifeeds cannot be detected in the area of 15 mm from the leading edge of the document.

Start up the Software Operation Panel.

Refer to Starting Up the Software Operation Panel.
From the list on the left, select [Device Setting 2] → [Multifeed].

Select a detection method.

Detection	Description
None	Does not detect multifeeds.
Check Overlapping (Ultrasonic)	Detects multifeed by the overlapping of documents. When this is selected, you can specify the following two options: Specify the detection range by the length from the leading edge of the document. Proceed to Specifying the Area to Detect Multifeed [Document check area specification for Multifeed Detection] for more details. Ignore the multifeed when there is paper of the same size attached to a designated location on the page. Proceed to Bypassing Multifeed Detection for a Fixed Format for more details.
Check Length	Detects multifeed by the difference in length of the documents. Note that multifeed cannot be detected accurately when scanning a mixed batch (in different sizes) or a Job Separation Sheet.
Check Overlapping and Length	Detects multifeed by a combination of [Check Overlapping (Ultrasonic)] and [Check Length]. Note that multifeed cannot be detected accurately when scanning a mixed batch (in different sizes) or a Job Separation Sheet.
Length	Select a length difference from 10/15/20 mm. Any length under the specified length will not be detected as multifeed.

ATTENTION

To scan documents with different lengths, specify [Check Overlapping (Ultrasonic)].
When a photo or a piece of paper is attached on the document, the overlapping part of the document may be falsely detected as multifeed if [Check Overlapping (Ultrasonic)] is specified. In this case, specify [Check Length].

Note however that [Check Overlapping (Ultrasonic)] can still be used by restricting the detection range.

HINT

This setting can also be configured in the scanner driver's setup dialog box. Note that priority is given to the scanner driver setting.