Multifeed Detection Conditions; Detection By Layer; Detection By Length; A.5.1 - Fujitsu iScanner fi-6010N Operator's Manual

A.5 Multifeed Detection Conditions
There are three multifeed detection modes: document layer, document length, and both document
layer and length. The following conditions must be satisfied in each of these detection modes.
The type of document and document conditions can cause the multifeed detection rate to drop.
A.5.1 Detection by Layer
If [Ultrasonic] is selected in
feeds are detected by layer.
In this case, set sheets of the same thickness in the ADF at any one time.
Document thickness: 0.065 to 0.15mm
Punched holes are not allowed within 17.5mm (0.7in) either side of the center of paper.
Do not glue on any other paper within 17.5mm (0.7in) either side of the center of paper.
A.5.2 Detection by Length
If [Length] is selected in
are detected by length
In this case, set sheets of the same length in the ADF at any one time.
Document length deviation: 1% or less
Punched holes are not allowed within 17.5mm (0.7in) either side of the center of paper.
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"6.9.17 Multifeed Detection (Layer and Length)" (page
"6.9.17 Multifeed Detection (Layer and Length)" (page
399), muli-
399), multifeeds