Multifeed Detection Conditions; Detection By Layer; Detection By Length; A.5.1 Detection By Layer - Fujitsu 6000NS - fi - Document Scanner 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 35mm (1.4in) of the vertical center line of the docu-
ment.
• Do not glue on any other paper within 35mm (1.4in) of the vertical centerline of the docu-
ment.

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 35mm (1.4in) of the vertical center line of the docu-
ment.
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"4.8.13 Multifeed Detection (Layer and Length)" (page
"4.8.13 Multifeed Detection (Layer and Length)" (page
250), muli-
250), multifeeds