fi-5120C / fi-5220C Image Scanner Operator
Guide
TROUBLE SHOOTING
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7.5 Multi feed Detection Conditions (1)
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There are three multi feed detection modes: document overlapping, document length, and both document thickness
and length. The following conditions must be satisfied in each of these detection modes.
Detection by Document Overlapping
Sheets of the same thickness shall be set in the ADF at a time.
● Document thickness: 0.065 to 0.15mm
● Punched holes are not allowed within 35mm of the vertical center line of the document.
● Other paper shall not be glued within 35 mm (1.4 in) of the vertical centerline of the document.
Detection by Document Length
Sheets of the same length shall be set in the ADF at a time.
● Document length deviation: 1% or less
● Punched holes are not allowed within 35mm of the vertical center line of the document.
Detection by Document Overlapping and Length
Sheets of the same thickness and length shall be set in the ADF at a time.
● Document thickness: 0.065 to 0.15mm
● Document length deviation: 1% or less
● Punched holes are not allowed within 35mm of the vertical center line of the document.
● Other paper shall not be glued within 35 mm (1.4 in) of the vertical centerline of the document.
ATTENTION
Multifeed detection by overlap will often mis-detect very thick paper or plastic document.
When scanning documents like this, please disable the multifeed detection.
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