Fujitsu fi-4640S User Manual
4-7
Double Feed Detection Condition
When the double-feed sensor is used, the thickness or the combination of the thickness and the length of
the document is subject to the following specifications:
the document is subject to the following specifications:
1 Thickness: 0.065 mm to 0.15 mm
2 Paper length accuracy: 1% or less
3 Any black print at the center of the leading edge of the paper is not allowed. (10 mm x 10 mm)
4 No binding holes are allowed within 35 mm of the middle (halfway point) along the center of the paper.
5 Printing duty: 12 % or less
6 The deviation of the amount of transparent light on the base color area should be less than 10 %.
NOTICE
Certain paper types or a certain condition of paper result in lower detection rates in terms of double feed
detection.
detection.
35 mm
10 mm
No printing allowed
Paper feeding
direction
direction
No binding holes allowed