FUJITSU fi-4750C - Manual (Page 53)

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:
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.
35 mm 10 mm
No printing allowed
Paper feeding
direction
No binding holes allowed