Sheet feeding or delivering – Feeding – With means to interrupt feeding
Reexamination Certificate
2007-10-10
2010-12-07
Karmis, Stefanos (Department: 3653)
Sheet feeding or delivering
Feeding
With means to interrupt feeding
C271S263000, C271S259000, C271S265040, C271S265020
Reexamination Certificate
active
07845637
ABSTRACT:
Provided is a double feed detecting device, including: a first detecting unit which is disposed in a conveyance path of a sheet member, and detects overlapping of the sheet members which pass along the conveyance path; a second detecting unit having a light emitting unit and a light receiving unit which are opposed each other and disposed across the conveyance path, and detecting light which is irradiated from the light emitting unit and transmitted through the sheet member by the light receiving unit, and outputting a signal corresponding to a received light quantity; and a discriminating unit which discriminates the double feed when the first detecting unit detects the overlapping of the sheet members and an output signal of the second detecting unit is equal to or lower than a set double feed determination threshold value.
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Canon Denshi Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Gonzalez Luis
Karmis Stefanos
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