Sheet feeding or delivering – Feeding – Separators
Reexamination Certificate
2006-11-28
2006-11-28
Mackey, Patrick (Department: 3653)
Sheet feeding or delivering
Feeding
Separators
Reexamination Certificate
active
07140605
ABSTRACT:
It is one objective of the present invention to provide a sheet feeding apparatus that can steadily separate and feed individual sheets without causing an image detect, such as a transfer failure. The sheet feeding apparatus, for employing a sheet feeding portion to feed sheets stacked on elevatable sheet stacking means, includes an air blowing portion for blowing air against an end face of a sheet stack supported by the sheet stacking means, a sheet position detector for detecting that a top face of the sheet stack has reached a position whereat a sheet feeding operation by the sheet feeding portion is enabled, wherein, when the sheet position detector has detected that the top face of the sheet stack has reached the position for sheet feeding, or when the sheet feeding portion starts the sheet feeding operation, and when a sheet is not actually fed after a predetermined waiting time has elapsed, the air blowing portion starts an air blowing operation during a predetermined air blowing period.
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Adachi Seiichiro
Koga Hiroto
Suga Takeshi
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Mackey Patrick
Morrison Thomas A.
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