Sheet feeder, image reading apparatus, and image forming...

Details Sheet feeder, image reading apparatus, and image forming... Sheet feeder, image reading apparatus, and image forming...

2007-11-20

2007-11-20

Bollinger, David H (Department: 3653)

Sheet feeding or delivering

Feeding

Separator and conveyor

C271S010030, C271S258010, C271S152000, C271S154000, C271S157000

Reexamination Certificate

active

10876341

ABSTRACT:
It is determined whether or not a jammed document is necessarily returned to a document tray when a jam of the document is caused within a carrier path and, then, the elevation operation of the document tray is controlled on the basis of its result of the determination. Since the jammed sheet of which reading has not been completed should be returned to the document tray, the document tray is moved down. Since the jammed sheet of which reading has been completed should not be returned to the document tray, the document tray is maintained at a position as it is. When the apparatus stops due to the carrying jam, a time required for processing the document is shortened.

REFERENCES:
patent: 5716046 (1998-02-01), Katamoto et al.
patent: 6091927 (2000-07-01), Hattori et al.
patent: 6806946 (2004-10-01), Otaki
patent: 11-199065 (1999-07-01), None
patent: 2000-038241 (2000-02-01), None

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