Sheet carrying device, and document carrying apparatus and...

Details Sheet carrying device, and document carrying apparatus and... Sheet carrying device, and document carrying apparatus and...

2009-01-07

2009-12-08

Bollinger, David H (Department: 3653)

Sheet feeding or delivering

Delivering

To receiver for pack of sheets

C271S902000

Reexamination Certificate

active

07628397

ABSTRACT:
A sheet carrying device has a mechanism that prevents a sheet from being fed backward into a carriage path after once discharged from the device, and the sheet carrying device includes a carriage surface that guides a sheet, a reverse roller attached to a rotation shaft of a sheet discharging portion, whose rotation direction is switchable between forward and backward, and a backward-feed prevention valve that prevents an edge of a discharged sheet from entering into a nip portion of the reverse roller, and the backward-feed prevention valve includes a resin sheet and an elastic member disposed at one end on the sheet discharging side of the resin sheet, and the elastic member has one surface supported by the rotation shaft of the reverse roller and the other surface pressing the resin sheet against the carriage surface.

REFERENCES:
patent: 3847388 (1974-11-01), Lynch
patent: 4916493 (1990-04-01), DeVito
patent: 5014976 (1991-05-01), Muck et al.
patent: 5549292 (1996-08-01), Plain
patent: 6073927 (2000-06-01), Sako et al.
patent: 2005/0067765 (2005-03-01), Watanabe et al.
patent: 04-223481 (1992-08-01), None
patent: 05-044951 (1993-06-01), None

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