Friction retard feeder

Details Friction retard feeder Friction retard feeder

2011-04-12

2011-04-12

Karmis, Stefanos (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

Reexamination Certificate

active

07922169

ABSTRACT:
Sheet feeding systems and methods for using such systems to feed a sheet from a stack in a document processing system are disclosed. An exemplary sheet feeding system may include a feed roll, a retard system, a trailing edge retention system and a system for automatically an selectively separating the feed roll and the retard system. The feed roll may be configured to drive a first sheet of a stack of sheets in a process direction. The retard system may be configured to prevent one or more second sheets from being driven in the process direction. The trailing edge retention system may be configured to automatically and selectively retain one or more second sheets in the stack by applying a force to a trailing portion of at least one second sheet, thus allowing the feed roll and retard system to be separated during much of the feed cycle. As a result, wear of the feed roll and/or retard system may be reduced.

REFERENCES:
patent: 4368881 (1983-01-01), Landa
patent: 4917370 (1990-04-01), Batts
patent: 4971304 (1990-11-01), Lofthus
patent: 5062599 (1991-11-01), Kriegel et al.
patent: 5094442 (1992-03-01), Kamprath et al.
patent: 5114251 (1992-05-01), Mahoney
patent: 5169140 (1992-12-01), Wenthe, Jr.
patent: 5219159 (1993-06-01), Malachowski et al.
patent: 5278624 (1994-01-01), Kamprath et al.
patent: RE35026 (1995-08-01), Mahoney
patent: 5474287 (1995-12-01), Takahashi
patent: 5531311 (1996-07-01), LeMay et al.
patent: 5697608 (1997-12-01), Castelli et al.
patent: 5887996 (1999-03-01), Castelli et al.
patent: 6137989 (2000-10-01), Quesnel
patent: 6168153 (2001-01-01), Richards et al.
patent: 6354584 (2002-03-01), Suga et al.
patent: 6378858 (2002-04-01), Suga
patent: 6494451 (2002-12-01), Michel
patent: 6533268 (2003-03-01), Williams et al.
patent: 6550759 (2003-04-01), Kotaka et al.
patent: 7243917 (2007-07-01), Knierim et al.
patent: 2003/0146567 (2003-08-01), Williams et al.
patent: 2005/0035531 (2005-02-01), Sasaki et al.
patent: 2006/0261540 (2006-11-01), Loiselle et al.
patent: 5-178483 (1993-07-01), None
Karns, Karl L. “An Empirical Evaluation of Nip Mechanics as it Impacts Paper Drive Variability in a Registration System”, Xerox Internal Report Data Sheet, Accession No. X9500117, Issued May 9, 1995.

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