Sheet processing device and image forming apparatus

Details Sheet processing device and image forming apparatus Sheet processing device and image forming apparatus

2011-04-12

2011-04-12

Nicholson, III, Leslie A (Department: 3651)

Sheet-material associating

Associating or disassociating

Sheet associating

C270S058070, C270S058080, C270S058110, C270S058170, C270S058270

Reexamination Certificate

active

07922163

ABSTRACT:
A pressing unit presses vicinity of a trailing edge of a stack of sheets stacked in a tray. An aligning unit aligns the stack of sheets stacked in the tray. A stapling unit binds the stack of sheets aligned by the aligning unit. A discharging unit discharges the stack of sheets bound by the stapling unit. A control unit controls the pressing unit to keep a constant distance from a surface of a top sheet of the stack of sheets when the discharging unit discharging the stack of sheets.

REFERENCES:
patent: 5709376 (1998-01-01), Ushirogata
patent: 6145825 (2000-11-01), Kunihiro et al.
patent: 6799759 (2004-10-01), McNamara et al.
patent: 2006/0261544 (2006-11-01), Tamura et al.
patent: 2006/0279037 (2006-12-01), Kushida et al.
patent: 2007/0235917 (2007-10-01), Nagasako et al.
patent: 2008/0006993 (2008-01-01), Nomura et al.
patent: 2008/0048380 (2008-02-01), Ichihashi et al.
patent: 2008/0067730 (2008-03-01), Suzuki et al.
patent: 2008-019028 (2008-01-01), None
Abstract of JP 11-130338 published May 18, 1999.

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