Automatically variably shaped sheet stacking tray surface...

Details Automatically variably shaped sheet stacking tray surface... Automatically variably shaped sheet stacking tray surface...

2006-03-07

2009-02-24

Bollinger, David H (Department: 3653)

Sheet feeding or delivering

Delivering

To receiver for pack of sheets

C271S209000, C271S220000

Reexamination Certificate

active

07494121

ABSTRACT:
A system and method of stacking printed sheets with sheet curl stacking problems in an automatically variable configuration stacking system having a spaced array of repositionable initial sheet supporting surfaces providing a generally planar initial stack supporting configuration on which a limited amount of sheets initially stack, and then, in response to stacking additional sheets in said system, the stacking system automatically changes to a different, arcuate, stack supporting configuration by automatically lowering at least some of the spaced array of initial sheet supporting surfaces to arcuately bend the curled sheets in an arcuate direction transverse the sheet curl direction on a fixed stacking surface that is arcuate transversely of the sheet curl direction.

REFERENCES:
patent: 4982945 (1991-01-01), Marasco et al.
patent: 5737987 (1998-04-01), Olson et al.
patent: 5975521 (1999-11-01), Ono et al.
patent: 6065747 (2000-05-01), Khovaylo et al.
patent: 6478296 (2002-11-01), Jensen et al.
patent: 6819906 (2004-11-01), Herrmann et al.
patent: 2003/0107166 (2003-06-01), Cost et al.

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