Sheet transport apparatus

Sheet feeding or delivering – Feeding – By means to convey sheet

Reexamination Certificate

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Reexamination Certificate

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08052146

ABSTRACT:
Provided is a sheet inverting apparatus wherein members, such as a roller, are not brought into contact with the printed surface of a sheet at all, and the occurrence of dirt can be prevented by eliminating friction of ink on the surface of the sheet. A first transport apparatus and a second transport apparatus each have a plurality of transport belts which move on transport tracks along sheet transport directions and a suction box which sucks the sheet on the transport belts through suction holes formed on the transport belts. A turn guide arranged between the first transport apparatus and the second transport apparatus has a plurality of guide ribs disposed between the transport belts. Each of the guide ribs coming into slidable contact with the sheet forms a curved inverting transfer surface from an inversion starting point side to an inversion end point side.

REFERENCES:
patent: 4078489 (1978-03-01), Davis
patent: 4362380 (1982-12-01), Dragstedt
patent: 4997178 (1991-03-01), Ogoda
patent: 5461467 (1995-10-01), Malachowski
patent: 5921544 (1999-07-01), Benedict
patent: 7584957 (2009-09-01), Edinger
patent: 2002/0158410 (2002-10-01), Dolz et al.
patent: 2007/0216083 (2007-09-01), Kawashima et al.
patent: 05-078000 (1993-03-01), None
patent: 05-107968 (1993-04-01), None
patent: 06-025460 (1994-07-01), None
patent: 08-091624 (1996-04-01), None
patent: 2002-103768 (2002-04-01), None
patent: 2004-001290 (2004-01-01), None

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