Sheet finisher, image forming apparatus using the same, and...

Details Sheet finisher, image forming apparatus using the same, and... Sheet finisher, image forming apparatus using the same, and...

2011-04-12

2011-04-12

Nicholson, III, Leslie A (Department: 3651)

Sheet-material associating

Associating and folding

Sheet associating

C270S032000, C270S037000, C270S058070

Reexamination Certificate

active

07922160

ABSTRACT:
A sheet finisher of the invention includes a saddle stitch unit configured to stitch a center of a sheet bundle in which printed sheets are bundled, a fold unit configured to fold the center stitched by the saddle stitch unit and to form a fold line, and a fold reinforcing unit configured to reinforce the fold line formed by the fold unit, and the fold reinforcing unit includes a placement table on which the sheet bundle transported from the fold unit is placed, a band-like elastic member that is extended to face the fold line of the placed sheet bundle and is formed to be longer than the length of the fold line, and a roller unit that includes a reinforce roller and moves the reinforce roller along the direction of the fold line while pressing it to the fold line through the intervening elastic member.

REFERENCES:
patent: 6905118 (2005-06-01), Yamada et al.
patent: 7431274 (2008-10-01), Kushida et al.
patent: 2005/0189689 (2005-09-01), Kushida et al.
patent: 2003-182928 (2003-07-01), None
patent: 2004-059304 (2004-02-01), None
patent: 2004-106991 (2004-04-01), None
patent: 2005-089140 (2005-04-01), None
patent: 2005-162345 (2005-06-01), None

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