Spine formation device, post-processing apparatus, and bookbinding system
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United States of America Patent
Stats
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Feb 7, 2012
Grant Date -
Mar 17, 2011
app pub date -
Aug 17, 2010
filing date -
Sep 14, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An spine formation device includes a sheet conveyer, a contact member including a first row of grooves provided in a contact surface thereof to house a projection projecting from a folded portion of a bundle of folded sheets, a driving unit to move the contact member, first and second sandwiching units to squeeze the bundle, a discharge unit, and a controller. The first row of grooves extends in parallel to the folded portion of the bundle and includes at least a first pair of grooves inclined in different directions with an interval therebetween varying in size with location of the grooves in a first direction perpendicular to a sheet conveyance direction. The contact member is moved to change the size of interval between the first pair of grooves at a position aligned with the projection projecting from the folded portion of the bundle of folded sheets.
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