Sheet perforation apparatus including an aligning device and post-processing apparatus and image forming system including perforation apparatus
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United States of America Patent
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Jun 25, 2013
Grant Date -
Sep 16, 2010
app pub date -
Mar 5, 2010
filing date -
Mar 11, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A perforation apparatus, having: a perforation device to perforate a sheet by a punch; a pair of aligning members to align the sheet in a sheet width direction; and a contact member to contact with an trailing edge of the sheet, capable of being inserted and retracted with respect to a conveyance path of the sheet, disposed at an upstream side of the punch in the sheet conveyance direction; wherein the sheet is moved and aligned to a sheet aligning position while being grasped by the aligning members, the aligning device is retracted from the sheet aligning position after the aligning operation is completed, subsequently the contact member pushes the trailing edge of the sheet and conveys the sheet to a predetermined position, then the sheet is perforated by the perforation device.
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Cited Art Landscape
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