Sheet post-processing apparatus
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United States of America Patent
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-
May 15, 2001
Grant Date -
N/A
app pub date -
Sep 17, 1999
filing date -
Sep 17, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A sheet post-processing apparatus comprises a conveyer for conveying the sheets discharged from the image forming system; a conveying device for conveying the sheets discharged from the image forming system; a pair of upper trays for accommodating the sheets conveyed by the conveying devices, and being horizontally moved in order to align the sheets accommodated therein and fall down the aligned sheets; a pair of upper tray driving devices for providing a driving force to the upper trays; a transmission unit for transmitting the driving force of the upper tray driving device to the upper trays; a lower tray for loading the sheets fallen from the upper trays; and a lower tray driving device for moving the lower tray in upper and lower directions in order to retain distance between the upper trays and the lower tray within a predetermined range. Thus, the sheet post-processing apparatus can accommodate variant size sheets by mechanism consisting of simple and cheap elements.
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