Sheet post-treatment apparatus

Details Sheet post-treatment apparatus Sheet post-treatment apparatus

1996-05-21

1997-10-21

Merritt, Karen B.

Sheet feeding or delivering

Delivering

Multiple discharge

271294, 271287, 271220, 271 303, 270 53, 4147902, B65H 3910

Patent

active

056788185

ABSTRACT:
The present invention provides a sheet post-treatment apparatus comprising a sheet bundle convey unit including at least one sheet receiving tray unit capable of accommodating a sheet, a convey unit for conveying the sheet on the sheet receiving tray unit, and a sheet stacking tray for receiving the sheet and for stacking the sheets thereon. Apparatus includes a hold member capable of shifting between a first position where the hold member is overlapped with a stacking surface of the sheet stacking tray above the stacking surface, and a second position where the hold member is retracted from the stacking surface. When the sheet is conveyed to the stacking surface, the hold member supports a rear end portion of the sheet at the first position, and the hold member is shifted to the second position at a predetermined timing to drop a rear end portion of the sheet, thereby stacking the sheets.

REFERENCES:
patent: 4037832 (1977-07-01), Looney
patent: 4068837 (1978-01-01), Lamos
patent: 4361393 (1982-11-01), Noto
patent: 4385827 (1983-05-01), Naramore
patent: 4900009 (1990-02-01), Kitahara et al.
patent: 4928941 (1990-05-01), Uto et al.
patent: 4930761 (1990-06-01), Naito et al.
patent: 5217215 (1993-06-01), Ohato et al.

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