Sheet finisher

Sheet-material associating – Associating or disassociating – Sheet associating

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Details

370 5812, 370 5813, B65H 3902

Patent

active

057658242

ABSTRACT:
In a sheet finisher for use with an image forming apparatus, for receiving and aligning sheets discharged from the image forming apparatus, for then stapling the sheets together and for ejecting the stapled sheets to an exit tray, the sheet finisher includes: an intermediate stacker for receiving, aligning and stapling sheets discharged from the image forming apparatus; a conveyor for superimposing a first sheet and a second sheet in a sheet conveyance path upstream of the intermediate stacker, and then for conveying the superimposed sheets to the intermediate stacker to form a succeeding set of sheets to be stapled which follows a preceding set of sheets to be stapled in the intermediate stacker; a driver for driving the conveyor; and a controller for controlling the driver with respect to an operation timing of the driver.

REFERENCES:
patent: 4145241 (1979-03-01), Snellman et al.
patent: 4323229 (1982-04-01), Meus
patent: 4444491 (1984-04-01), Rinchart et al.
patent: 4473425 (1984-09-01), Baughman et al.
patent: 4564185 (1986-01-01), Hamlin et al.
patent: 5044618 (1991-09-01), Ettischer et al.
patent: 5106069 (1992-04-01), Wolf et al.

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