Sheet-material associating – Associating or disassociating – Signature associating
Patent
1991-06-03
1992-07-14
Look, Edward K.
Sheet-material associating
Associating or disassociating
Signature associating
270 58, B42B 200
Patent
active
051296403
ABSTRACT:
The sheet finisher includes a predetermined folding mode for receiving a sheet from a copy machine and which features a plurality of transfer guides through which the sheets received from the copy machine are selectively transferred; switching flappers for switching the flow of the sheet between guides, a temporary holding guide in which the leading end portion of sheets can be temporarily inserted; a sheet folding arrangement including press roller pairs for folding the sheets; a sheet discharge angle control device which varies the angle at which the sheets are discharged onto an upper tray in accordance with the folding mode that is being used; a tray shift mechanism for moving the tray left and right so as to stack the sheets which are discharged thereonto in a classifying manner; a friction roller for moving a predetermined corner of each of the sheets into a preselected corner of the tray; a fastening device for fastening the sheets which have been maneuvered into the preselected corner by the friction roller; a tray rise mechanism for changing the distance between the upper surface of the tray and the level at which the sheets are discharged; an escape mechanism which drops processed stacks of sheets from the upper tray into a lower one; and a tray angle varying mechanism for changing the angle of the lower tray when the stacks are dropped theretowards.
REFERENCES:
patent: 4382592 (1983-05-01), Harding
patent: 4640611 (1987-01-01), Ohdake et al.
patent: 4717134 (1988-01-01), Iida et al.
patent: 4762312 (1988-08-01), Ushirogata
patent: 4917366 (1990-04-01), Murakami
patent: 5020785 (1991-06-01), Kosaka
Japanese Patent Abstract, JP-A-61 183055, Fuji Xerox Co., Ltd., Aug. 15, 1986.
Japanese Patent Abstract, JP-A-60 015 357, Fuji Xerox K.K., Jan. 26, 1985.
Hayashi Kenji
Kimura Hiroshi
Kosaka Kenji
Suzuki Akihiro
Ikegami Tsushinki Co. Ltd.
Look Edward K.
Newholm Therese M.
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