Sheet-material associating – Associating or disassociating – Signature associating
Patent
1989-06-28
1991-08-06
Look, Edward K.
Sheet-material associating
Associating or disassociating
Signature associating
270 58, B42B 200
Patent
active
050370774
ABSTRACT:
An image forming after-treatment apparatus for stapling sheets of recording paper discharged from an image forming device comprises a discharging tray device arranged in an upper portion of a machine frame of the apparatus; a staple section arranged in a lower portion of the machine frame; an inlet for the sheets of recording paper discharged from the image forming device; a first passage formed from the inlet to the discharging tray device; a second passage formed from the inlet to the staple section; a third passage formed from the staple section to the discharging tray device; and a stapling device arranged in the staple section and stapling the sheets of recording paper on a recording paper receiving portion. The after-treatment apparatus may comprise a reference side fence for the recording paper disposed in the recording paper receiving portion; a drawing device disposed in the recording paper receiving portion and drawing the recording paper toward the reference side fence; and a device for enabling the stapling device and the reference side fence to be integrally movable in accordance with the size of the recording paper. The after-treatment apparatus may comprise a discharging device disposed in the staple section and discharging the stapled sheets of recording paper and directly connected to the discharging tray without any passage.
REFERENCES:
patent: 4073391 (1978-02-01), O'Brien
patent: 4479641 (1984-10-01), Bean
patent: 4607831 (1986-08-01), Rayback
patent: 4898372 (1990-02-01), Hirabayashi
Kubota Kazunori
Yamazaki Hideo
Look Edward K.
Newholm Therese M.
Ricoh & Company, Ltd.
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