Photocopying – Contact printing – Light boxes
Patent
1993-02-05
1995-06-06
Grimley, A. T.
Photocopying
Contact printing
Light boxes
219216, 355295, G03G 1500
Patent
active
054227100
ABSTRACT:
A sheet discharging device is used in an image forming apparatus including fixing means adopting heat roller fixing method of fusing a toner image transferred to a sheet so as to fix the same on the sheet while transporting the sheet by heating and pressing rollers rotated at a specified speed. This sheet discharging device is provided with a sheet discharger including first and second rollers and arranged downstream from the fixing device, a contact point of the first and second rollers being located toward the pressing roller from a tangent line on a point of a circumferential surface of the heat heating roller which intersects with a straight line connecting centers of the heating and pressing rollers, and a drive mechanism for driving the first roller and the heating roller so that a speed of the first roller at the circumferential surface thereof is greater than that of the healing roller. Accordingly, a sheet curled in the fixing device can be straightened with a simple construction.
REFERENCES:
patent: 3937637 (1976-02-01), Moser et al.
patent: 4541707 (1985-09-01), Yoshinaga
patent: 4933726 (1990-06-01), Moriyama
patent: 5103267 (1992-04-01), Wada et al.
Migita Kouji
Nakahata Akinobu
Oda Kenji
Shinohara Masahiro
Shirasaka Kazumi
Dang Thu A.
Grimley A. T.
Mita Industrial Co. Ltd.
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