Fusing device for electrostatic copier

Details Fusing device for electrostatic copier Fusing device for electrostatic copier

1979-05-16

1981-01-06

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219469, 432 60, 432228, H05B 100, G03G 1500

Patent

active

042438691

ABSTRACT:
A fusing apparatus for an electrostatic copier has a flexible web rotatably driven between first and second pressure fixing rollers that are further supported by a rotatable, third pressure roller substantially in contact with the web and the second pressure fixing roller. Only the web is heated in an area just prior to the first pressure fixing roller. The entrapped copy sheet follows a concave path formed by the web and the first pressure fixing roller outer diameter, during which time the toner is gradually melted until it is finally pressed and fixed on the copy sheet by the first and second pressure fixing rollers.

REFERENCES:
patent: 3202818 (1965-08-01), Thomiszer
patent: 3637976 (1972-01-01), Ohta et al.
patent: 3920328 (1975-11-01), Toto et al.
patent: 3980863 (1976-09-01), Wulz et al.
patent: 4132882 (1979-01-01), Endo et al.

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