Heat roller type fixing means

Details Heat roller type fixing means Heat roller type fixing means

1982-05-03

1983-12-13

Wityshyn, Michael G.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

29123, 100 93RP, 156555, 156582, 219216, 432228, H05B 100

Patent

active

044206801

ABSTRACT:
The fixing means for an electrostatic recording apparatus comprises a pair of revolving rollers in pressure contact with one another, of which at least one roller may be a heating roller, and in which each roller is a deformable thin cylinder supported for rotation at its ends by a resilient deformable end piece. The two revolving rollers are urged against one another by a pair of aligned pressure rollers extending along substantially the entire length of the revolving rollers and between them exerting a pressure against said revolving rollers in a direction perpendicular to the axes thereof. The result is to provide between the two revolving rollers a constant elastically deformable and restorable nip across the entire length of said revolving rollers. Because of this construction and the close contact between the rollers, their surface temperature can be quickly raised, a uniform nipping width is maintained, and no permanent roller deformation results.

REFERENCES:
patent: 3749626 (1973-07-01), Buck
patent: 4001544 (1977-01-01), Heinzer et al.
patent: 4229950 (1980-10-01), Fessenden

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