Heating roll for fixing toner

Details Heating roll for fixing toner Heating roll for fixing toner

1988-06-07

1989-10-17

Walberg, Teresa J.

Electric heating

Heating devices

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

219216, 355286, G03G 1520

Patent

active

048749273

ABSTRACT:
The resistive layer of an electrically heated toner fixing roll includes a Fe-Cr-Al metal alloy phase and a ceramic substrate phase thermally sprayed onto the surface of a thermally and electrically insulated metal roll. The ceramic substrate can be Al.sub.2 O.sub.3 and the alloy can be 64-89 wt % Fe; 10-30 wt % Cr; and 2-10 wt % Al. Al.sub.2 O.sub.3 can be the insulating layer, and the metal roll can be iron, or an iron-based alloy.

REFERENCES:
patent: 4714819 (1987-12-01), Yamashita
patent: 4724305 (1988-02-01), Iimura

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