Electrical contacting device for fusing roller

Details Electrical contacting device for fusing roller Electrical contacting device for fusing roller

1987-11-02

1989-04-11

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

219469, 355 3FU, H05B 346

Patent

active

048209040

ABSTRACT:
A fusing roller of the type having a thin internal resistance heating layer is electrically contacted by an internal conductive annular element positioned adjacent the end of the roller core. The resistance layer is applied to a common surface formed by the outside of the core and the annular element. Preferably, the resistance layer is covered by a protective layer. With this structure, the contacting device is protected from external damage, for example, from that caused by release oil contamination.

REFERENCES:
patent: 1596181 (1926-08-01), Hills
patent: 2870312 (1959-01-01), Westervelt
patent: 3471683 (1969-10-01), Bogue
patent: 3637984 (1972-01-01), Irvine
patent: 4034189 (1977-07-01), Sakamaki
patent: 4109135 (1978-08-01), Minden et al.
patent: 4395109 (1983-07-01), Nakajima
patent: 4468069 (1984-08-01), Meal
patent: 4544828 (1985-10-01), Shigenobu
patent: 4628183 (1986-12-01), Satomura
Research Disclosure, Jul. 1982, No. 21945, "Resistivity Heated Fuser Roller".

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