Fusing roller of image forming apparatus

Details Fusing roller of image forming apparatus Fusing roller of image forming apparatus

2006-04-04

2006-04-04

Grimley, Arthur T. (Department: 2852)

Electrophotography

Image formation

Fixing

C399S333000, C219S216000

Reexamination Certificate

active

07024146

ABSTRACT:
A fusing roller of an image forming apparatus including an outer metallic pipe, an inner metallic pipe disposed inside the outer metallic pipe, a resistance heating body disposed between the outer and the inner metallic pipes, generating a resistance heat with a power supply, an end cap and a gear cap respectively connected to both ends of the outer metallic pipe and electrically connected to the resistance heating body, an outer insulator interposed between the resistance heating body and the outer metallic pipe to transmit the resistance heat to the outer metallic pipe, and an inner insulator disposed between the resistance heating body and the inner metallic pipe. As a result, the outer insulator has a higher thermal conductivity than that of the inner insulator.

REFERENCES:
patent: 6069346 (2000-05-01), Hyllberg
patent: 6580895 (2003-06-01), Hirst et al.
patent: 58016273 (1983-01-01), None
patent: 2000321911 (2000-11-01), None
patent: 2000356922 (2000-12-01), None
patent: 2001265149 (2001-09-01), None
patent: 2001265150 (2001-09-01), None

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