Fixing device usable with an image forming apparatus

Details Fixing device usable with an image forming apparatus Fixing device usable with an image forming apparatus

2006-02-02

2010-06-22

Gray, David M (Department: 2852)

Electrophotography

Diagnostics

Fixing

C399S037000

Reexamination Certificate

active

07742711

ABSTRACT:
A fixing device usable with an image forming apparatus having a fixing roller to fix a toner on a recording medium, a heater to heat the fixing roller, and a power supplier to supply an electric power to the heater includes a relay interposed between the power supplier and the heater to supply and interrupt the electric power to the heater, an auxiliary power supplier to supply a driving power to the relay, and a thermoswitch interposed between the relay and the auxiliary power supplier and mounted adjacent to the fixing roller -to be electrically opened when the fixing roller reaches a predetermined overheating temperature. The fixing device is used in an image forming apparatus to reduce manufacturing costs and improve credibility and stability on an overheating prevention operation.

REFERENCES:
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Chinese Office Action dated Mar. 7, 2008 issued in CN 2006-10051409.1.
Chinese Letters Patent Issued Jul. 1, 2009 in CN Patent No. 200610051409.1.

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