Fixing device with non-contact temperature sensor and...

Details Fixing device with non-contact temperature sensor and... Fixing device with non-contact temperature sensor and...

2011-02-01

2011-02-01

Gray, David M (Department: 2852)

Electrophotography

Diagnostics

Fixing

C399S069000, C399S122000

Reexamination Certificate

active

07881625

ABSTRACT:
A fixing device of the invention detects a temperature of plural positions of a heat roller by a multiple non-contact temperature sensor at the same time and controls the temperature of plural heat source members. The non-contact temperature sensor and a contact temperature sensor detect the temperature of the same position. According to the detection result, maintenance is performed or a temperature conversion table is corrected, the non-contact temperature sensor is maintained with high precision, and the heat roller is controlled the temperature with high precision.

REFERENCES:
patent: 6626835 (2003-09-01), Kraus
patent: 2006/0062586 (2006-03-01), Sone et al.
patent: 2006/0204265 (2006-09-01), Yoshikawa
patent: 2000-259033 (2000-09-01), None
patent: 2000-259034 (2000-09-01), None
patent: 2005-024436 (2005-01-01), None

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