Image forming apparatus, method, and computer program...

Details Image forming apparatus, method, and computer program... Image forming apparatus, method, and computer program...

2008-04-17

2010-10-05

Ngo, Hoang (Department: 2852)

Electrophotography

Diagnostics

Fixing

Reexamination Certificate

active

07809292

ABSTRACT:
A temperature detecting unit detects temperature of a fixing unit, and a control unit monitors temperatures detected by the temperature detecting unit. The control unit determines that the temperature detecting unit is abnormal when a first difference in temperatures in a first time period exceeds a first threshold.

REFERENCES:
patent: 2004/0037580 (2004-02-01), Ohta
patent: 02-293883 (1990-12-01), None
patent: 2001-27863 (2001-01-01), None
patent: 2007-34016 (2007-02-01), None

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