Image forming apparatus forming an image by thermally fixing a developed image

When a state, in which the temperature detected by a thermistor for detecting the temperature of a heating roller does not increase, is continued for 15 seconds, even though the printing operation is performed and a heater for heating the heating roller is energized, it is determined that the temper...

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Bibliographic Details
Main Author FUJIWARA YASUSHI
Format Patent
LanguageEnglish
Published 01.05.2007
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:When a state, in which the temperature detected by a thermistor for detecting the temperature of a heating roller does not increase, is continued for 15 seconds, even though the printing operation is performed and a heater for heating the heating roller is energized, it is determined that the temperature of the heating roller does not increase normally. The same determination process is performed again while the printing operation is inhibited from being started with respect to a new sheet. In this determination process, when it is determined that the temperature of the heating roller increases normally, it is not determined as an error state. The printing operation is resumed. On the other hand, when it is determined that the temperature of the heating roller does not increase normally, the printing operation is inhibited.
Bibliography:Application Number: US20040971027