Electrophotography – Diagnostics – Fixing
Reexamination Certificate
2007-05-01
2007-05-01
Tran, Hoan (Department: 2852)
Electrophotography
Diagnostics
Fixing
C399S067000, C399S069000
Reexamination Certificate
active
10971027
ABSTRACT:
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.
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patent: 6580883 (2003-06-01), Suzumi
patent: A 1-293379 (1989-11-01), None
patent: A 8-292679 (1996-11-01), None
patent: B2 2636231 (1997-04-01), None
patent: A 10-83878 (1998-03-01), None
Brother Kogyo Kabushiki Kaisha
Oliff & Berridg,e PLC
Tran Hoan
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