Electric heating – Heating devices – Combined with diverse-type art device
Reexamination Certificate
2008-05-13
2008-05-13
Pelham, J. (Department: 3742)
Electric heating
Heating devices
Combined with diverse-type art device
C219S494000, C399S033000, C399S069000, C399S334000
Reexamination Certificate
active
07371995
ABSTRACT:
A fixing device includes: a fixing roller; a center temperature detection unit including a protective member, the center temperature detection unit contacts the fixing roller in an axial center of the fixing roller and detects a temperature of the center section; an end temperature detection unit that contacts the fixing roller at an end portion of the fixing roller outside of a maximum print area of the recording medium and detects a temperature of the end section; and a control unit that controls heating of the fixing roller performed by the heating unit so that the heating is stopped when the value detected by the center temperature detection unit has exceeded a first upper limit value and when the value detected by the end temperature detection unit has exceeded a second upper limit value, the first upper limit value being lower than the second upper limit value.
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Banner & Witcoff , Ltd.
Brother Kogyo Kabushiki Kaisha
Pelham J.
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