Electrophotography – Control of electrophotography process – Control of fixing
Reexamination Certificate
2007-07-31
2007-07-31
Gray, David M. (Department: 2852)
Electrophotography
Control of electrophotography process
Control of fixing
C399S328000, C219S619000
Reexamination Certificate
active
11254799
ABSTRACT:
An image forming apparatus has an image forming unit; a heating rotatable member; a magnetic flux generator for generating a magnetic flux for induction heat generation in the heating rotatable member; a controller for controlling a temperature of the heating rotatable member; a temperature detector for detecting a temperature of the heating rotatable member at a predetermined region; magnetic flux confinor for confining the magnetic flux from the magnetic flux generator in accordance with an output of the temperature detector; and a moving unit for movement the magnetic flux confinor between a magnetic-flux-confinement position and a n on-magnetic-flux-confinement position, wherein when the output of the temperature detector indicates a temperature outside a predetermined temperature range, an image forming operation is interrupted, and executes operation of the moving unit to move the magnetic flux confinor to the non-magnetic-flux-confinement position and restoring operation to restore the temperature of the heating rotatable member.
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Kondo Toshiharu
Nakase Takahiro
Suzuki Hitoshi
Yamamoto Naoyuki
Yoshimura Yasuhiro
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Gray David M.
Ready Bryan
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