Electrophotography – Control of electrophotography process – Control of fixing
Reexamination Certificate
2008-04-29
2008-04-29
Gray, David M. (Department: 2852)
Electrophotography
Control of electrophotography process
Control of fixing
C399S328000, C219S216000
Reexamination Certificate
active
10923009
ABSTRACT:
A fixing controller that utilizes an induction-heating (IH) fixing technique and a 2-CPU fixing technique is provided to reduce the control workload on the main CPU, and to perform a fine control operation, taking advantage of the temperature flexibility that is naturally achieved by the IH fixing technique. In this fixing controller utilizing the IH fixing technique and the 2-CPU fixing technique, the main CPU that controls an entire image forming apparatus only transmits a power control signal as a control instruction to the IH CPU in an IH control circuit. Accordingly, in this fixing controller, IH control is performed by the IH CPU.
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Nagatsuma Tohru
Takahashi Hiroyuki
Gray David M.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
Walsh Ryan D.
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