Fixing device having an electric power control system to an...

Details Fixing device having an electric power control system to an... Fixing device having an electric power control system to an...

2007-11-19

2011-10-11

Gray, David M (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

Reexamination Certificate

active

08036556

ABSTRACT:
A fixing apparatus according to an embodiment of the present invention controls, using a CPU and a temperature comparator, an inverter circuit that supplies electric power to an induction heating coil and performs temperature control for a heat roller. The CPU adjusts and controls a power value supplied by the inverter circuit. When the adjustment and control of the power value by the CPU is late, the inverter circuit is ON-OFF controlled by the temperature comparator.

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patent: 2008/0118263 (2008-05-01), Nakayama et al.
patent: 2008/0118266 (2008-05-01), Nakayama et al.
patent: 2008/0237223 (2008-10-01), Kinouchi et al.
patent: 09-197856 (1997-07-01), None

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