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US 11,906,916 B2Granted
Heating device, fixing device, drying device, laminator, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsYuusuke Furuichi, Hiroshi Seo, Tomoya Adachi, Daisuke Hirano
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Abstract
A heating device includes a planar heater, a rotator, a pressure rotator, a heating device frame, a resistor, and a discharger. The pressure rotator has a conductive outer surface and presses the rotator. The heating device frame holds the pressure rotator. The discharger is in contact with the conductive outer surface of the pressure rotator and grounded via the resistor and the heating device frame.
Claims15
A heating device comprising:
- a planar heater;
- a rotator including a conductive layer, the rotator grounded via the conductive layer;
- a pressure rotator having a conductive outer surface and being configured to press the rotator;
- a heating device frame holding the pressure rotator;
- a resistor;
- a rectifier coupled in series to the resistor;
- a discharger being in contact with the conductive outer surface of the pressure rotator and grounded via the rectifier, the resistor, and the heating device frame;
- and
- another rectifier coupled to the conductive layer, the another rectifier configured to flow a current in a direction opposite to a current flowing through the rectifier, wherein the rectifier and the another rectifier are grounded via the resistor, and the rectifier is coupled in series to the discharger.
6 more elements
Dependencies are inferred from the claim text.