Current-supply control unit, fusing device, image forming apparatus, and current-supply control method
AssigneeRicoh Company, Ltd.
InventorToshimasa Aoki
Life of this patent
Estimating the term…
Abstract
A current-supply control unit for controlling current supply to a heating element includes a voltage detector and a heating element control unit. The voltage detector detects voltage at both ends of the heating element. The heating element control unit controls a duty cycle of current supply for the heating element based on the voltages detected by the voltage detector when current is supplied to the heating element.
Claims11
A current-supply control unit for controlling current supply to a heating element, comprising:
- a voltage detector to detect voltage at both ends of the heating element;
- and
- a heating element control unit to control a duty cycle of current supply for the heating element based on the voltages detected by the voltage detector when current is supplied to the heating element.
A method of controlling current supply to a heating element, comprising the steps of:
- detecting voltage at both ends of the heating element using a voltage detector;
- and
- controlling a duty cycle of current supplied to the heating element based on the voltages detected at both ends of the heating element in the detecting step when current is supplied to the heating element.
A non-transitory computer readable carrier medium storing a program for executing a method of controlling current supply to a heating element, which when executed causes a computer to perform the method of controlling current supply to the heating element, the method comprising the steps of:
- detecting voltage at both ends of the heating element using a voltage detector;
- and
- controlling a duty cycle of current supplied to the heating element based on the voltages detected at both ends of the heating element in the detecting step when current is supplied to the heating element.
Dependencies are inferred from the claim text.