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AssigneeToshiba Tec Kabushiki Kaisha
InventorTakeshi KOJIMA
Estimating the term…
A temperature control device controls power supplied to a heater based on a temperature estimate value estimated over time so that a temperature control target to which heat propagates from the heater of the fixing unit reaches a preset target temperature. The temperature control device includes a temperature sensor, first and second storage circuits, a temperature difference detection circuit, and a target temperature correction circuit. The temperature sensor detects a temperature of the heater. The first storage circuit stores the temperature estimate value. The second storage circuit stores a sensor temperature. The temperature difference detection circuit calculates an actual temperature rise amount from a temperature difference between the temperature estimate value and the temperature of the heater from the respective storage circuits. The temperature correction circuit performs control such that a target temperature is lowered in accordance with the actual temperature rise amount.
A temperature controller configured to control power supplied to a heater based on a temperature estimate value estimated over time so that a temperature control target, to which heat propagates from the heater of a fixer, reaches a preset target temperature, the temperature controller comprising:
A non-transitory computer readable medium configured to store instructions thereon, which, when executed by a processor of a temperature controller, cause the following operations to be carried out:
Dependencies are inferred from the claim text.