Temperature control device and temperature control method
AssigneeToshiba Tec Kabushiki Kaisha
InventorYutaka USAMI
Life of this patent
Estimating the term…
Abstract
A temperature control device according to one embodiment includes a temperature estimation unit, a comparison unit, and an energization control unit. The temperature estimation unit estimates a temperature of an object based on energization of elements related to temperature control of the object. The comparison unit compares a difference between a detected temperature of the object and an estimated temperature of the object. If the difference exceeds a reference value, the energization control unit stops energizing the elements related to the temperature control of the object.
Claims17
A temperature control device, comprising:
- a temperature estimation unit configured provide an estimated temperature for an object based on energization of elements related to temperature control of the object;
- a comparison unit configured to compare a reference value to a difference between a detected temperature of the object the estimated temperature to a reference value;
- and
- an energization control unit configured to stop energizing the elements related to temperature control of the if the difference exceeds the reference value.
An image forming apparatus management system, comprising:
- a management server;
- and
- a plurality of image forming apparatuses communicably connected to the management server via a network, each image forming apparatus including:
- a fixing device;
- a temperature estimation unit configured to provide an estimated temperature of the fixing device based on energization of a heater in the fixing device;
- a comparison unit configured to compare a reference value to a difference between a detected temperature of the fixing device the estimated temperature to a reference value;
- an energization control unit configured to stop energizing the heater if the difference exceeds the reference value;
- and
- transmission unit configured to transmit an abnormality notification to the management server when the difference exceeds the reference value.
An image forming apparatus management method, the method comprising:
- communicably connecting a plurality of image forming apparatuses to a management server via a network, each image forming apparatus including:
- a fixing device;
- a temperature estimation unit configured to provide an estimated temperature of the fixing device based on energization of a heater in the fixing device;
- a comparison unit configured to compare a reference value to a difference between a detected temperature of the fixing device the estimated temperature to a reference value;
- an energization control unit configured to stop energizing the heater if the difference exceeds the reference value;
- and
- transmission unit configured to transmit an abnormality notification to the management server when the difference exceeds the reference value;
- and
- receiving an abnormality notification from at least one image forming apparatus in the plurality of image forming apparatuses via the network.
Dependencies are inferred from the claim text.