Patent ID: 9285729
Filing Date: 2016-03-15
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: a fixing unit having a heater, and a fixing member configured to be heated by the heater, the fixing unit configured to heat a recording material bearing an image using the fixing member so that the image is fixed on the recording material; a film provided in non-contact with the fixing member, the film configured to increase its temperature by absorbing infrared rays emitted from the fixing member; a first sensor configured to measure a temperature of the film; a holding member configured to hold the film; a second sensor configured to measure a temperature of the holding member; a storage unit for storing corresponding relations among information about measurement results of the first sensor and measurement results of the second sensor, and the temperature of the fixing member, as a plurality of temperature determination information wherein the plurality of temperature determination information has the different corresponding relations; a selection unit configured to select temperature determination information to interest, based on the measurement results of the first sensor and the measurement results of the second sensor, from among the plurality of the temperature determination information stored in the storage unit; and a determination unit configured to determine a temperature of the fixing member using the temperature determination information to interest selected by the selection unit, based on the measurement results of the first sensor and the measurement results of the second sensor.