Patent ID: 9110429
Filing Date: 2015-08-18
Classification: G01K,G03G

Abstract:
1. An image forming apparatus, comprising: an apparatus body including an image forming unit that forms an image on a recording paper; an in-apparatus temperature sensor that detects an in-apparatus temperature that is a temperature inside the apparatus body; and an outside-air-temperature calculation unit that calculates an outside-air temperature that is a temperature outside the apparatus body on the basis of the in-apparatus temperature detected by the in-apparatus temperature sensor, wherein the image forming apparatus is configured to switch an operation mode between a normal mode and a sleep mode in which the power is less consumed than in the normal mode, the image forming apparatus further comprises: a storage unit that stores therein data on a difference between the in-apparatus temperature detected by the in-apparatus temperature sensor and the outside-air temperature; a mode determination unit that determines whether a mode at a current time point is either the normal mode or the sleep mode; and a clocking unit that clocks or estimates an elapsed time from a start time of the mode determined by the mode determination unit to a current time point, and the outside-air-temperature calculation unit is configured to correct, on the basis of the mode at a current time point determined by the mode determination unit and the elapsed time from a start time of the mode clocked by the clocking unit to a current time point, the in-apparatus temperature detected by the in-apparatus temperature sensor on the basis of the data so that the corrected temperature is calculated as the outside-air temperature.