Patent ID: 9709934
Date: 2017-07-18
CPC Classifications: G03G

Claim:
1. An image forming apparatus for forming an image on a recording medium, comprising: a heating roller; a temperature sensor configured to detect a temperature of the heating roller; a controller having a processor; a signal wire configured to transmit a signal of the temperature sensor to the controller; and a first resistor disposed between the controller and the signal wire, wherein the controller includes the controller further includes a voltage generation unit configured to generate a predetermined second DC voltage, the image forming apparatus further includes a power supply wire configured to supply the second DC voltage generated by the voltage generation unit to the temperature sensor, the determination unit determines whether or not an abnormality occurs in the power supply wire, on the basis of the voltage value detected by the voltage detection unit, the image forming apparatus further includes an amplifier disposed between the temperature sensor and the signal wire, the amplifier amplifies the detection signal of the temperature sensor, and the voltage generation unit supplies the second DC voltage to the amplifier through the power supply wire.