| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology that can improve reliability of an image forming apparatus including a fixing unit having a plurality of heating elements.SOLUTION: An image forming apparatus of the present invention includes: a fixing unit that has a heater having a first heating element and a second heating element and fixes a toner image formed on a recording material on the recording material, a first driving element that is provided in a power supply path to the first heating element; a second driving element that is provided in a power supply path to the second heating element; a control unit that controls the first driving element and the second driving element, respectively; a first detection unit that detects a current flowing through the first heating element; a second detection unit that detects a current flowing through the second heating element; and a safety circuit that receives a first output of the first detection unit and a second output of the second detection unit. When the difference between a value according to the first output and a value according to the second output exceeds a predetermined threshold, the safety circuit outputs a blocking signal to block the supply of power to at least one of the first heating element and the second heating element. |
