An image forming apparatus capable of ensuring a log when a malfunction has occurred in an operation panel, without affecting working performance of the image forming apparatus is provided. The image forming apparatus includes a volatile memory, an operation device, and a processor. The volatile memory accumulates a log of actions of each function and has a volatile property. The operation device receives user operations performed by a user. The processor is configured to determine whether a user operation pattern based on a series of the user operations within a certain period of time received by the operation device satisfies a predetermined condition or not. Then, when the user operation pattern satisfies the predetermined condition, the processor is configured to store the log accumulated in the volatile memory into a nonvolatile memory having a nonvolatile property.