Patent ID: 7953337

Claim:
An image forming device equipped with a heater for fusing toner on a recording medium, the image forming device comprising: a first memory for storing an initializing program and a control program; a second memory for reading the control program; and a temperature sensor for detecting a temperature of the heater or a member heated by the heater; wherein the initialization program stored in the first memory is configured to be able to drive the heater before the control program is copied from the first memory to the second memory, the initialization program examines a detected value of the temperature sensor before copying the control program from the first memory to the second memory, copies the control program regardless of the output of the temperature sensor, and drives the heater only if the detected value is lower than or equal to a predetermined temperature, and the initialization program stops the heater if the heater is being driven after copying the control program from the first memory to the second memory.