An image-forming apparatus, comprising: a power-source part configured to generate and supply a voltage necessary for the operation of the image-forming apparatus, and to be connected to an external power source; a fixing device configured to have a rotating heating body, a heater configured to use energization to heat the rotating heating body, and a rotating pressing body having an elastic layer and configured to press against the rotating heating body to form a nip portion, the fixing device configured to allow paper to pass through the nip portion and performing fixation, a toner image having been transferred to the paper; a power-source switch configured to turn off the power source of the image-forming apparatus; a memory part configured to store recorded data indicating that the power source of the image-forming apparatus was turned off due to operation of the power-source switch; characterized by a fixing motor configured to cause the rotating heating body and the rotating pressing body to rotate when the memory part is activated due to powering-on of the image-forming apparatus, electric power to be applied to the fixing motor for initiating rotation of the fixing motor at a first torque when the memory part stores the recorded data concerning a previous instance of the power source of the image-forming apparatus being turned off, and to be applied electric power for initiating rotation at a second torque when the recorded data is absent from the memory part, the second torque being less than the first torque; and a drive-transmitting part configured to have a plurality of gears (1011,1021) to transmit drive force of the fixing motor to one or both of the rotating pressing body and the rotating heating body, and to cause the rotating pressing body and the rotating heating body to rotate. a power-source part configured to generate and supply a voltage necessary for the operation of the image-forming apparatus, and to be connected to an external power source; a fixing device configured to have a rotating heating body, a heater configured to use energization to heat the rotating heating body, and a rotating pressing body having an elastic layer and configured to press against the rotating heating body to form a nip portion, the fixing device configured to allow paper to pass through the nip portion and performing fixation, a toner image having been transferred to the paper; a power-source switch configured to turn off the power source of the image-forming apparatus; a memory part configured to store recorded data indicating that the power source of the image-forming apparatus was turned off due to operation of the power-source switch; characterized by a fixing motor configured to cause the rotating heating body and the rotating pressing body to rotate when the memory part is activated due to powering-on of the image-forming apparatus, electric power to be applied to the fixing motor for initiating rotation of the fixing motor at a first torque when the memory part stores the recorded data concerning a previous instance of the power source of the image-forming apparatus being turned off, and to be applied electric power for initiating rotation at a second torque when the recorded data is absent from the memory part, the second torque being less than the first torque; and a drive-transmitting part configured to have a plurality of gears (1011,1021) to transmit drive force of the fixing motor to one or both of the rotating pressing body and the rotating heating body, and to cause the rotating pressing body and the rotating heating body to rotate.