Patent ID: 8511780

Claim:
An image forming apparatus comprising: an image forming mechanism including a motor, and an image forming unit which operates by a driving force of the motor to form an image on a recording sheet; a registration unit which registers a job based on an external command; a control unit which controls the image forming mechanism to form an image corresponding to the job registered through the registration unit on a recording sheet; a number obtaining unit which obtains a number of recording sheets required for the job registered through the registration unit; and a setting unit which sets a rotation speed of the motor according to the number of recording sheets obtained by the number obtaining unit, and a temperature acquisition unit which acquires temperature information indicating a temperature of the motor, wherein the setting unit sets the rotation speed of the motor according to the temperature information acquired by the temperature acquisition unit and the number of recording sheets obtained by the number obtaining unit, wherein the control unit controls the image forming mechanism to form the image corresponding to the job registered through the registration unit on the recording sheet by rotating the motor at the rotation speed set by the setting unit, and wherein, when a temperature difference between the motor temperature indicated by the temperature information acquired by the temperature acquisition unit and an upper limit value of the motor temperature is represented by ΔT and the remaining number of recording sheets obtained by the number obtaining unit is represented by N, the setting unit sets the rotation speed of the motor to a lower value as a value ΔT/N is smaller, and sets the rotation speed of the motor to a higher value as the value ΔT/N is larger.